Franklin Submersible Motors 2007 Users Manual

2007 to the manual 123b1374-84c0-425a-860c-8d4eba3cac1c

2015-02-09

: Franklin Franklin-Submersible-Motors-2007-Users-Manual-552104 franklin-submersible-motors-2007-users-manual-552104 franklin pdf

Open the PDF directly: View PDF .
Page Count: 75

Submersible Motors

Application • Installation • Maintenance

60 Hz, Single-Phase and Three-Phase Motors

2007

ATTENTION!

IMPORTANT INFORMATION FOR INSTALLERS OF THIS EQUIPMENT!

THIS EQUIPMENT IS INTENDED FOR INSTALLATION BY TECHNICALLY QUALIFIED PERSONNEL.

FAILURE TO INSTALL IT IN COMPLIANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES, AND

WITHIN FRANKLIN ELECTRIC RECOMMENDATIONS, MAY RESULT IN ELECTRICAL SHOCK OR FIRE

HAZARD, UNSATISFACTORY PERFORMANCE, AND EQUIPMENT FAILURE. FRANKLIN INSTALLATION

INFORMATION IS AVAILABLE FROM PUMP MANUFACTURERS AND DISTRIBUTORS, AND DIRECTLY

FROM FRANKLIN ELECTRIC. CALL FRANKLIN TOLL FREE 800-348-2420 FOR INFORMATION.

WARNING

SERIOUS OR FATAL ELECTRICAL SHOCK MAY RESULT FROM FAILURE TO CONNECT THE MOTOR,

CONTROL ENCLOSURES, METAL PLUMBING, AND ALL OTHER METAL NEAR THE MOTOR OR CABLE,

TO THE POWER SUPPLY GROUND TERMINAL USING WIRE NO SMALLER THAN MOTOR CABLE

WIRES. TO REDUCE RISK OF ELECTRICAL SHOCK, DISCONNECT POWER BEFORE WORKING ON OR

AROUND THE WATER SYSTEM. DO NOT USE MOTOR IN SWIMMING AREAS.

ATTENTION!

INFORMATIONS IMPORTANTES POUR L’INSTALLATEUR DE CET EQUIPEMENT.

CET EQUIPEMENT DOIT ETRE INTALLE PAR UN TECHNICIEN QUALIFIE. SI L’INSTALLATION N’EST

PAS CONFORME AUX LOIS NATIONALES OU LOCALES AINSI QU’AUX RECOMMANDATIONS DE

FRANKLIN ELECTRIC, UN CHOC ELECTRIQUE, LE FEU, UNE PERFORMANCE NON ACCEPTABLE,

VOIRE MEME LE NON-FONCTIONNEMENT PEUVENT SURVENIR. UN GUIDE D’INSTALLATION

DE FRANKLIN ELECTRIC EST DISPONIBLE CHEZ LES MANUFACTURIERS DE POMPES, LES

DISTRIBUTEURS, OU DIRECTEMENT CHEZ FRANKLIN. POUR DE PLUS AMPLES RENSEIGNEMENTS,

APPELEZ SANS FRAIS LE 800-348-2420.

AVERTISSEMENT

UN CHOC ELECTRIQUE SERIEUX OU MEME MORTEL EST POSSIBLE, SI L’ON NEGLIGE DE

CONNECTER LE MOTEUR, LA PLOMBERIE METALLIQUE, BOITES DE CONTROLE ET TOUT METAL

PROCHE DU MOTEUR A UN CABLE ALLANT VERS UNE ALIMENTATION D’ENERGIE AVEC BORNE

DE MISE A LA TERRE UTILISANT AU MOINS LE MEME CALIBRE QUE LES FILS DU MOTEUR. POUR

REDUIRE LE RISQUE DE CHOC ELECTRIQUE. COUPER LE COURANT AVANT DE TRAVAILLER PRES

OU SUR LE SYSTEM D’EAU. NE PAS UTILISER CE MOTEUR DANS UNE ZONE DE BAIGNADE.

ATENCION!

INFORMACION PARA EL INSTALADOR DE ESTE EQUIPO.

PARA LA INSTALACION DE ESTE EQUIPO, SE REQUIERE DE PERSONAL TECNICO CALIFICADO.

EL NO CUMPLIR CON LAS NORMAS ELECTRICAS NACIONALES Y LOCALES, ASI COMO CON LAS

RECOMENDACIONES DE FRANKLIN ELECTRIC DURANTE SU INSTALACION, PUEDE OCASIONAR,

UN CHOQUE ELECTRICO, PELIGRO DE UN INCENDIO, OPERACION DEFECTUOSA E INCLUSO LA

DESCOMPOSTURA DEL EQUIPO. LOS MANUALES DE INSTALACION Y PUESTA EN MARCHA DE

LOS EQUIPOS, ESTAN DISPONIBLES CON LOS DISTRIBUIDORES, FABRICANTES DE BOMBAS

O DIRECTAMENTE CON FRANKLIN ELECTRIC. PUEDE LLAMAR GRATUITAMENTE PARA MAYOR

INFORMACION AL TELEFONO 800-348-2420.

ADVERTENCIA

PUEDE OCURRIR UN CHOQUE ELECTRICO, SERIO O FATAL DEBIDO A UNA ERRONEA CONECCION

DEL MOTOR, DE LOS TABLEROS ELECTRICOS, DE LA TUBERIA, DE CUALQUIER OTRA PARTE

METALICA QUE ESTA CERCA DEL MOTOR O POR NO UTILIZAR UN CABLE PARA TIERRA DE CALIBRE

IGUAL O MAYOR AL DE LA ALIMENTACION. PARA REDUCIR EL RIESGO DE CHOQUE ELECTRIC,

DESCONECTAR LA ALIMENTACION ELECTRICA ANTES DE INICIAR A TRABAJAR EN EL SISTEMA

HIDRAULICO. NO UTILIZAR ESTE MOTOR EN ALBERCAS O AREAS EN DONDE SE PRACTIQUE

NATACION.

Franklin Electric is committed to provide customers with

defect free products through our program of continuous

improvement. Quality shall, in every case, take

precedence over quantity.

Commitment to Quality

Application – All Motors

Storage ...........................................................................3

Frequency of Starts .........................................................3

Mounting Position ...........................................................3

Transformer Capacity .....................................................4

Effects of Torque .............................................................4

Use of Engine Driven Generators ...................................5

Use of Check Valves .......................................................5

Well Diameters, Casing, Top Feeding, Screens .............6

Water Temperature and Flow .........................................6

Flow Inducer Sleeve .......................................................6

Head Loss Past Motor ....................................................7

Hot Water Applications ................................................7-8

Drawdown Seals .............................................................9

Grounding Control Boxes and Panels .............................9

Grounding Surge Arrestors .............................................9

Control Box and Panel Environment ...............................9

Equipment Grounding .....................................................9

Application – Single-Phase Motors

3-Wire Control Boxes ....................................................10

2-Wire Motor Solid State Controls ................................10

QD Relays (Solid State) ................................................10

Cable Selection 2-Wire or 3-Wire .................................11

Two Different Cable Sizes ............................................12

Single-Phase Motor Speciﬁ cations ...............................13

Single-Phase Motor Fuse Sizing ...................................14

Auxiliary Running Capacitors ........................................15

Buck-Boost Transformers .............................................15

Application – Three-Phase Motors

Cable Selection - 60 °C Three-Wire .........................16-17

Cable Selection - 60 °C Six-Wire ..................................18

Cable Selection - 75 °C Three-Wire .........................19-20

Cable Selection - 75 °C Six-Wire ..................................21

Three-Phase Motor Speciﬁ cations ...........................22-26

Three-Phase Motor Fuse Sizing ...................................27

Overload Protection .................................................28-30

Submersible Pump Installation Checklist (No. 3656)

Submersible Motor Installation Record (No. 2207)

Submersible Booster Installation Record (No. 3655)

Contents

SubMonitor ....................................................................31

Power Factor Correction ...............................................31

Three-Phase Starter Diagrams .....................................32

Three-Phase Power Unbalance ....................................33

Rotation and Current Unbalance ..................................33

Three-Phase Motor Lead Identiﬁ cation .........................34

Phase Converters .........................................................34

Reduced Voltage Starters .............................................35

Inline Booster Pump Systems ..................................35-38

Variable Speed Operation .............................................39

Installation – All Motors

Submersible Motors - Dimensions ................................40

Tightening Lead Connector Jam Nut ............................41

Pump to Motor Coupling ...............................................41

Shaft Height and Free End Play ...................................41

Submersible Leads and Cables ....................................41

Maintenance – All Motors

System Troubleshooting ..........................................42-43

Preliminary Tests ..........................................................44

Insulation Resistance ....................................................45

Resistance of Drop Cable .............................................45

Maintenance – Single-Phase Motors & Controls

Identiﬁ cation of Cables ..................................................46

Single-Phase Control Boxes .........................................46

Ohmmeter Tests ...........................................................47

QD Control Box Parts ...................................................48

Integral hp Control Box Parts ...................................49-50

Control Box Wiring Diagrams ...................................51-54

Maintenance – Electronic Products

Pumptec-Plus Troubleshooting During Installation .......55

Pumptec-Plus Troubleshooting After Installation ..........56

QD Pumptec and Pumptec Troubleshooting ................57

SubDrive/MonoDrive Troubleshooting ..........................58

SubMonitor Troubleshooting .........................................59

Subtrol-Plus Troubleshooting ...................................60-61

Submersible Motors

The submersible motor is a reliable, efﬁ cient and trouble-

free means of powering a pump. Its needs for a long

operational life are simple. They are:

1. A suitable operating environment

2. An adequate supply of electricity

3. An adequate ﬂ ow of cooling water over the motor

4. An appropriate pump load

All considerations of application, installation, and

maintenance of submersible motors relating to these four

areas are presented in this manual. Franklin Electric’s

web page, www.franklin-electric.com, should be checked

for the latest updates.

Application • Installation • Maintenance Manual

Application – All Motors

Franklin submersible motors are designed primarily for

operation in the vertical, shaft-up position.

During acceleration, the pump thrust increases as its

output head increases. In cases where the pump head

stays below its normal operating range during startup and

full speed condition, the pump may create upward thrust.

This creates upward thrust on the motor upthrust bearing.

This is an acceptable operation for short periods at each

start, but running continuously with upthrust will cause

excessive wear on the upthrust bearing.

With certain additional restrictions as listed in this section

and the Inline Booster Pump Systems sections of this

manual, motors are also suitable for operation in positions

Franklin Electric submersible motors are a water-

lubricated design. The ﬁ ll solution consists of a mixture

of deionized water and Propylene Glycol (a non-toxic

antifreeze). The solution will prevent damage from

freezing in temperatures to -40 °F (-40 °C); motors should

be stored in areas that do not go below this temperature.

The solution will partially freeze below 27 °F (-3 °C),

but no damage occurs. Repeated freezing and thawing

should be avoided to prevent possible loss of ﬁ ll solution.

There may be an interchange of ﬁ ll solution with well

water during operation. Care must be taken with motors

removed from wells during freezing conditions to

prevent damage.

When the storage temperature does not exceed

100 °F (37 °C), storage time should be limited to two

years. Where temperatures reach 100° to 130 °F, storage

time should be limited to one year.

Loss of a few drops of liquid will not damage the motor

as an excess amount is provided, and the ﬁ lter check

valve will allow lost liquid to be replaced by ﬁ ltered well

water upon installation. If there is reason to believe there

has been a considerable amount of leakage, consult the

factory for checking procedures.

The average number of starts per day over a period

of months or years inﬂ uences the life of a submersible

pumping system. Excessive cycling affects the life of

control components such as pressure switches, starters,

relays and capacitors. Rapid cycling can also cause

motor spline damage, bearing damage, and motor

overheating. All these conditions can lead to reduced

motor life.

The pump size, tank size and other controls should be

selected to keep the starts per day as low as practical for

longest life. The maximum number of starts per 24-hour

period is shown in table 3.

Motors should run a minimum of one minute to dissipate

heat build up from starting current. 6" and larger motors

should have a minimum of 15 minutes between starts or

starting attempts.

from shaft-up to shaft-horizontal. As the mounting position

becomes further from vertical and closer to horizontal, the

probability of shortened thrust bearing life increases. For

normal motor life expectancy with motor positions other

than shaft-up, follow these recommendations:

1. Minimize the frequency of starts, preferably to fewer

than 10 per 24-hour period. 6” and 8” motors should

have a minimum of 20 minutes between starts or

starting attempts

2. Do not use in systems which can run even for short

periods at full speed without thrust toward the motor.

Storage

Frequency of Starts

Mounting Position

MOTOR RATING MAXIMUM STARTS PER 24 HR PERIOD

HP KW SINGLE-PHASE THREE-PHASE

Up to 0.75 Up to 0.55 300 300

1 thru 5.5 0.75 thru 4 100 300

7.5 thru 30 5.5 thru 22 50 100

40 and over 30 and over - 100

Table 3 Number of Starts

Application – All Motors

Distribution transformers must be adequately sized to

satisfy the kVA requirements of the submersible motor.

When transformers are too small to supply the load, there

is a reduction in voltage to the motor.

Table 4 references the motor horsepower rating, single-

phase and three-phase, total effective kVA required, and

Transformer Capacity - Single-Phase or Three-Phase

NOTE: Standard kVA

ratings are shown. If power

company experience and

practice allows transformer

loading higher than

standard, higher loading

values may be used to

meet total effective kVA

required, provided correct

voltage and balance is

maintained.

the smallest transformer required for open or closed

three-phase systems. Open systems require larger

transformers since only two transformers are used.

Other loads would add directly to the kVA sizing

requirements of the transformer bank.

During starting of a submersible pump, the torque

developed by the motor must be supported through the

pump, delivery pipe or other supports. Most pumps rotate

in the direction which causes unscrewing torque on

right-handed threaded pipe or pump stages. All threaded

joints, pumps and other parts of the pump support system

must be capable of withstanding the maximum torque

repeatedly without loosening or breaking. Unscrewing

joints will break electrical cable and may cause loss of the

pump-motor unit.

To safely withstand maximum unscrewing torques with

a minimum safety factor of 1.5, tightening all theaded

joints to at least 10 lb-ft per motor horsepower is

recommended (table 4A). It may be necessary to tack

or strap weld pipe joints on high horsepower pumps,

especially at shallower settings.

Effects of Torque

Table 4A Torque Required (Examples)

MOTOR RATING TOTAL

EFFECTIVE

KVA

REQUIRED

SMALLEST KVA RATING-EACH TRANSFORMER

OPEN WYE

OR DELTA

2- TRANSFORMERS

CLOSED

WYE OR DELTA

3- TRANSFORMERS

HP KW

1.5 1.1 32 1

2 1.5 4 2 1.5

3 2.2 53 2

5 3.7 7.5 5 3

7.5 5.5 10 7.5 5

10 7.5 15 10 5

15 11 20 15 7.5

20 15 25 15 10

25 18.5 30 20 10

30 22 40 25 15

40 30 50 30 20

50 37 60 35 20

60 45 75 40 25

75 55 90 50 30

100 75 120 65 40

125 90 150 85 50

150 110 175 100 60

175 130 200 115 70

200 150 230 130 75

Table 4 Transformer Capacity

MOTOR RATING MINIMUM SAFE

TORQUE-LOAD

HP KW

1 hp & Less 0.75 kW & Less 10 lb-ft

20 hp 15 kW 200 lb-ft

75 hp 55 kW 750 lb-ft

200 hp 150 kW 2000 lb-ft

Application – All Motors

WARNING: To prevent accidental electrocution,

automatic or manual transfer switches must be used

any time a generator is used as standby or back

up on power lines. Contact power company for use

and approval.

Table 5 lists minimum generator sizes based on typical

80 °C rise continuous duty generators, with 35%

maximum voltage dip during starting, for Franklin’s three-

wire motors, single- or three-phase.

This is a general chart. The generator manufacturer

should be consulted whenever possible, especially on

larger sizes.

There are two types of generators available: externally

and internally regulated. Most are externally regulated.

They use an external voltage regulator that senses the

output voltage. As the voltage dips at motor start-up, the

regulator increases the output voltage of the generator.

Internally regulated (self-excited) generators have an

extra winding in the generator stator. The extra winding

senses the output current to automatically adjust the

output voltage.

Generators must be sized to deliver at least 65% of the

rated voltage during starting to ensure adequate starting

torque. Besides sizing, generator frequency is important

as the motor speed varies with the frequency (Hz). Due

to pump afﬁ nity laws, a pump running at 1 to 2 Hz below

motor nameplate frequency design will not meet its

performance curve. Conversely, a pump running at 1 to 2

Hz above may trip overloads.

Generator Operation

Always start the generator before the motor is started

and always stop the motor before the generator is shut

down. The motor thrust bearing may be damaged if

the generator is allowed to coast down with the motor

running. This same condition occurs when the generator

is allowed to run out of fuel.

Follow generator manufacturer’s recommendations for

de-rating at higher elevations or using natural gas.

It is recommended that one or more check valves always

be used in submersible pump installations. If the pump

does not have a built-in check valve, a line check valve

should be installed in the discharge line within 25 feet

of the pump and below the draw down level of the water

supply. For deeper settings, check valves should be

installed per the manufacturer’s recommendations. More

than one check valve may be required, but more than the

recommended number of check valves should not

be used.

Swing type check valves are not acceptable and should

never be used with submersible motors/pumps. Swing

type check valves have a slower reaction time which can

cause water hammer (see next page). Internal pump

check valves or spring loaded check valves close quickly

and help eliminate water hammer.

Check valves are used to hold pressure in the system

when the pump stops. They also prevent backspin, water

hammer and upthrust. Any of these can lead to early

pump or motor failure.

NOTE: Only positive sealing check valves should be

used in submersible installations. Although drilling the

check valves or using drain-back check valves may

prevent back spinning, they create upthrust and water

hammer problems.

A. Backspin - With no check valve or a failed check

valve, the water in the drop pipe and the water in the

system can ﬂ ow down the discharge pipe when the

motor stops. This can cause the pump to rotate in

a reverse direction. If the motor is started while it is

backspinning, an excessive force is placed across

the pump-motor assembly that can cause impeller

damage, motor or pump shaft breakage, excessive

bearing wear, etc.

B. Upthrust - With no check valve, a leaking check

valve, or drilled check valve, the unit starts under

Use of Engine Driven Generators - Single-Phase or Three-Phase

Table 5 Engine Driven Generators

MOTOR RATING MINIMUM RATING OF GENERATOR

HP KW EXTERNALLY REGULATED INTERNALLY REGULATED

KW KVA KW KVA

1/3 0.25 1.5 1.9 1.2 1.5

1/2 0.37 2 2.5 1.5 1.9

3/4 0.55 3 3.8 2 2.5

1 0.75 4 5.0 2.5 3.13

1.5 1.1 5 6.25 3 3.8

2 1.5 7.5 9.4 4 5

3 2.2 10 12.5 5 6.25

5 3.7 15 18.75 7.5 9.4

7.5 5.5 20 25.0 10 12.5

10 7.5 30 37.5 15 18.75

15 11 40 50 20 25

20 15 60 75 25 31

25 18.5 75 94 30 37.50

30 22 100 125 40 50

40 30 100 125 50 62.5

50 37 150 188 60 75

60 45 175 220 75 94

75 55 250 313 100 125

100 75 300 375 150 188

125 90 375 469 175 219

150 110 450 563 200 250

175 130 525 656 250 313

200 150 600 750 275 344

Use of Check Valves

NOTE: This chart applies to 3-wire or 3-phase

motors. For best starting of 2-wire motors, the

minimum generator rating is 50% higher than shown.

Application – All Motors

Franklin Electric submersible motors are designed to

operate with a cooling ﬂ ow of water over and around the

full length of the motor.

If the pump installation does not provide the minimum ﬂ ow

shown in table 6, a ﬂ ow inducer sleeve (ﬂ ow sleeve) must

be used. The conditions requiring a ﬂ ow sleeve are:

Wells – Large Diameter, Uncased, Top Feeding and Screened Sections

• Well diameter is too large to meet table 6

ﬂ ow requirements.

• Pump is in an open body of water.

• Pump is in a rock well or below the well casing.

• The well is “top-feeding” (a.k.a. cascading)

• Pump is set in or below screens or perforations.

Franklin Electric’s standard submersible motors, except

Hi-Temp designs (see note below), are designed to

operate up to maximum service factor horsepower in

water up to 86 °F (30 °C). A ﬂ ow of 0.25 ft/s for 4" motors

rated 3 hp and higher, and 0.5 ft/s for 6 and 8" motors is

required for proper cooling. Table 6 shows minimum ﬂ ow

rates, in gpm, for various well diameters and motor sizes.

If a standard motor is operated in water over 86 °F

(30 °C), water ﬂ ow past the motor must be increased to

maintain safe motor operating temperatures. See

HOT WATER APPLICATIONS on page 7.

NOTE: Franklin Electric offers a line of Hi-Temp motors

designed to operate in water at higher temperatures or

lower ﬂ ow conditions. Consult factory for details.

Water Temperature and Flow

0.25 ft/s = 7.62 cm/sec 0.50 ft/s = 15.24 cm/sec

1 inch = 2.54 cm

If the ﬂ ow rate is less than speciﬁ ed, then a

ﬂ ow inducer sleeve must be used. A ﬂ ow

sleeve is always required in an open body

of water. FIG. 1 shows a typical ﬂ ow inducer

sleeve construction.

EXAMPLE: A 6" motor and pump that delivers

60 gpm will be installed in a 10" well.

From table 6, 90 gpm would be required to

maintain proper cooling. In this case adding

an 8" or smaller ﬂ ow sleeve provides the

required cooling.

FIG. 1

WORM GEAR

CLAMPS

INTAKE

FLOW INDUCER

SLEEVE

SUBMERSIBLE

MOTOR

CENTERING BOLT

LOCK NUTS

INSIDE SLEEVE

CENTERING

BOLT HOLE

(3 REQUIRED)

BOTTOM END VIEW

NOTCH OUT

FOR CABLE

GUARD

SAW CUTS

CENTERING BOLTS

MUST BE LOCATED

ON MOTOR CASTING.

DO NOT LOCATE ON

STATOR SHELL.

Table 6 Required Cooling Flow

a zero head condition. This causes an uplifting or

upthrust on the impeller-shaft assembly in the pump.

This upward movement carries across the pump-

motor coupling and creates an upthrust condition in

the motor. Repeated upthrust can cause premature

failure of both the pump and the motor.

C. Water Hammer - If the lowest check valve is more

than 30 feet above the standing (lowest static)

water level, or a lower check valve leaks and the

check valve above holds, a vacuum is created in

the discharge piping. On the next pump start, water

moving at very high velocity ﬁ lls the void and strikes

the closed check valve and the stationary water in the

pipe above it, causing a hydraulic shock. This shock

can split pipes, break joints and damage the pump

and/or motor. Water hammer can often be heard or

felt. When discovered, the system should be shut

down and the pump installer contacted to correct

the problem.

MINIMUM GPM REQUIRED FOR MOTOR COOLING IN WATER UP TO 86 °F (30 °C).

CASING OR

SLEEVE ID

INCHES (MM)

4" MOTOR (3-10 HP)

0.25 FT/S

GPM (L/M)

6" MOTOR

0.50 FT/S

GPM (L/M)

8" MOTOR

0.50 FT/S

GPM (L/M)

4 (102) 1.2 (4.5) - -

5 (127) 7 (26.5) - -

6 (152) 13 (49) 9 (34) -

7 (178) 20 (76) 25 (95) -

8 (203) 30 (114) 45 (170) 10 (40)

10 (254) 50 (189) 90 (340) 55 (210)

12 (305) 80 (303) 140 (530) 110 (420)

14 (356) 110 (416) 200 (760) 170 (645)

16 (406) 150 (568) 280 (1060) 245 (930)

Flow Inducer Sleeve

Application – All Motors

Table 7 lists the approximate head loss due to ﬂ ow

between an average length motor and smooth casing or

ﬂ ow inducer sleeve.

Head Loss From Flow Past Motor

Hot Water Applications (Standard Motors)

Franklin Electric offers a line of Hi-Temp motors

which are designed to operate in water with

various temperatures up to 194 °F (90 °C) without

increased ﬂ ow. When a standard pump-motor

operates in water hotter than 86 °F (30 °C), a ﬂ ow

rate of at least 3 ft/s is required. When selecting

the motor to drive a pump in over 86 °F (30 °C)

water, the motor horsepower must be de-rated per

the following procedure.

1. Using table 7A, determine pump gpm required

for different well or sleeve diameters. If

necessary, add a ﬂ ow sleeve to obtain at least

3 ft/s ﬂ ow rate.

MOTOR DIAMETER 4" 4" 4" 6" 6" 6" 8" 8"

CASING ID IN INCHES (MM) 4 (102) 5 (127) 6 (152) 6 (152) 7 (178) 8 (203) 8.1 (206) 10 (254)

Flow Rate in gpm (l/m)

25 (95) 0.3 (.09)

50 (189) 1.2 (.37)

100 (378) 4.7 (1.4) 0.3 (.09) 1.7 (.52)

150 (568) 10.2 (3.1) 0.6 (.18) 0.2 (.06) 3.7 (1.1)

200 (757) 1.1 (.34) 0.4 (.12) 6.3 (1.9) 0.5 (.15) 6.8 (2.1)

250 (946) 1.8 (.55) 0.7 (.21) 9.6 (2.9) 0.8 (.24) 10.4 (3.2)

300 (1136) 2.5 (.75) 1.0 (.30) 13.6 (4.1) 1.2 (.37) 0.2 (.06) 14.6 (4.5)

400 (1514) 23.7 (7.2) 2.0 (.61) 0.4 (.12) 24.6 (7.5)

500 (1893) 3.1 (.94) 0.7 (.21) 37.3 (11.4) 0.6 (0.2)

600 (2271) 4.4 (1.3) 1.0 (.30) 52.2 (15.9) 0.8 (0.3)

800 (3028) 1.5 (0.5)

1000 (3785) 2.4 (0.7)

Table 7 Head Loss in Feet (Meters) at Various Flow Rates

CASING OR

SLEEVE ID

4" HIGH

THRUST MOTOR 6" MOTOR 8" MOTOR

INCHES (MM) GPM (L/M) GPM (L/M) GPM (L/M)

4 (102) 15 (57)

5 (127) 80 (303)

6 (152) 160 (606) 52 (197)

7 (178) 150 (568)

8 (203) 260 (984) 60 (227)

10 (254) 520 (1970) 330 (1250)

12 (305) 650 (2460)

14 (356) 1020 (3860)

16 (406) 1460 (5530)

Table 7A Minimum gpm (l/m) Required for

3 ft/s (.91 m/sec) Flow Rate

Application – All Motors

EXAMPLE: A 6" pump end requiring 39 hp input will

pump 124 °F water in an 8" well at a delivery rate of 140

gpm. From table 7A, a 6" ﬂ ow sleeve will be required to

increase the ﬂ ow rate to at least 3 ft/s

Using table 8, the 1.62 heat factor multiplier is selected

because the hp required is over 30 hp and water

3. Multiply the pump horsepower required by

the heat factor multiplier from table 8.

4. Select a rated hp motor on table 8A whose

Service Factor Horsepower is at least the

value calculated in Item 3.

Hot Water Applications - Example

temperature is above 122 °F. Multiply 39 hp x 1.62

(multiplier), which equals 63.2 hp. This is the minimum

rated service factor horsepower usable at 39 hp in 124 °F.

Using table 8A, select a motor with a rated service factor

horsepower above 63.2 hp. A 60 hp motor has a service

factor horsepower of 69, so a 60 hp motor may be used.

Table 8 Heat Factor Multiplier at 3 ft/s (.91 m/sec) Flow Rate

Table 8A Service Factor Horsepower

2. Determine pump horsepower required

from the pump manufacturer’s curve.

FIG. 2 MANUFACTURER’S PUMP CURVE

0 5 10 15 20 25 30 35 40 45 50

Gallons Per Minute

Brake Horsepower

EXAMPLE

MAXIMUM

WATER TEMPERATURE

1/3 - 5 HP

.25 - 3.7 KW

7 1/2 - 30 HP

5.5 - 22 KW

OVER 30 HP

OVER 22 KW

140 °F (60 °C) 1.25 1.62 2.00

131 °F (55 °C) 1.11 1.32 1.62

122 °F (50 °C) 1.00 1.14 1.32

113 °F (45 °C) 1.00 1.00 1.14

104 °F (40 °C) 1.00 1.00 1.00

95 °F (35 °C) 1.00 1.00 1.00

HP KW SFHP HP KW SFHP HP KW SFHP HP KW SFHP

1/3 0.25 0.58 3 2.2 3.45 25 18.5 28.75 100 75 115.00

1/2 0.37 0.80 5 3.7 5.75 30 22.0 34.50 125 90 143.75

3/4 0.55 1.12 7.5 5.5 8.62 40 30.0 46.00 150 110 172.50

1 0.75 1.40 10 7.5 11.50 50 37.0 57.50 175 130 201.25

1.5 1.10 1.95 15 11.0 17.25 60 45.0 69.00 200 150 230.00

2 1.50 2.50 20 15.0 23.00 75 55.0 86.25

Application – All Motors

The primary purpose of grounding the metal drop pipe

and/or metal well casing in an installation is safety. It is

done to limit the voltage between nonelectrical (exposed

metal) parts of the system and ground, thus minimizing

dangerous shock hazards. Using wire at least the size of

the motor cable wires provides adequate current-carrying

capability for any ground fault that might occur. It also

provides a low resistance path to ground, ensuring that

the current to ground will be large enough to trip any

overcurrent device designed to detect faults (such as a

ground fault circuit interrupter, or GFCI).

Normally, the ground wire to the motor would provide the

Franklin Electric control boxes meet UL requirements for

NEMA Type 3R enclosures. They are suitable for indoor

and outdoor applications within temperatures of +14 °F

(-10 °C) to 122 °F (50 °C). Operating control boxes below

+14 °F can cause reduced starting torque and loss of

overload protection when overloads are located in

control boxes.

Control boxes and panels should never be mounted in

direct sunlight or high temperature locations. This will

cause shortened capacitor life and unnecessary tripping

Control Box and Panel Environment

of overload protectors. A ventilated enclosure painted

white to reﬂ ect heat is recommended for an outdoor, high

temperature location.

A damp well pit, or other humid location, accelerates

component failure from corrosion.

Control boxes with voltage relays are designed for

vertical upright mounting only. Mounting in other

positions will affect the operation of the relay.

Allowable motor temperature is based on atmospheric

pressure or higher surrounding the motor. “Drawdown

seals,” which seal the well to the pump above its intake

Grounding Surge Arrestors

An above ground surge arrestor must be grounded,

metal to metal, all the way to the lowest draw down water

strata for the surge arrestor to be effective. GROUNDING

THE ARRESTOR TO THE SUPPLY GROUND OR TO

A DRIVEN GROUND ROD PROVIDES LITTLE OR NO

SURGE PROTECTION FOR THE MOTOR.

to maximize delivery, are not recommended, since the

suction created can be lower than atmospheric pressure.

Equipment Grounding

primary path back to the power supply ground for any

ground fault. There are conditions, however, where the

ground wire connection could become compromised.

One such example would be the case where the water

in the well is abnormally corrosive or aggressive. In this

example, a grounded metal drop pipe or casing would

then become the primary path to ground. However,

the many installations that now use plastic drop pipes

and/or casings require further steps to be taken for

safety purposes, so that the water column itself does not

become the conductive path to ground.

When an installation has abnormally corrosive water

AND the drop pipe or casing is plastic, Franklin Electric

recommends the use of a GFCI with a 10 mA set-point.

In this case, the motor ground wire should be routed

through the current-sensing device along with the motor

power leads. Wired this way, the GFCI will trip only when

a ground fault has occurred AND the motor ground wire

is no longer functional.

WARNING: Serious or fatal electrical shock may

result from failure to connect the motor, control

enclosures, metal plumbing and all other metal

near the motor or cable to the power supply ground

terminal using wire no smaller than motor cable wires.

WARNING: Failure to ground the control frame can

result in a serious or fatal electrical shock hazard.

The National Electrical Code requires that the control box

or panel-grounding terminal always be connected to supply

ground. If the circuit has no grounding conductor and no

metal conduit from the box to supply panel, use a wire at

least as large as line conductors and connect as required

by the National Electrical Code, from the grounding terminal

to the electrical supply ground.

Drawdown Seals

Grounding Control Boxes and Panels

Application – Single-Phase Motors

BIAC Switch Operation

When power is applied the bi-metal switch contacts are

closed, so the triac is conducting and energizes the start

winding. As rpm increases, the voltage in the sensor coil

generates heat in the bi-metal strip, causing the bi-metal

strip to bend and open the switch circuit. This removes

the starting winding and the motor continues to run on

the main winding alone.

Approximately 5 seconds after power is removed from

the motor, the bi-metal strip cools sufﬁ ciently to return

to its closed position and the motor is ready for the next

start cycle.

Rapid Cycling

The BIAC starting switch will reset within approximately 5

seconds after the motor is stopped. If an attempt is made

2-Wire Motor Solid State Controls

to restart the motor before the starting switch has reset,

the motor may not start; however, there will be current in

the main winding until the overload protector interrupts

the circuit. The time for the protector to reset is longer

than the reset of the starting switch. Therefore, the start

switch will have closed and the motor will operate.

A waterlogged tank will cause fast cycling. When a

waterlogged condition does occur, the user will be

alerted to the problem during the off time (overload reset

time) since the pressure will drop drastically. When the

waterlogged tank condition is detected, the condition

should be corrected to prevent nuisance tripping of the

overload protector.

Bound Pump (Sandlocked)

When the motor is not free to turn, as with a sandlocked

pump, the BIAC switch creates a “reverse impact

torque” in the motor in either direction. When the sand is

dislodged, the motor will start and operate in the

correct direction.

There are two elements in the relay: a reed switch and

a triac. The reed switch consists of two tiny rectangular

blade-type contacts, which bend under magnetic ﬂ ux. It

is hermetically sealed in glass and is located within a coil,

which conducts line current. When power is supplied to

the control box, the main winding current passing through

the coil immediately closes the reed switch contacts.

This turns on the triac, which supplies voltage to the start

winding, thus starting the motor.

Once the motor is started, the operation of the QD relay

is an interaction between the triac, the reed switch and

the motor windings. The solid state switch senses motor

speed through the changing phase relationship between

start winding current and line current. As the motor

approaches running speed, the phase angle between

the start current and the line current becomes nearly

in phase. At this point, the reed switch contacts open,

turning off the triac. This removes voltage from the start

winding and the motor continues to run on the main

winding only. With the reed switch contacts open and

the triac turned off, the QD relay is ready for the next

starting cycle.

Single-phase three-wire submersible motors require the

use of control boxes. Operation of motors without control

boxes or with incorrect boxes can result in motor failure

and voids warranty.

Control boxes contain starting capacitors, a starting

relay, and, in some sizes, overload protectors, running

capacitors and contactors.

Ratings through 1 hp may use either a Franklin Electric

solid state QD or a potential (voltage) type starting relay,

while larger ratings use potential relays.

Potential (Voltage) Relays

Potential relays have normally closed contacts. When

power is applied, both start and main motor windings

are energized, and the motor starts. At this instant, the

voltage across the start winding is relatively low and not

3-Wire Control Boxes

enough to open the contacts of the relay.

As the motor accelerates, the increasing voltage across

the start winding (and the relay coil) opens the relay

contacts. This opens the starting circuit and the motor

continues to run on the main winding alone, or the main

plus run capacitor circuit. After the motor is started the

relay contacts remain open.

CAUTION: The control box and motor are two pieces

of one assembly. Be certain that the control box and

motor hp and voltage match. Since a motor is designed

to operate with a control box from the same

manufacturer, we can promise warranty coverage

only when a Franklin control box is used with a

Franklin motor.

CAUTION: Restarting the motor within 5 seconds

after power is removed may cause the motor overload

to trip.

QD Relays (Solid State)

Application – Single-Phase Motors

75 °C

2 or 3-Wire Cable, 60 Hz (Service Entrance to Motor - Maximum Length In Feet)

Lengths in BOLD only meet the US National Electrical

Code ampacity requirements for individual conductors

60 °C or 75 °C in free air or water, not in magnetic

enclosures, conduit or direct buried.

Lengths NOT in bold meet the NEC ampacity

requirements for either individual conductors or jacketed

60 °C or 75 °C cable and can be in conduit or direct

buried. Flat molded and web/ribbon cable are considered

jacketed cable.

If any other cable is used, the NEC and local codes

should be observed.

Cable lengths in tables 11 & 11A allow for a 5% voltage

drop running at maximum nameplate amperes. If 3%

voltage drop is desired, multiply table 11 and 11A lengths

by 0.6 to get maximum cable length.

The portion of the total cable length, which is between

the supply and single-phase control box with a line

contactor, should not exceed 25% of total maximum

allowable to ensure reliable contactor operation. Single-

phase control boxes without line contactors may be

connected at any point in the total cable length.

Tables 11 & 11A are based on copper wire. If aluminum

wire is used, it must be two sizes larger than copper wire

and oxidation inhibitors must be used on connections.

EXAMPLE: If tables 11 & 11A call for #12 copper wire,

#10 aluminum wire would be required.

Contact Franklin Electric for 90 °C cable lengths. See

pages 15, 48, and 49 for applications using 230 V motors

on 208 V power systems.

MOTOR RATING 60 °C INSULATION - AWG COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000

115 1/2 .37 100 160 250 390 620 960 1190 1460 1780 2160 2630 3140 3770

230

1/2 .37 400 650 1020 1610 2510 3880 4810 5880 7170 8720

3/4 .55 300 480 760 1200 1870 2890 3580 4370 5330 6470 7870

1 .75 250 400 630 990 1540 2380 2960 3610 4410 5360 6520

1.5 1.1 190 310 480 770 1200 1870 2320 2850 3500 4280 5240

2 1.5 150 250 390 620 970 1530 1910 2360 2930 3620 4480

3 2.2 120 190 300 470 750 1190 1490 1850 2320 2890 3610

5 3.7 00

180 280 450 710 890 1110 1390 1740 2170 2680

7.5 5.5 000

200 310 490 610 750 930 1140 1410 1720

10 7.5 0000

250 390 490 600 750 930 1160 1430 1760

15 11 0000

170 270 340 430 530 660 820 1020 1260

Table 11

MOTOR RATING 75 °C INSULATION - AWG COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000

115 1/2 .37 100 160 250 390 620 960 1190 1460 1780 2160 2630 3140 3770

230

1/2 .37 400 650 1020 1610 2510 3880 4810 5880 7170 8720

3/4 .55 300 480 760 1200 1870 2890 3580 4370 5330 6470 7870 9380

1 .75 250 400 630 990 1540 2380 2960 3610 4410 5360 6520 7780 9350

1.5 1.1 190 310 480 770 1200 1870 2320 2850 3500 4280 5240 6300 7620

2 1.5 150 250 390 620 970 1530 1910 2360 2930 3620 4480 5470 6700

3 2.2 120 190 300 470 750 1190 1490 1850 2320 2890 3610 4470 5550

5 3.7 0110 180 280 450 710 890 1110 1390 1740 2170 2680 3330

7.5 5.5 00

120 200 310 490 610 750 930 1140 1410 1720 2100

10 7.5 000

160 250 390 490 600 750 930 1160 1430 1760

15 11 0000

170 270 340 430 530 660 820 1020 1260

Table 11A

1 Foot = .3048 Meter

60 °C

Application – Single-Phase Motors

3 hp, 230 V

Single-Phase Motor

310 ft #6 AWG

(41.3% of allowable cable)

160 ft #10 AWG

(53.3% of allowable cable)

Depending on the installation, any number of

combinations of cable may be used.

For example, in a replacement/upgrade installation, the

well already has 160 feet of buried #10 cable between

the service entrance and the wellhead. A new 3 hp,

230-volt, single-phase motor is being installed to replace

a smaller motor. The question is: Since there is already

160 feet of #10 AWG installed, what size cable is

required in the well with a 3 hp, 230-volt, single-phase

motor setting at 310 feet?

From tables 11 & 11A, a 3 hp motor can use up to 300

feet of #10 AWG cable.

The application has 160 feet of #10 AWG copper

wire installed.

Using the formula below, 160 feet (actual) ÷ 300 feet

(max allowable) is equal to 0.533. This means 53.3%

(0.533 x 100) of the allowable voltage drop or loss, which

is allowed between the service entrance and the motor,

occurs in this wire. This leaves us 46.7% (1.00 - 0.533

= 0.467) of some other wire size to use in the remaining

310 feet “down hole” wire run.

The table shows #8 AWG copper wire is good for 470

feet. Using the formula again, 310 feet (used) ÷ 470 feet

(allowed) = 0.660; adding this to the 0.533 determined

earlier; 0.533 + 0.660 = 1.193. This combination is

greater than 1.00, so the voltage drop will not meet US

National Electrical Code recommendations.

Tables 11 & 11A show #6 AWG copper wire is good

for 750 feet. Using the formula, 310 ÷ 750 = 0.413, and

using these numbers, 0.533 + 0.413 = 0.946, we ﬁ nd this

is less than one and will meet the NEC recommended

voltage drop.

This works for two, three or more combinations of wire

and it does not matter which size wire comes ﬁ rst in

the installation.

EXAMPLE: 3 hp, 230-Volt, Single-Phase Motor

Two or More Different Cable Sizes Can Be Used

FIG. 3

Formula: +=1.00

Actual Length

Max Allowed

Actual Length

Max Allowed

Application – Single-Phase Motors

(1) Main winding - yellow to black

Start winding - yellow to red

(2) Y = Yellow lead - line amps

B = Black lead - main winding amps

R = Red lead - start or auxiliary winding amps

(3) Control Boxes date coded 02C and older have

35 MFD run capacitors. Current values should

be Y14.0 @ FL and Y17.0 @ SF Load.

B12.2 B14.5

R4.7 R4.5

(4) Control Boxes date coded 01M and older have

60 MFD run capacitors and the current values on

a 4" motor will be Y23.0 @ FL - Y27.5 @ SF Load.

B19.1 B23.2

R8.0 R7.8

(5) Control Boxes date coded 01M and older have

60 MFD run capacitors and the current values on

a 6" motor will be Y23.0 @ FL -Y27.5 @ SF Load.

B18.2 B23.2

R8.0 R7.8

Performance is typical, not guaranteed, at speciﬁ ed voltages and speciﬁ ed capacitor values. Performance at voltage

ratings not shown is similar, except amps vary inversely with voltage.

TYPE

MOTOR

MODEL

PREFIX

RATING FULL

LOAD

MAXIMUM

(S.F. LOAD)

WINDING (1)

RES. IN OHMS EFFICIENCY % POWER

FACTOR % LOCKED

ROTOR

AMPS

KVA

CODE

HP KW VOLTS HZ S.F. (2)

AMPS WATTS (2)

AMPS WATTS M=MAIN RES.

S=START RES. S.F. F.L. S.F. F.L.

4" 2-WIRE

244504 1/2 0.37 115 60 1.6 10.0 670 12.0 960 1.0-1.3 62 56 73 58 64.4 R

244505 1/2 0.37 230 60 1.6 5.0 670 6.0 960 4.2-5.2 62 56 73 58 32.2 R

244507 3/4 0.55 230 60 1.5 6.8 940 8.0 1310 3.0-3.6 64 59 74 62 40.7 N

244508 1 0.75 230 60 1.4 8.2 1210 9.8 1600 2.2-2.7 65 62 74 63 48.7 N

244309 1.5 1.1 230 60 1.3 10.6 1700 13.1 2180 1.5-1.9 67 66 80 73 66.6 M

4" 3-WIRE

214504 1/2 0.37 115 60 1.6

Y10.0

B10.0

670

Y12.0

B12.0

960 M1.0-1.3

S4.1-5.1 62 56 73 58 50.5 M

214505 1/2 0.37 230 60 1.6

Y5.0

B5.0

670

Y6.0

B6.0

960 M4.2-5.2

S16.7-20.5 62 56 73 58 23 M

214507 3/4 0.55 230 60 1.5

Y6.8

B6.8

940

Y8.0

B8.0

1310 M3.0-3.6

S10.7-13.1 64 59 74 62 34.2 M

214508 1 0.75 230 60 1.4

Y8.2

B8.2

1210

Y9.8

B9.8

1600 M2.2-2.7

S9.9-12.1 65 62 74 63 41.8 L

4" 3-WIRE W/CRC CB

214505 1/2 0.37 230 60 1.6

Y3.6

B3.7

R2.0

655

Y4.3

B4.0

R2.0

890 M4.2-5.2

S16.7-20.5 67 57 90 81 23 M

214507 3/4 0.55 230 60 1.5

Y4.9

B5.0

R3.2

925

Y5.7

B5.2

R3.1

1220 M3.0-3.6

S10.7-13.1 69 60 92 84 34.2 M

214508 1 0.75 230 60 1.4

Y6.0

B5.7

R3.4

1160

Y7.1

B6.2

R3.3

1490 M2.2-2.7

S9.9-12.1 70 64 92 86 41.8 L

4" 3-WIRE

214508

W/1-

1.5 CB

1 0.75 230 60 1.4

Y6.6

B6.6

R1.3

1130

Y8.0

B7.9

R1.3

1500 M2.2-2.7

S9.9-12.1 70 66 82 72 43 L

224300 1.5 1.1 230 60 1.3

Y10.0

B9.9

R1.3

1660

Y11.5

B11.0

R1.3

2100 M1.7-2.2

S8.0-9.7 69 67 82 74 52 J

224301 2 1.5 230 60 1.25

Y10.0

B9.3

R2.6

2060

Y13.2

B11.9

R2.6

2610 M1.8-2.3

S5.8-7.2 71 73 95 93 51 G

224302

(3) 3 2.2 230 60 1.15

Y14.0

B11.2

R6.1

2940

Y17.0

B12.6

R6.0

3350 M1.0-1.5

S3.5-4.4 77 76 97 97 83.5 H

224303

(4) 5 3.7 230 60 1.15

Y23.0

B15.9

R11.0

4920

Y27.5

B19.1

R10.8

5620 M.68-1.0

S1.8-2.2 76 76 100 100 121 F

226110

(5) 5 3.7 230 60 1.15

Y23.0

B14.3

R10.8

4910

Y27.5

B17.4

R10.5

5570 M.55-.68

S1.3-1.7 77 76 100 99 99 E

226111 7.5 5.5 230 60 1.15

Y36.5

B34.4

R5.5

7300

Y42.1

B40.5

R5.4

8800 M.36-.50

S.88-1.1 73 74 91 90 165 F

226112 10 7.5 230 60 1.15

Y44.0

B39.5

R9.3

9800

Y51.0

B47.5

R8.9

11300 M.27-.33

S.80-.99 76 77 96 96 204 E

226113 15 11 230 60 1.15

Y62.0

B52.0

R17.5

13900

Y75.0

B62.5

R16.9

16200 M.17-.22

S.68-.93 79 80 97 98 303 E

Table 13 Single-Phase Motor Speciﬁ cations (60 Hz) 3450 rpm

Application – Single-Phase Motors

Table 14 Single-Phase Motor Fuse Sizing

TYPE

MOTOR

MODEL

PREFIX

RATING

CIRCUIT BREAKERS OR FUSE AMPS CIRCUIT BREAKERS OR FUSE AMPS

(MAXIMUM PER NEC) (TYPICAL SUBMERSIBLE)

STANDARD

FUSE

DUAL ELEMENT

TIME DELAY

FUSE

CIRCUIT

BREAKER

STANDARD

FUSE

DUAL ELEMENT

TIME DELAY

FUSE

CIRCUIT

BREAKER

HP KW VOLTS

4" 2-WIRE

244504 1/2 0.37 115 35 20 30 30 15 30

244505 1/2 0.37 230 20 10 15 15 8 15

244507 3/4 0.55 230 25 15 20 20 10 20

244508 1 0.75 230 30 20 25 25 11 25

244309 1.5 1.1 230 35 20 30 35 15 30

4" 3-WIRE

214504 1/2 0.37 115 35 20 30 30 15 30

214505 1/2 0.37 230 20 10 15 15 8 15

214507 3/4 0.55 230 25 15 20 20 10 20

214508 1 0.75 230 30 20 25 25 11 25

4" 3-WIRE W/CRC CB

214505 1/2 0.37 230 20 10 15 15 8 15

214507 3/4 0.55 230 25 15 20 20 10 20

214508 1 0.75 230 30 20 25 25 11 25

4" 3-WIRE

214508

1 0.75 230 30 20 25 25 11 25

W/ 1-1.5 CB

224300 1.5 1.1 230 35 20 30 30 15 30

224301 2 1.5 230 30 20 25 30 15 25

224302 3 2.2 230 45 30 40 45 20 40

224303 5 3.7 230 80 45 60 70 30 60

226110 5 3.7 230 80 45 60 70 30 60

226111 7.5 5.5 230 125 70 100 110 50 100

226112 10 7.5 230 150 80 125 150 60 125

226113 15 11 230 200 125 175 200 90 175

Application – Single-Phase Motors

Buck-Boost transformers are power transformers, not control transformers. They may also be used to lower voltage

when the available power supply voltage is too high.

When the available power supply voltage is not within

the proper range, a buck-boost transformer is often

used to adjust voltage to match the motor. The most

common usage on submersible motors is boosting a

208 volt supply to use a standard 230 volt single-phase

submersible motor and control. While tables to give a

wide range of voltage boost or buck are published by

transformer manufacturers, the following table shows

Franklin’s recommendations. The table, based on

boosting the voltage 10%, shows the minimum rated

transformer kVA needed and the common

standard transformer kVA.

(1) Do not add running capacitors to 1/3 through 1 hp control boxes, which use solid state switches or QD relays.

Adding capacitors will cause switch failure. If the control box is converted to use a voltage relay, the speciﬁ ed

running capacitance can be added.

Table 15A Buck-Boost Transformer Sizing

Table 15 Auxiliary Capacitor Sizing

MOTOR RATING NORMAL RUNNING

CAPACITOR(S)

AUXILIARY RUNNING CAPACITORS FOR

NOISE REDUCTION S.F. AMPS WITH RUN CAP

HP VOLTS MFD MFD MIN VOLTS FRANKLIN PART YELLOW BLACK RED

1/2 115 0 60(1) 370 TWO 155327101 8.4 7.0 4.0

1/2

230

0 15(1) 370 ONE 155328101 4.2 3.5 2.0

3/4 0 20(1) 370 ONE 155328103 5.8 5.0 2.5

10 25(1) 370 ONE EA. 155328101

155328102 7.1 5.6 3.4

1.5 10 20 370 ONE 155328103 9.3 7.5 4.4

220 10 370 ONE 155328102 11.2 9.2 3.8

345 NONE 370 17.0 12.6 6.0

580 NONE 370 27.5 19.1 10.8

7.5 45 45 370 ONE EA. 155327101

155328101 37.0 32.0 11.3

10 70 30 370 ONE 155327101 49.0 42.0 13.0

15 135 NONE 75.0 62.5 16.9

MOTOR HP 1/3 1/2 3/4 1 1.5 2 3 5 7.5 10 15

LOAD KVA 1.02 1.36 1.84 2.21 2.65 3.04 3.91 6.33 9.66 11.70 16.60

MINIMUM XFMR KVA 0.11 0.14 0.19 0.22 0.27 0.31 0.40 0.64 0.97 1.20 1.70

STANDARD XFMR KVA 0.25 0.25 0.25 0.25 0.50 0.50 0.50 0.75 1.00 1.50 2.00

Auxiliary Running Capacitors

Buck-Boost Transformers

Added capacitors must be connected across “Red” and

“Black” control box terminals, in parallel with any existing

running capacitors. The additional capacitor(s) should

be mounted in an auxiliary box. The values of additional

running capacitors most likely to reduce noise are given

below. The tabulation gives the max S.F. amps normally

in each lead with the added capacitor.

Although motor amps decrease when auxiliary

run capacitance is added, the load on the motor

does not. If a motor is overloaded with normal

capacitance, it still will be overloaded with auxiliary

run capacitance, even though motor amps may be

within nameplate values.

Application – Three-Phase Motors

Continued on page 17

60 °C

MOTOR RATING 60 °C INSULATION - AWG COPPER WIRE SIZE MCM COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000 250 300 350 400 500

200 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 710 1140 1800 2840 4420

3/4 0.55 510 810 1280 2030 3160

1 0.75 430 690 1080 1710 2670 4140 5140

1.5 1.1 310 500 790 1260 1960 3050 3780

2 1.5 240 390 610 970 1520 2360 2940 3610 4430 5420

3 2.2 180 290 470 740 1160 1810 2250 2760 3390 4130

5 3.7 110 170 280 440 690 1080 1350 1660 2040 2490 3050 3670 4440 5030

7.5 5.5 0 0 200 310 490 770 960 1180 1450 1770 2170 2600 3150 3560

10 7.5 000

230 370 570 720 880 1090 1330 1640 1970 2390 2720 3100 3480 3800 4420

15 11 000

160 250 390 490 600 740 910 1110 1340 1630 1850 2100 2350 2570 2980

20 15 0000

190 300 380 460 570 700 860 1050 1270 1440 1650 1850 2020 2360

25 18.5 00000

240 300 370 460 570 700 840 1030 1170 1330 1500 1640 1900

30 22 000000

250 310 380 470 580 700 850 970 1110 1250 1360 1590

230 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 930 1490 2350 3700 5760 8910

3/4 0.55 670 1080 1700 2580 4190 6490 8060 9860

1 0.75 560 910 1430 2260 3520 5460 6780 8290

1.5 1.1 420 670 1060 1670 2610 4050 5030 6160 7530 9170

2 1.5 320 510 810 1280 2010 3130 3890 4770 5860 7170 8780

3 2.2 240 390 620 990 1540 2400 2980 3660 4480 5470 6690 8020 9680

5 3.7 140 230 370 590 920 1430 1790 2190 2690 3290 4030 4850 5870 6650 7560 8460 9220

7.5 5.5 0160 260 420 650 1020 1270 1560 1920 2340 2870 3440 4160 4710 5340 5970 6500 7510

10 7.5 00

190 310 490 760 950 1170 1440 1760 2160 2610 3160 3590 4100 4600 5020 5840

15 11 000

210 330 520 650 800 980 1200 1470 1780 2150 2440 2780 3110 3400 3940

20 15 0000

250 400 500 610 760 930 1140 1380 1680 1910 2180 2450 2680 3120

25 18.5 00000

320 400 500 610 750 920 1120 1360 1540 1760 1980 2160 2520

30 22 00000

260 330 410 510 620 760 930 1130 1280 1470 1650 1800 2110

380 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 2690 4290 6730

3/4 0.55 2000 3190 5010 7860

1 0.75 1620 2580 4060 6390 9980

1.5 1.1 1230 1970 3100 4890 7630

2 1.5 870 1390 2180 3450 5400 8380

3 2.2 680 1090 1710 2690 4200 6500 8020 9830

5 3.7 400 640 1010 1590 2490 3870 4780 5870 7230 8830

7.5 5.5 270 440 690 1090 1710 2640 3260 4000 4930 6010 7290 8780

10 7.5 200 320 510 800 1250 1930 2380 2910 3570 4330 5230 6260 7390 8280 9340

15 11 00

370 590 920 1430 1770 2170 2690 3290 4000 4840 5770 6520 7430 8250 8990

20 15 000

440 700 1090 1350 1670 2060 2530 3090 3760 4500 5110 5840 6510 7120 8190

25 18.5 000

360 570 880 1100 1350 1670 2050 2510 3040 3640 4130 4720 5250 5740 6590

30 22 0000

470 730 910 1120 1380 1700 2080 2520 3020 3430 3920 4360 4770 5490

40 30 00000

530 660 820 1010 1240 1520 1840 2200 2500 2850 3170 3470 3990

50 37 000000

540 660 820 1000 1220 1480 1770 2010 2290 2550 2780 3190

60 45 0000000

560 690 850 1030 1250 1500 1700 1940 2150 2350 2700

75 55 00000000

570 700 860 1050 1270 1440 1660 1850 2030 2350

100 75 000000000

510 630 760 910 1030 1180 1310 1430 1650

125 90 00000000000

620 740 840 950 1060 1160 1330

150 110 000000000000

620 700 790 880 960 1090

175 130 0000000000000

650 750 840 920 1070

200 150 0000000000000 0630 700 760 880

Lengths in BOLD only meet the US National Electrical Code ampacity requirements for individual conductors in free air

or water. Lengths NOT in bold meet NEC ampacity requirements for either individual conductors or jacketed cable. See

page 11 for additional details.

Table 16 Three-Phase 60 °C Cable, 60 Hz (Service Entrance to Motor) Maximum Length in Feet

Application – Three-Phase Motors

60 °C

MOTOR RATING 60 °C INSULATION - AWG COPPER WIRE SIZE MCM COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000 250 300 350 400 500

460 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 3770 6020 9460

3/4 0.55 2730 4350 6850

1 0.75 2300 3670 5770 9070

1.5 1.1 1700 2710 4270 6730

2 1.5 1300 2070 3270 5150 8050

3 2.2 1000 1600 2520 3970 6200

5 3.7 590 950 1500 2360 3700 5750

7.5 5.5 420 680 1070 1690 2640 4100 5100 6260 7680

10 7.5 310 500 790 1250 1960 3050 3800 4680 5750 7050

15 11 0340 540 850 1340 2090 2600 3200 3930 4810 5900 7110

20 15 00

410 650 1030 1610 2000 2470 3040 3730 4580 5530

25 18.5 000

530 830 1300 1620 1990 2450 3010 3700 4470 5430

30 22 000

430 680 1070 1330 1640 2030 2490 3060 3700 4500 5130 5860

40 30 0000

500 790 980 1210 1490 1830 2250 2710 3290 3730 4250

50 37 00000

640 800 980 1210 1480 1810 2190 2650 3010 3420 3830 4180 4850

60 45 00000

540 670 830 1020 1250 1540 1850 2240 2540 2890 3240 3540 4100

75 55 0000000

680 840 1030 1260 1520 1850 2100 2400 2700 2950 3440

100 75 00000000

620 760 940 1130 1380 1560 1790 2010 2190 2550

125 90 0000000000

740 890 1000 1220 1390 1560 1700 1960

150 110 00000000000

760 920 1050 1190 1340 1460 1690

175 130 000000000000

810 930 1060 1190 1300 1510

200 150 0000000000000

810 920 1030 1130 1310

575 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 5900 9410

3/4 0.55 4270 6810

1 0.75 3630 5800 9120

1.5 1.1 2620 4180 6580

2 1.5 2030 3250 5110 8060

3 2.2 1580 2530 3980 6270

5 3.7 920 1480 2330 3680 5750

7.5 5.5 660 1060 1680 2650 4150

10 7.5 490 780 1240 1950 3060 4770 5940

15 11 330 530 850 1340 2090 3260 4060

20 15 0410 650 1030 1610 2520 3140 3860 4760 5830

25 18.5 00

520 830 1300 2030 2530 3110 3840 4710

30 22 00

430 680 1070 1670 2080 2560 3160 3880 4770 5780 7030 8000

40 30 000

500 790 1240 1540 1900 2330 2860 3510 4230 5140 5830

50 37 0000

640 1000 1250 1540 1890 2310 2840 3420 4140 4700 5340 5990 6530 7580

60 45 00000

850 1060 1300 1600 1960 2400 2890 3500 3970 4520 5070 5530 6410

75 55 00000

690 860 1060 1310 1600 1970 2380 2890 3290 3750 5220 4610 5370

100 75 0000000

790 970 1190 1460 1770 2150 2440 2790 3140 3430 3990

125 90 00000000

770 950 1160 1400 1690 1920 2180 2440 2650 3070

150 110 000000000

800 990 1190 1440 1630 1860 2080 2270 2640

175 130 0000000000

870 1050 1270 1450 1650 1860 2030 2360

200 150 00000000000

920 1110 1260 1440 1620 1760 2050

Lengths in BOLD only meet the US National Electrical Code ampacity requirements for individual conductors in free air

or water. Lengths NOT in bold meet NEC ampacity requirements for either individual conductors or jacketed cable. See

11 for additional details.

Table 17 Three-Phase 60 °C Cable (Continued)

17 Continued on page 18

Application – Three-Phase Motors

60 °C

MOTOR RATING 60 °C INSULATION - AWG COPPER WIRE SIZE MCM COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000 250 300 350 400 500

200 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 160 250 420 660 1030 1620 2020 2490 3060 3730 4570 5500 6660 7540

7.5 5.5 110 180 300 460 730 1150 1440 1770 2170 2650 3250 3900 4720 5340

10 7.5 80 130 210 340 550 850 1080 1320 1630 1990 2460 2950 3580 4080 4650 5220 5700 6630

15 11 00

140 240 370 580 730 900 1110 1360 1660 2010 2440 2770 3150 3520 3850 4470

20 15 000

170 280 450 570 690 850 1050 1290 1570 1900 2160 2470 2770 3030 3540

25 18.5 000

140 220 360 450 550 690 850 1050 1260 1540 1750 1990 2250 2460 2850

30 22 0000

180 294 370 460 570 700 870 1050 1270 1450 1660 1870 2040 2380

230 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 210 340 550 880 1380 2140 2680 3280 4030 4930 6040 7270 8800 9970

7.5 5.5 150 240 390 630 970 1530 1900 2340 2880 3510 4300 5160 6240 7060 8010 8950 9750

10 7.5 110 180 280 460 730 1140 1420 1750 2160 2640 3240 3910 4740 5380 6150 6900 7530 8760

15 11 00

190 310 490 780 970 1200 1470 1800 2200 2670 3220 3660 4170 4660 5100 5910

20 15 00

140 230 370 600 750 910 1140 1390 1710 2070 2520 2860 3270 3670 4020 4680

25 18.5 000

190 300 480 600 750 910 1120 1380 1680 2040 2310 2640 2970 3240 3780

30 22 000

150 240 390 490 610 760 930 1140 1390 1690 1920 2200 2470 2700 3160

380 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 600 960 1510 2380 3730 5800 7170 8800

7.5 5.5 400 660 1030 1630 2560 3960 4890 6000 7390 9010

10 7.5 300 480 760 1200 1870 2890 3570 4360 5350 6490 7840 9390

15 11 210 340 550 880 1380 2140 2650 3250 4030 4930 6000 7260 8650 9780

20 15 160 260 410 660 1050 1630 2020 2500 3090 3790 4630 5640 6750 7660 4260 9760

25 18.5 0210 330 540 850 1320 1650 2020 2500 3070 3760 4560 5460 6190 7080 7870 8610 9880

30 22 00

270 430 700 1090 1360 1680 2070 2550 3120 3780 4530 5140 5880 6540 7150 8230

40 30 000

320 510 790 990 1230 1510 1860 2280 2760 3300 3750 4270 4750 5200 5980

50 37 000

250 400 630 810 990 1230 1500 1830 2220 2650 3010 3430 3820 4170 4780

60 45 0000

340 540 660 840 1030 1270 1540 1870 2250 2550 2910 3220 3520 4050

75 55 00000

450 550 690 855 1050 1290 1570 1900 2160 2490 2770 3040 3520

100 75 000000

420 520 640 760 940 1140 1360 1540 1770 1960 2140 2470

125 90 0000000

400 490 600 730 930 1110 1260 1420 1590 1740 1990

150 110 00000000

420 510 620 750 930 1050 1180 1320 1440 1630

175 130 00000000

360 440 540 660 780 970 1120 1260 1380 1600

200 150 0000000000

480 580 690 790 940 1050 1140 1320

460 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 880 1420 2250 3540 5550 8620

7.5 5.5 630 1020 1600 2530 3960 6150 7650 9390

10 7.5 460 750 1180 1870 2940 4570 5700 7020 8620

15 11 310 510 810 1270 2010 3130 3900 4800 5890 7210 8850

20 15 230 380 610 970 1540 2410 3000 3700 4560 5590 6870 8290

25 18.5 190 310 490 790 1240 1950 2430 2980 3670 4510 5550 6700 8140

30 22 0250 410 640 1020 1600 1990 2460 3040 3730 4590 5550 6750 7690 8790

40 30 00

300 480 750 1180 1470 1810 2230 2740 3370 4060 4930 5590 6370

50 37 000

370 590 960 1200 1470 1810 2220 2710 3280 3970 4510 5130 5740 6270 7270

60 45 000

320 500 810 1000 1240 1530 1870 2310 2770 3360 3810 4330 4860 5310 6150

75 55 0000

420 660 810 1020 1260 1540 1890 2280 2770 3150 3600 4050 4420 5160

100 75 00000

500 610 760 930 1140 1410 1690 2070 2340 2680 3010 3280 3820

125 90 000000

470 590 730 880 1110 1330 1500 1830 2080 2340 2550 2940

150 110 0000000

510 630 770 950 1140 1380 1570 1790 2000 2180 2530

175 130 00000000

550 680 830 1000 1220 1390 1580 1780 1950 2270

200 150 000000000

590 730 880 1070 1210 1380 1550 1690 1970

575 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 1380 2220 3490 5520 8620

7.5 5.5 990 1590 2520 3970 6220

10 7.5 730 1170 1860 2920 4590 7150 8910

15 11 490 790 1270 2010 3130 4890 6090

20 15 370 610 970 1540 2410 3780 4710 5790 7140 8740

25 18.5 300 490 780 1240 1950 3040 3790 4660 5760 7060

30 22 240 400 645 1020 1600 2500 3120 3840 4740 5820 7150 8670

40 30 0300 480 750 1180 1860 2310 2850 3490 4290 5260 6340 7710 8740

50 37 00

380 590 960 1500 1870 2310 2830 3460 4260 5130 6210 7050 8010 8980 9790

60 45 000

500 790 1270 1590 1950 2400 2940 3600 4330 5250 5950 6780 7600 8290 9610

75 55 000

420 660 1030 1290 1590 1960 2400 2950 3570 4330 4930 5620 6330 6910 8050

100 75 0000

400 780 960 1180 1450 1780 2190 2650 3220 3660 4180 4710 5140 5980

125 90 00000

600 740 920 1150 1420 1740 2100 2530 2880 3270 3660 3970 4600

150 110 000000

650 800 990 1210 1480 1780 2160 2450 2790 3120 3410 3950

175 130 0000000

700 860 1060 1300 1570 1910 2170 2480 2780 3040 3540

200 150 00000000

760 930 1140 1370 1670 1890 2160 2420 2640 3070

Lengths in BOLD only meet the US National Electrical Code ampacity requirements for individual conductors in free air

or water. Lengths NOT in bold meet NEC ampacity requirements for either individual conductors or jacketed cable. See

page 11 for additional details.

Table 18 Three-Phase 60 °C Cable (Continued)

Application – Three-Phase Motors

Continued on page 20

75 °C

MOTOR RATING 75 °C INSULATION - AWG COPPER WIRE SIZE MCM COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000 250 300 350 400 500

200 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 710 1140 1800 2840 4420

3/4 0.55 510 810 1280 2030 3160

1 0.75 430 690 1080 1710 2670 4140 5140

1.5 1.1 310 500 790 1260 1960 3050 3780

2 1.5 240 390 610 970 1520 2360 2940 3610 4430 5420

3 2.2 180 290 470 740 1160 1810 2250 2760 3390 4130

5 3.7 110 170 280 440 690 1080 1350 1660 2040 2490 3050 3670 4440 5030

7.5 5.5 0 0 200 310 490 770 960 1180 1450 1770 2170 2600 3150 3560

10 7.5 00

150 230 370 570 720 880 1090 1330 1640 1970 2390 2720 3100 3480 3800 4420

15 11 000

160 250 390 490 600 740 910 1110 1340 1630 1850 2100 2350 2570 2980

20 15 0000

190 300 380 460 570 700 860 1050 1270 1440 1650 1850 2020 2360

25 18.5 00000

240 300 370 460 570 700 840 1030 1170 1330 1500 1640 1900

30 22 00000

200 250 310 380 470 580 700 850 970 1110 1250 1360 1590

230 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 930 1490 2350 3700 5760 8910

3/4 0.55 670 1080 1700 2580 4190 6490 8060 9860

1 0.75 560 910 1430 2260 3520 5460 6780 8290

1.5 1.1 420 670 1060 1670 2610 4050 5030 6160 7530 9170

2 1.5 320 510 810 1280 2010 3130 3890 4770 5860 7170 8780

3 2.2 240 390 620 990 1540 2400 2980 3660 4480 5470 6690 8020 9680

5 3.7 140 230 370 590 920 1430 1790 2190 2690 3290 4030 4850 5870 6650 7560 8460 9220

7.5 5.5 0160 260 420 650 1020 1270 1560 1920 2340 2870 3440 4160 4710 5340 5970 6500 7510

10 7.5 00

190 310 490 760 950 1170 1440 1760 2160 2610 3160 3590 4100 4600 5020 5840

15 11 000

210 330 520 650 800 980 1200 1470 1780 2150 2440 2780 3110 3400 3940

20 15 000

160 250 400 500 610 760 930 1140 1380 1680 1910 2180 2450 2680 3120

25 18.5 0000

200 320 400 500 610 750 920 1120 1360 1540 1760 1980 2160 2520

30 22 00000

260 330 410 510 620 760 930 1130 1280 1470 1650 1800 2110

380 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 2690 4290 6730

3/4 0.55 2000 3190 5010 7860

1 0.75 1620 2580 4060 6390 9980

1.5 1.1 1230 1970 3100 4890 7630

2 1.5 870 1390 2180 3450 5400 8380

3 2.2 680 1090 1710 2690 4200 6500 8020 9830

5 3.7 400 640 1010 1590 2490 3870 4780 5870 7230 8830

7.5 5.5 270 440 690 1090 1710 2640 3260 4000 4930 6010 7290 8780

10 7.5 200 320 510 800 1250 1930 2380 2910 3570 4330 5230 6260 7390 8280 9340

15 11 0 0 370 590 920 1430 1770 2170 2690 3290 4000 4840 5770 6520 7430 8250 8990

20 15 00

280 440 700 1090 1350 1670 2060 2530 3090 3760 4500 5110 2840 6510 7120 8190

25 18.5 000

360 570 880 1100 1350 1670 2050 2510 3040 3640 4130 4720 5250 5740 6590

30 22 000

290 470 730 910 1120 1380 1700 2080 2520 3020 3430 3920 4360 4770 5490

40 30 00000

530 660 820 1010 1240 1520 1840 2200 2500 2850 3170 3470 3990

50 37 00000

440 540 660 820 1000 1220 1480 1770 2010 2290 2550 2780 3190

60 45 00000

370 460 560 690 850 1030 1250 1500 1700 1940 2150 2350 2700

75 55 0000000

460 570 700 860 1050 1270 1440 1660 1850 2030 2350

100 75 00000000

420 510 630 760 910 1030 1180 1310 1430 1650

125 90 0000000000

510 620 740 840 950 1060 1160 1330

150 110 00000000000

520 620 700 790 880 960 1090

175 130 000000000000

560 650 750 840 920 1070

200 150 0000000000000

550 630 700 760 880

Lengths in BOLD only meet the US National Electrical Code ampacity requirements for individual conductors in free air

or water. Lengths NOT in bold meet NEC ampacity requirements for either individual conductors or jacketed cable. See

page 11 for additional details.

Table 19 Three-Phase 75 °C Cable, 60 Hz (Service Entrance to Motor) Maximum Length in Feet

Application – Three-Phase Motors

75 °C

MOTOR RATING 75 °C INSULATION - AWG COPPER WIRE SIZE MCM COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000 250 300 350 400 500

460 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 3770 6020 9460

3/4 0.55 2730 4350 6850

1 0.75 2300 3670 5770 9070

1.5 1.1 1700 2710 4270 6730

2 1.5 1300 2070 3270 5150 8050

3 2.2 1000 1600 2520 3970 6200

5 3.7 590 950 1500 2360 3700 5750

7.5 5.5 420 680 1070 1690 2640 4100 5100 6260 7680

10 7.5 310 500 790 1250 1960 3050 3800 4680 5750 7050

15 11 0340 540 850 1340 2090 2600 3200 3930 4810 5900 7110

20 15 0 0 410 650 1030 1610 2000 2470 3040 3730 4580 5530

25 18.5 00

330 530 830 1300 1620 1990 2450 3010 3700 4470 5430

30 22 00

270 430 680 1070 1330 1640 2030 2490 3060 3700 4500 5130 5860

40 30 000

320 500 790 980 1210 1490 1830 2250 2710 3290 3730 4250

50 37 0000

410 640 800 980 1210 1480 1810 2190 2650 3010 3420 3830 4180 4850

60 45 00000

540 670 830 1020 1250 1540 1850 2240 2540 2890 3240 3540 4100

75 55 00000

440 550 680 840 1030 1260 1520 1850 2100 2400 2700 2950 3440

100 75 0000000

500 620 760 940 1130 1380 1560 1790 2010 2190 2550

125 90 000000000

600 740 890 1000 1220 1390 1560 1700 1960

150 110 0000000000

630 760 920 1050 1190 1340 1460 1690

175 130 00000000000

670 810 930 1060 1190 1300 1510

200 150 00000000000

590 710 810 920 1030 1130 1310

575 V

60 Hz

Three-

Phase

3 - Lead

1/2 0.37 5900 9410

3/4 0.55 4270 6810

1 0.75 3630 5800 9120

1.5 1.1 2620 4180 6580

2 1.5 2030 3250 5110 8060

3 2.2 1580 2530 3980 6270

5 3.7 920 1480 2330 3680 5750

7.5 5.5 660 1060 1680 2650 4150

10 7.5 490 780 1240 1950 3060 4770 5940

15 11 330 530 850 1340 2090 3260 4060

20 15 0410 650 1030 1610 2520 3140 3860 4760 5830

25 18.5 0 0 520 830 1300 2030 2530 3110 3840 4710

30 22 00

430 680 1070 1670 2080 2560 3160 3880 4770 5780 7030 8000

40 30 000

500 790 1240 1540 1900 2330 2860 3510 4230 5140 5830

50 37 000

410 640 1000 1250 1540 1890 2310 2840 3420 4140 4700 5340 5990 6530 7580

60 45 0000

540 850 1060 1300 1600 1960 2400 2890 3500 3970 4520 5070 5530 6410

75 55 00000

690 860 1060 1310 1600 1970 2380 2890 3290 3750 5220 4610 5370

100 75 000000

640 790 970 1190 1460 1770 2150 2440 2790 3140 3430 3990

125 90 0000000

630 770 950 1160 1400 1690 1920 2180 2440 2650 3070

150 110 00000000

660 800 990 1190 1440 1630 1860 2080 2270 2640

175 130 000000000

700 870 1050 1270 1450 1650 1860 2030 2360

200 150 0000000000

760 920 1110 1260 1440 1620 1760 2050

Lengths in BOLD only meet the US National Electrical Code ampacity requirements for individual conductors in free air

or water. Lengths NOT in bold meet NEC ampacity requirements for either individual conductors or jacketed cable. See

page 11 for additional details.

Table 20 Three-Phase 75 °C Cable (Continued)

Continued on page 21

Application – Three-Phase Motors

75 °C

MOTOR RATING 75 °C INSULATION - AWG COPPER WIRE SIZE MCM COPPER WIRE SIZE

VOLTSHPKW1412108643210000000000 250 300 350 400 500

200 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 160 250 420 660 1030 1620 2020 2490 3060 3730 4570 5500 6660 7540

7.5 5.5 110 180 300 460 730 1150 1440 1770 2170 2650 3250 3900 4720 5340

10 7.5 80 130 210 340 550 850 1080 1320 1630 1990 2460 2950 3580 4080 4650 5220 5700 6630

15 11 0 0 140 240 370 580 730 900 1110 1360 1660 2010 2440 2770 3150 3520 3850 4470

20 15 00

120 170 280 450 570 690 850 1050 1290 1570 1900 2160 2470 2770 3030 3540

25 18.5 000

140 220 360 450 550 690 850 1050 1260 1540 1750 1990 2250 2460 2850

30 22 000

120 180 294 370 460 570 700 870 1050 1270 1450 1660 1870 2040 2380

230 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 210 340 550 880 1380 2140 2680 3280 4030 4930 6040 7270 8800 9970

7.5 5.5 150 240 390 630 970 1530 1900 2340 2880 3510 4300 5160 6240 7060 8010 8950 9750

10 7.5 110 180 280 460 730 1140 1420 1750 2160 2640 3240 3910 4740 5380 6150 6900 7530 8760

15 11 0130 190 310 490 780 970 1200 1470 1800 2200 2670 3220 3660 4170 4660 5100 5910

20 15 00

140 230 370 600 750 910 1140 1390 1710 2070 2520 2860 3270 3670 4020 4680

25 18.5 00

120 190 300 480 600 750 910 1120 1380 1680 2040 2310 2640 2970 3240 3780

30 22 000

150 240 390 490 610 760 930 1140 1390 1690 1920 2200 2470 2700 3160

380 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 600 960 1510 2380 3730 5800 7170 8800

7.5 5.5 400 660 1030 1630 2560 3960 4890 6000 7390 9010

10 7.5 300 480 760 1200 1870 2890 3570 4360 5350 6490 7840 9390

15 11 210 340 550 880 1380 2140 2650 3250 4030 4930 6000 7260 8650 9780

20 15 160 260 410 660 1050 1630 2020 2500 3090 3790 4630 5640 6750 7660 4260 9760

25 18.5 0210 330 540 850 1320 1650 2020 2500 3070 3760 4560 5460 6190 7080 7870 8610 9880

30 22 00

270 430 700 1090 1360 1680 2070 2550 3120 3780 4530 5140 5880 6540 7150 8230

40 30 00

210 320 510 790 990 1230 1510 1860 2280 2760 3300 3750 4270 4750 5200 5980

50 37 000

250 400 630 810 990 1230 1500 1830 2220 2650 3010 3430 3820 4170 4780

60 45 0000

340 540 660 840 1030 1270 1540 1870 2250 2550 2910 3220 3520 4050

75 55 0000

290 450 550 690 855 1050 1290 1570 1900 2160 2490 2770 3040 3520

100 75 00000

340 420 520 640 760 940 1140 1360 1540 1770 1960 2140 2470

125 90 000000

340 400 490 600 730 930 1110 1260 1420 1590 1740 1990

150 110 0000000

350 420 510 620 750 930 1050 1180 1320 1440 1630

175 130 00000000

360 440 540 660 780 970 1120 1260 1380 1600

200 150 000000000

410 480 580 690 790 940 1050 1140 1320

460 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 880 1420 2250 3540 5550 8620

7.5 5.5 630 1020 1600 2530 3960 6150 7650 9390

10 7.5 460 750 1180 1870 2940 4570 5700 7020 8620

15 11 310 510 810 1270 2010 3130 3900 4800 5890 7210 8850

20 15 230 380 610 970 1540 2410 3000 3700 4560 5590 6870 8290

25 18.5 190 310 490 790 1240 1950 2430 2980 3670 4510 5550 6700 8140

30 22 0250 410 640 1020 1600 1990 2460 3040 3730 4590 5550 6750 7690 8790

40 30 00

300 480 750 1180 1470 1810 2230 2740 3370 4060 4930 5590 6370

50 37 00

250 370 590 960 1200 1470 1810 2220 2710 3280 3970 4510 5130 5740 6270 7270

60 45 000

320 500 810 1000 1240 1530 1870 2310 2770 3360 3810 4330 4860 5310 6150

75 55 0000

420 660 810 1020 1260 1540 1890 2280 2770 3150 3600 4050 4420 5160

100 75 0000

310 500 610 760 930 1140 1410 1690 2070 2340 2680 3010 3280 3820

125 90 00000

390 470 590 730 880 1110 1330 1500 1830 2080 2340 2550 2940

150 110 000000

420 510 630 770 950 1140 1380 1570 1790 2000 2180 2530

175 130 0000000

450 550 680 830 1000 1220 1390 1580 1780 1950 2270

200 150 00000000

480 590 730 880 1070 1210 1380 1550 1690 1970

575 V

60 Hz

Three-

Phase

6 - Lead

Y-D

5 3.7 1380 2220 3490 5520 8620

7.5 5.5 990 1590 2520 3970 6220

10 7.5 730 1170 1860 2920 4590 7150 8910

15 11 490 790 1270 2010 3130 4890 6090

20 15 370 610 970 1540 2410 3780 4710 5790 7140 8740

25 18.5 300 490 780 1240 1950 3040 3790 4660 5760 7060

30 22 240 400 645 1020 1600 2500 3120 3840 4740 5820 7150 8670

40 30 0300 480 750 1180 1860 2310 2850 3490 4290 5260 6340 7710 8740

50 37 00

380 590 960 1500 1870 2310 2830 3460 4260 5130 6210 7050 8010 8980 9790

60 45 00

330 500 790 1270 1590 1950 2400 2940 3600 4330 5250 5950 6780 7600 8290 9610

75 55 000

420 660 1030 1290 1590 1960 2400 2950 3570 4330 4930 5620 6330 6910 8050

100 75 0000

400 780 960 1180 1450 1780 2190 2650 3220 3660 4180 4710 5140 5980

125 90 00000

600 740 920 1150 1420 1740 2100 2530 2880 3270 3660 3970 4600

150 110 00000

520 650 800 990 1210 1480 1780 2160 2450 2790 3120 3410 3950

175 130 000000

570 700 860 1060 1300 1570 1910 2170 2480 2780 3040 3540

200 150 000000

500 610 760 930 1140 1370 1670 1890 2160 2420 2640 3070

Lengths in BOLD only meet the US National Electrical Code ampacity requirements for individual conductors in free air

or water. Lengths NOT in bold meet NEC ampacity requirements for either individual conductors or jacketed cable. See

page 11 for additional details.

Table 21 Three-Phase 75 °C Cable (Continued)

Application – Three-Phase Motors

TYPE

MOTOR

MODEL

PREFIX

RATING FULL LOAD MAXIMUM

(S.F. LOAD) LINE TO LINE

RESISTANCE

OHMS

EFFICIENCY % LOCKED

ROTOR

AMPS

KVA

CODE

HP KW VOLTS HZ S.F. AMPS WATTS AMPS WATTS S.F. F.L.

234501 1/2 0.37 200 60 1.6 2.8 585 3.4 860 6.6-8.4 70 64 17.5 N

234511 1/2 0.37 230 60 1.6 2.4 585 2.9 860 9.5-10.9 70 64 15.2 N

234541 1/2 0.37 380 60 1.6 1.4 585 2.1 860 23.2-28.6 70 64 9.2 N

234521 1/2 0.37 460 60 1.6 1.2 585 1.5 860 38.4-44.1 70 64 7.6 N

234502 3/4 0.55 200 60 1.5 3.6 810 4.4 1150 4.6-5.9 73 69 23.1 M

234512 3/4 0.55 230 60 1.5 3.1 810 3.8 1150 6.8-7.8 73 69 20.1 M

234542 3/4 0.55 380 60 1.5 1.9 810 2.5 1150 16.6-20.3 73 69 12.2 M

234522 3/4 0.55 460 60 1.5 1.6 810 1.9 1150 27.2-30.9 73 69 10.7 M

234503 1 0.75 200 60 1.4 4.5 1070 5.4 1440 3.8-4.5 72 70 30.9 M

234513 1 0.75 230 60 1.4 3.9 1070 4.7 1440 4.9-5.6 72 70 26.9 M

234543 1 0.75 380 60 1.4 2.3 1070 2.8 1440 12.2-14.9 72 70 16.3 M

234523 1 0.75 460 60 1.4 2 1070 2.4 1440 19.9-23.0 72 70 13.5 M

234504 1.5 1.1 200 60 1.3 5.8 1460 6.8 1890 2.5-3.0 76 76 38.2 K

234514 1.5 1.1 230 60 1.3 5 1460 5.9 1890 3.2-4.0 76 76 33.2 K

234544 1.5 1.1 380 60 1.3 3 1460 3.6 1890 8.5-10.4 76 76 20.1 K

234524 1.5 1.1 460 60 1.3 2.5 1460 3.1 1890 13.0-16.0 76 76 16.6 K

234534 1.5 1.1 575 60 1.3 2 1460 2.4 1890 20.3-25.0 76 76 13.3 K

234305 2 1.5 200 60 1.25 7.7 2150 9.3 2700 1.8-2.4 69 69 53.6 L

234315 2 1.5 230 60 1.25 6.7 2150 8.1 2700 2.3-3.0 69 69 46.6 L

234345 2 1.5 380 60 1.25 4.1 2150 4.9 2700 6.6-8.2 69 69 28.2 L

234325 2 1.5 460 60 1.25 3.4 2150 4.1 2700 9.2-12.0 69 69 23.3 L

234335 2 1.5 575 60 1.25 2.7 2150 3.2 2700 14.6-18.7 69 69 18.6 L

234306 3 2.2 200 60 1.15 10.9 2980 12.5 3420 1.3-1.7 75 75 71.2 K

234316 3 2.2 230 60 1.15 9.5 2980 10.9 3420 1.8-2.2 75 75 61.9 K

234346 3 2.2 380 60 1.15 5.8 2980 6.6 3420 4.7-6.0 75 75 37.5 K

234326 3 2.2 460 60 1.15 4.8 2980 5.5 3420 7.2-8.8 75 75 31 K

234336 3 2.2 575 60 1.15 3.8 2980 4.4 3420 11.4-13.9 75 75 24.8 K

234307 5 3.7 200 60 1.15 18.3 5050 20.5 5810 .74-.91 74 74 122 K

234317 5 3.7 230 60 1.15 15.9 5050 17.8 5810 1.0-1.2 74 74 106 K

234347 5 3.7 380 60 1.15 9.6 5050 10.8 5810 2.9-3.6 74 74 64.4 K

234327 5 3.7 460 60 1.15 8 5050 8.9 5810 4.0-4.9 74 74 53.2 K

234337 5 3.7 575 60 1.15 6.4 5050 7.1 5810 6.4-7.8 74 74 42.6 K

234308 7.5 5.5 200 60 1.15 26.5 7360 30.5 8450 .46-.57 76 76 188 K

234318 7.5 5.5 230 60 1.15 23 7360 26.4 8450 .61-.75 76 76 164 K

234348 7.5 5.5 380 60 1.15 13.9 7360 16 8450 1.6-2.0 76 76 99.1 K

234328 7.5 5.5 460 60 1.15 11.5 7360 13.2 8450 2.5-3.1 76 76 81.9 K

234338 7.5 5.5 575 60 1.15 9.2 7360 10.6 8450 4.0-5.0 76 76 65.5 K

234549 10 7.5 380 60 1.15 19.3 10000 21 11400 1.2-1.6 75 75 140 L

234595 10 7.5 460 60 1.15 15.9 10000 17.3 11400 1.8-2.3 75 75 116 L

234598 10 7.5 575 60 1.15 12.5 10000 13.6 11400 2.8-3.5 75 75 92.8 L

Table 22 Three-Phase Motor Speciﬁ cations (60 Hz)

Application – Three-Phase Motors

Table 23 Three-Phase Motor Fuse Sizing

TYPE

MOTOR

MODEL

PREFIX

RATING

CIRCUIT BREAKERS OR FUSE AMPS CIRCUIT BREAKERS OR FUSE AMPS

(MAXIMUM PER NEC) (TYPICAL SUBMERSIBLE)

STANDARD

FUSE

DUAL ELEMENT TIME

DELAY FUSE

CIRCUIT

BREAKER

STANDARD

FUSE

DUAL ELEMENT TIME

DELAY FUSE

CIRCUIT

BREAKER

HP KW VOLTS

234501 1/2 0.37 200 10 5 8 10 4 15

234511 1/2 0.37 230 8 4.5 6 8 4 15

234541 1/2 0.37 380 5 2.5 4 5 2 15

234521 1/2 0.37 460 4 2.25 3 4 2 15

234502 3/4 0.55 2001571012515

234512 3/4 0.55 230 10 5.6 8 10 5 15

234542 3/4 0.55 380 6 3.5 5 6 3 15

234522 3/4 0.55 460 5 2.8 4 5 3 15

234503 1 0.75 2001581515615

234513 1 0.75 2301571012615

234543 1 0.75 380 8 4.5 8 8 4 15

234523 1 0.75 460 6 3.5 5 6 3 15

234504 1.5 1.1 200 20 12 15 20 8 15

234514 1.5 1.1 2301591515815

234544 1.5 1.1 380 10 5.6 8 10 4 15

234524 1.5 1.1 460 8 4.5 8 8 4 15

234534 1.5 1.1 575 6 3.5 5 6 3 15

234305 2 1.5 200 25 15 20 25 11 20

234315 2 1.5 230 25 12 20 25 10 20

234345 2 1.5 3801581515615

234325 2 1.5 4601561011515

234335 2 1.5 575 10 5 8 10 4 15

234306 3 2.2 200 35 20 30 35 15 30

234316 3 2.2 230 30 17.5 25 30 12 25

234346 3 2.2 380 20 12 15 20 8 15

234326 3 2.2 4601591515615

234336 3 2.2 5751571011515

234307 5 3.7 200 60 35 50 60 25 50

234317 5 3.7 230 50 30 40 45 20 40

234347 5 3.7 380 30 17.5 25 30 12 25

234327 5 3.7 460 25 15 20 25 10 20

234337 5 3.7 575 20 12 20 20 8 20

234308 7.5 5.5 200 90 50 70 80 35 70

234318 7.5 5.5 230 80 45 60 70 30 60

234348 7.5 5.5 380 45 25 40 40 20 40

234328 7.5 5.5 460 40 25 30 35 15 30

234338 7.5 5.5 575 30 17.5 25 30 12 25

234349 10 7.5 380 70 40 60 60 25 60

234329 10 7.5 460 60 30 45 50 25 45

234339 10 7.5 575 45 25 35 40 20 35

234549 10 7.5 380 70 35 60 60 25 60

234595 10 7.5 460 60 30 45 50 25 45

234598 10 7.5 575 45 25 35 40 20 35

Application – Three-Phase Motors

Model numbers above are for three-lead motors. Six-lead motors with different model numbers have the same running

performance, but when wye connected for starting have locked rotor amps 33% of the values shown. Six-lead individual

phase resistance = table X 1.5.

Table 24 Three-Phase Motor Speciﬁ cations (60 Hz)

TYPE

MOTOR

MODEL

PREFIX

RATING FULL LOAD MAXIMUM

(S.F. LOAD) LINE TO LINE

RESISTANCE

OHMS

EFFICIENCY % LOCKED

ROTOR

AMPS

KVA

CODE

HP KW VOLTS HZ S.F. AMPS WATTS AMPS WATTS S.F. F.L.

236650 5 3.7 200 60 1.15 17.5 4700 20.0 5400 .77-.93 79 79 99 H

236600 5 3.7 230 60 1.15 15 4700 17.6 5400 1.0-1.2 79 79 86 H

236660 5 3.7 380 60 1.15 9.1 4700 10.7 5400 2.6-3.2 79 79 52 H

236610 5 3.7 460 60 1.15 7.5 4700 8.8 5400 3.9-4.8 79 79 43 H

236620 5 3.7 575 60 1.15 6 4700 7.1 5400 6.3-7.7 79 79 34 H

236651 7.5 5.5 200 60 1.15 25.1 7000 28.3 8000 .43-.53 80 80 150 H

236601 7.5 5.5 230 60 1.15 21.8 7000 24.6 8000 .64-.78 80 80 130 H

236661 7.5 5.5 380 60 1.15 13.4 7000 15 8000 1.6-2.1 80 80 79 H

236611 7.5 5.5 460 60 1.15 10.9 7000 12.3 8000 2.4-2.9 80 80 65 H

236621 7.5 5.5 575 60 1.15 8.7 7000 9.8 8000 3.7-4.6 80 80 52 H

236652 10 7.5 200 60 1.15 32.7 9400 37 10800 .37-.45 79 79 198 H

236602 10 7.5 230 60 1.15 28.4 9400 32.2 10800 .47-.57 79 79 172 H

236662 10 7.5 380 60 1.15 17.6 9400 19.6 10800 1.2-1.5 79 79 104 H

236612 10 7.5 460 60 1.15 14.2 9400 16.1 10800 1.9-2.4 79 79 86 H

236622 10 7.5 575 60 1.15 11.4 9400 12.9 10800 3.0-3.7 79 79 69 H

236653 15 11 200 60 1.15 47.8 13700 54.4 15800 .24-.29 81 81 306 H

236603 15 11 230 60 1.15 41.6 13700 47.4 15800 .28-.35 81 81 266 H

236663 15 11 380 60 1.15 25.8 13700 28.9 15800 .77-.95 81 81 161 H

236613 15 11 460 60 1.15 20.8 13700 23.7 15800 1.1-1.4 81 81 133 H

236623 15 11 575 60 1.15 16.6 13700 19 15800 1.8-2.3 81 81 106 H

236654 20 15 200 60 1.15 61.9 18100 69.7 20900 .16-.20 82 82 416 J

236604 20 15 230 60 1.15 53.8 18100 60.6 20900 .22-.26 82 82 362 J

236664 20 15 380 60 1.15 33 18100 37.3 20900 .55-.68 82 82 219 J

236614 20 15 460 60 1.15 26.9 18100 30.3 20900 .8-1.0 82 82 181 J

236624 20 15 575 60 1.15 21.5 18100 24.2 20900 1.3-1.6 82 82 145 J

236655 25 18.5 200 60 1.15 77.1 22500 86.3 25700 .12-.15 83 83 552 J

236605 25 18.5 230 60 1.15 67 22500 75 25700 .15-.19 83 83 480 J

236665 25 18.5 380 60 1.15 41 22500 46 25700 .46-.56 83 83 291 J

236615 25 18.5 460 60 1.15 33.5 22500 37.5 25700 .63-.77 83 83 240 J

236625 25 18.5 575 60 1.15 26.8 22500 30 25700 1.0-1.3 83 83 192 J

236656 30 22 200 60 1.15 90.9 26900 104 31100 .09-.11 83 83 653 J

236606 30 22 230 60 1.15 79 26900 90.4 31100 .14-.17 83 83 568 J

236666 30 22 380 60 1.15 48.8 26900 55.4 31100 .35-.43 83 83 317 J

236616 30 22 460 60 1.15 39.5 26900 45.2 31100 .52-.64 83 83 284 J

236626 30 22 575 60 1.15 31.6 26900 36.2 31100 .78-.95 83 83 227 J

236667 40 30 380 60 1.15 66.5 35600 74.6 42400 .26-.33 83 83 481 J

236617 40 30 460 60 1.15 54.9 35600 61.6 42400 .34-.42 83 83 397 J

236627 40 30 575 60 1.15 42.8 35600 49.6 42400 .52-.64 83 83 318 H

236668 50 37 380 60 1.15 83.5 45100 95 52200 .21-.25 82 83 501 H

236618 50 37 460 60 1.15 67.7 45100 77 52200 .25-.32 82 83 414 H

236628 50 37 575 60 1.15 54.2 45100 61.6 52200 .40-.49 82 83 331 H

236669 60 45 380 60 1.15 98.7 53500 111 61700 .15-.18 84 84 627 H

236619 60 45 460 60 1.15 80.5 53500 91 61700 .22-.27 84 84 518 H

236629 60 45 575 60 1.15 64.4 53500 72.8 61700 .35-.39 84 84 414 H

Application – Three-Phase Motors

Table 25 Three-Phase Motor Fuse Sizing

TYPE

MOTOR

MODEL

PREFIX

RATING

CIRCUIT BREAKERS OR FUSE AMPS CIRCUIT BREAKERS OR FUSE AMPS

(MAXIMUM PER NEC) (TYPICAL SUBMERSIBLE)

STANDARD

FUSE

DUAL ELEMENT TIME

DELAY FUSE

CIRCUIT

BREAKER

STANDARD

FUSE

DUAL ELEMENT TIME

DELAY FUSE

CIRCUIT

BREAKER

HP KW VOLTS

236650 5 3.7 200 60 35 45 50 25 45

236600 5 3.7 230 45 30 40 45 20 40

236660 5 3.7 380 30 17.5 25 30 12 25

236610 5 3.7 460 25 15 20 25 10 20

236620 5 3.7 575 20 12 15 20 8 15

236651 7.5 5.5 200 80 45 70 80 35 70

236601 7.5 5.5 230 70 40 60 70 30 60

236661 7.5 5.5 380 45 25 35 40 20 35

236611 7.5 5.5 460 35 20 30 35 15 30

236621 7.5 5.5 575 30 17.5 25 25 11 25

236652 10 7.5 200 100 60 90 100 45 90

236602 10 7.5 230 90 50 80 90 40 80

236662 10 7.5 380 60 35 45 50 25 45

236612 10 7.5 460 45 25 40 45 20 40

236622 10 7.5 575 35 20 30 35 15 30

236653 15 11 200 150 90 125 150 60 125

236603 15 11 230 150 80 110 125 60 110

236663 15 11 380 80 50 70 80 35 70

236613 15 11 460 70 40 60 60 30 60

236623 15 11 575 60 30 45 50 25 45

236654 20 15 200 200 110 175 175 80 175

236604 20 15 230 175 100 150 175 70 150

236664 20 15 380 100 60 90 100 45 90

236614 20 15 460 90 50 70 80 35 70

236624 20 15 575 70 40 60 70 30 60

236655 25 18.5 200 250 150 200 225 100 200

236605 25 18.5 230 225 125 175 200 90 175

236665 25 18.5 380 125 80 110 125 50 110

236615 25 18.5 460 110 60 90 100 45 90

236625 25 18.5 575 90 50 70 80 35 70

236656 30 22 200 300 175 250 300 125 250

236606 30 22 230 250 150 225 250 100 200

236666 30 22 380 150 90 125 150 60 125

236616 30 22 460 125 70 110 125 50 100

236626 30 22 575 100 60 90 100 40 80

236667 40 30 380 200 125 175 200 90 175

236617 40 30 460 175 100 150 175 70 150

236627 40 30 575 150 80 110 125 60 110

236668 50 37 380 250 150 225 250 110 225

236618 50 37 460 225 125 175 200 90 175

236628 50 37 575 175 100 150 175 70 150

236669 60 45 380 300 175 250 300 125 250

236619 60 45 460 250 150 225 250 100 225

236629 60 45 575 200 125 175 200 80 175

Application – Three-Phase Motors

Model numbers above are for three-lead motors. Six-lead motors with different model numbers have the same running

performance, but when wye connected for starting have locked rotor amps 33% of the values shown. Six-lead individual

phase resistance = table X 1.5.

Table 26 Three-Phase Motor Speciﬁ cations (60 Hz)

TYPE

MOTOR

MODEL

PREFIX

RATING FULL LOAD MAXIMUM

(S.F. LOAD) LINE TO LINE

RESISTANCE

OHMS

EFFICIENCY

%LOCKED

ROTOR

AMPS

KVA

CODE

HP KW VOLTS HZ S.F. AMPS KILOWATTS AMPS KILOWATTS S.F. F.L.

239660 40 30 380 60 1.15 64 35 72 40 .16-.20 86 86 479 J

239600 40 30 460 60 1.15 53 35 60 40 .24-.30 86 86 396 J

239610 40 30 575 60 1.15 42 35 48 40 .39-.49 86 86 317 J

239661 50 37 380 60 1.15 79 43 88 49 .12-.16 87 87 656 K

239601 50 37 460 60 1.15 64 43 73 49 .18-.22 87 87 542 K

239611 50 37 575 60 1.15 51 43 59 49 .28-.34 87 87 434 K

239662 60 45 380 60 1.15 92 52 104 60 .09-.11 88 87 797 K

239602 60 45 460 60 1.15 76 52 86 60 .14-.17 88 87 658 K

239612 60 45 575 60 1.15 61 52 69 60 .22-.28 88 87 526 K

239663 75 55 380 60 1.15 114 64 130 73.5 .06-.09 88 88 1046 L

239603 75 55 460 60 1.15 94 64 107 73.5 .10-.13 88 88 864 L

239613 75 55 575 60 1.15 76 64 86 73.5 .16-.21 88 88 691 L

239664 100 75 380 60 1.15 153 85 172 97.5 .05-.06 89 89 1466 L

239604 100 75 460 60 1.15 126 85 142 97.5 .07-.09 89 89 1211 L

239614 100 75 575 60 1.15 101 85 114 97.5 .11-.13 89 89 969 L

239165 125 90 380 60 1.15 202 109 228 125 .03-.04 87 86 1596 K

239105 125 90 460 60 1.15 167 109 188 125 .05-.07 87 86 1318 K

239115 125 90 575 60 1.15 134 109 151 125 .08-.11 87 86 1054 K

239166 150 110 380 60 1.15 235 128 266 146 .02-.03 88 87 1961 K

239106 150 110 460 60 1.15 194 128 219 146 .04-.05 88 87 1620 K

239116 150 110 575 60 1.15 155 128 176 146 .06-.08 88 87 1296 K

239167 175 130 380 60 1.15 265 150 302 173 .02-.04 88 88 1991 J

239107 175 130 460 60 1.15 219 150 249 173 .04-.05 88 88 1645 J

239117 175 130 575 60 1.15 175 150 200 173 .06-.08 88 88 1316 J

239168 200 150 380 60 1.15 298 169 342 194 .02-.03 88 88 2270 J

239108 200 150 460 60 1.15 246 169 282 194 .03-.05 88 88 1875 J

239118 200 150 575 60 1.15 197 169 226 194 .05-.07 88 88 1500 J

Application – Three-Phase Motors

Table 27 Three-Phase Motor Fuse Sizing

TYPE

MOTOR

MODEL

PREFIX

RATING CIRCUIT BREAKERS OR FUSE AMPS CIRCUIT BREAKERS OR FUSE AMPS

(MAXIMUM PER NEC) (TYPICAL SUBMERSIBLE)

STANDARD

FUSE

DUAL ELEMENT

TIME DELAY FUSE

CIRCUIT

BREAKER

STANDARD

FUSE

DUAL ELEMENT TIME

DELAY FUSE

CIRCUIT

BREAKER

HP KW VOLTS

239660 40 30 380 200 125 175 200 80 175

239600 40 30 460 175 100 150 175 70 150

239610 40 30 575 150 80 110 125 60 110

239661 50 37 380 250 150 200 225 100 200

239601 50 37 460 200 125 175 200 80 175

239611 50 37 575 175 90 150 150 70 150

239662 60 45 380 300 175 250 300 125 250

239602 60 45 460 250 150 200 225 100 200

239612 60 45 575 200 110 175 175 80 175

239663 75 55 380 350 200 300 350 150 300

239603 75 55 460 300 175 250 300 125 250

239613 75 55 575 250 150 200 225 100 200

239664 100 75 380 500 275 400 450 200 400

239604 100 75 460 400 225 350 400 175 350

239614 100 75 575 350 200 300 300 125 300

239165 125 90 380 700 400 600 600 250 600

239105 125 90 460 500 300 450 500 225 450

239115 125 90 575 450 250 350 400 175 350

239166 150 110 380 800 450 600 700 300 600

239106 150 110 460 600 350 500 600 250 500

239116 150 110 575 500 300 400 450 200 400

239167 175 130 380 800 500 700 800 350 700

239107 175 130 460 700 400 600 700 300 600

239117 175 130 575 600 350 450 600 225 450

239168 200 150 380 1000 600 800 1000 400 800

239108 200 150 460 800 450 700 800 350 700

239118 200 150 575 600 350 500 600 250 500

Application – Three-Phase Motors

Overload Protection of Three-Phase Submersible Motors

The characteristics of submersible motors are different

than standard motors and special overload protection

is required.

If the motor is locked, the overload protection must trip

within 10 seconds to protect the motor windings. Subtrol/

SubMonitor, a Franklin-approved adjustable overload

relay, or a Franklin-approved ﬁ xed heater must be used.

Fixed heater overloads must be the ambient-compensated

quick-trip type to maintain protection at high and low

air temperatures.

All heaters and amp settings shown are based on total

line amps. When determining amperage settings or

making heater selections for a six-lead motor with a

Wye-Delta starter, divide motor amps by 1.732.

pages 28, 29 and 30 list the correct selection and

settings for some manufacturers. Approval for other

manufacturers’ types not listed may be requested by

calling Franklin’s Submersible Service Hotline at

800-348-2420.

Refer to notes on page 29.

HP KW VOLTS

NEMA

STARTER

SIZE

HEATERS FOR

OVERLOAD RELAYS

ADJUSTABLE

RELAYS

(NOTE 3)

FURNAS

(NOTE 1)

G.E.

(NOTE 2) SET MAX.

1/2 0.37

200 00 K31 L380A 3.2 3.4

230 00 K28 L343A 2.7 2.9

380 00 K22 L211A 1.7 1.8

460 00 - L174A 1.4 1.5

575 00 - - 1.2 1.3

3/4 0.55

200 00 K34 L51CA 4.1 4.4

230 00 K32 L420A 3.5 3.8

380 00 K27 L282A 2.3 2.5

460 00 K23 L211A 1.8 1.9

575 00 K21 L193A 1.5 1.6

1 0.75

200 00 K37 L618A 5.0 5.4

230 00 K36 L561A 4.4 4.7

380 00 K28 L310A 2.6 2.8

460 00 K26 L282A 2.2 2.4

575 00 K23 L211A 1.8 1.9

1.5 1.1

200 00 K42 L750A 6.3 6.8

230 00 K39 L680A 5.5 5.9

380 00 K32 L420A 3.3 3.6

460 00 K29 L343A 2.8 3.0

575 00 K26 L282A 2.2 2.4

2 1.5

200 0 K50 L111B 8.6 9.3

230 0 K49 L910A 7.5 8.1

380 0 K36 L561A 4.6 4.9

460 00 K33 L463A 3.8 4.1

575 00 K29 L380A 3.0 3.2

3 2.2

200 0 K55 L147B 11.6 12.5

230 0 K52 L122B 10.1 10.9

380 0 K41 L750A 6.1 6.6

460 0 K37 L618A 5.1 5.5

575 0 K34 L510A 4.1 4.4

5 3.7

200 1 K62 L241B 19.1 20.5

230 1 K61 L199B 16.6 17.8

380 0 K52 L122B 10.0 10.8

460 0 K49 L100B 8.3 8.9

575 0 K42 L825A 6.6 7.1

7.5 5.5

200 1 K68 L332B 28.4 30.5

230 1 K67 L293B 24.6 26.4

380 1 K58 L181B 14.9 16.0

460 1 K55 L147B 12.3 13.2

575 1 K52 L122B 9.9 10.6

10 7.5

380 1 K62 L241B 19.5 21.0

460 1 K60 L199B 16.1 17.3

575 1 K56 L165B 12.9 13.6

Class 10 Protection Required

Table 28 - 60 Hz 4" Motors

Application – Three-Phase Motors

Footnotes for Tables 28, 29, and 30

NOTE 1: Furnas intermediate sizes between

NEMA starter sizes apply where (1) is shown in

tables, size 1.75 replacing 2, 2.5 replacing 3, 3.5

replacing 4, and 4.5 replacing 5. Heaters were

selected from Catalog 294, table 332 and table

632 (starter size 00, size B). Size 4 starters are

heater type 4 (JG). Starters using these heater

tables include classes 14, 17 and 18 (inNOVA),

classes 36 and 37 (reduced voltage), and classes

87, 88 and 89 (pump and motor control centers).

Overload relay adjustments should be set no

higher than 100% unless necessary to stop

nuisance tripping with measured amps in all lines

below nameplate maximum. Heater selections for

class 16 starters (Magnetic Deﬁ nite Purpose) will

be furnished upon request.

NOTE 2: General Electric heaters are type CR123

usable only on type CR124 overload relays and

were selected from Catalog GEP-126OJ, page

184. Adjustment should be set no higher than

100%, unless necessary to stop nuisance tripping

with measured amps in all lines below nameplate

maximum.

NOTE 3: Adjustable overload relay amp settings

apply to approved types listed. Relay adjustment

should be set at the speciﬁ ed SET amps. Only if

tripping occurs with amps in all lines measured to

be within nameplate maximum amps should the

setting be increased, not to exceed the MAX

value shown.

NOTE 4: Heaters shown for ratings requiring

NEMA size 5 or 6 starters are all used with

current transformers per manufacturer standards.

Adjustable relays may or may not use current

transformers depending on design.

HP KW VOLTS

NEMA

STARTER

SIZE

HEATERS FOR

OVERLOAD RELAYS

ADJUSTABLE

RELAYS

(NOTE 3)

FURNAS

(NOTE 1)

G.E.

(NOTE 2) SET MAX.

5 3.7

200 1 K61 L220B 17.6 19.1

230 1 K61 L199B 15.4 16.6

380 0 K52 L122B 9.4 10.1

460 0 K49 L100B 7.7 8.3

575 0 K42 L825A 6.1 6.6

7.5 5.5

200 1 K67 L322B 26.3 28.3

230 1 K64 L293B 22.9 24.6

380 1 K57 L165B 13.9 14.9

460 1 K54 L147B 11.4 12.3

575 1 K52 L111B 9.1 9.8

10 7.5

200 2(1) K72 L426B 34.4 37.0

230 2(1) K70 L390B 29.9 32.2

380 1 K61 L220B 18.1 19.5

460 1 K58 L181B 15.0 16.1

575 1 K55 L147B 12.0 12.9

15 11

200 3(1) K76 L650B 50.7 54.5

230 2 K75 L520B 44.1 47.4

380 2(1) K68 L322B 26.7 28.7

460 2(1) K64 L265B 22.0 23.7

575 2(1) K61 L220B 17.7 19.0

20 15

200 3 K78 L787B 64.8 69.7

230 3(1) K77 L710B 56.4 60.6

380 2 K72 L426B 34.1 36.7

460 2 K69 L352B 28.2 30.3

575 2 K64 L393B 22.7 24.4

25 18.5

200 3 K86 L107C 80.3 86.3

230 3 K83 L866B 69.8 75.0

380 2 K74 L520B 42.2 45.4

460 2 K72 L426B 34.9 37.5

575 2 K69 L352B 27.9 30.0

30 22

200 4(1) K88 L126C 96.7 104.0

230 3 K87 L107C 84.1 90.4

380 3(1) K76 L650B 50.9 54.7

460 3(1) K74 L520B 42.0 45.2

575 3(1) K72 L390B 33.7 36.2

40 30

380 3 K83 L866B 69.8 75.0

460 3 K77 L710B 57.7 62.0

575 3 K74 L593B 46.1 49.6

50 37

380 3 K87 L107C 86.7 93.2

460 3 K83 L950B 71.6 77.0

575 3 K77 L710B 57.3 61.6

60 45

380 4(1) K89 L126C 102.5 110.2

460 4(1) K87 L107C 84.6 91.0

575 4(1) K78 L866B 67.7 72.8

Table 29 - 60 Hz 6" Motors

1. Motor Inspection

A. Verify that the model, hp or kW, voltage, phase and hertz on the motor nameplate match the

installation requirements.

B. Check that the motor lead assembly is not damaged.

C. Measure insulation resistance using a 500 or 1000 volt DC megohmmeter from each lead wire to the

motor frame. Resistance should be at least 200 megohms without drop cable.

D. Keep a record of motor model number, hp or kW, voltage, and serial number (S/N).

(S/N is stamped in shell above the nameplate. A typical example, S/N 07A18 01-0123)

2. Pump Inspection

A. Check that the pump rating matches the motor.

B. Check for pump damage and verify that the pump shaft turns freely.

3. Pump/Motor Assembly

A. If not yet assembled, check that pump and motor mounting faces are free from dirt, debris and uneven

paint thickness.

B. Pumps and motors over 5 hp should be assembled in the vertical position to prevent stress on pump

brackets and shafts. Assemble the pump and motor together so their mounting faces are in contact and

then tighten assembly bolts or nuts evenly to manufacturer speciﬁ cations.

C. If accessible, check that the pump shaft turns freely.

D. Assemble the pump lead guard over the motor leads. Do not cut or pinch lead wires during assembly or

installation.

4. Power Supply and Controls

A. Verify that the power supply voltage, hertz, and kVA capacity match motor requirements.

B. Verify control box hp and voltage matches motor (3-wire only).

C. Check that the electrical installation and controls meet all safety regulations and match the motor

requirements, including fuse or circuit breaker size and motor overload protection. Connect all metal

plumbing and electrical enclosures to the power supply ground to prevent shock hazard. Comply with

national and local codes.

5. Lightning and Surge Protection

A. Use properly rated surge (lightning) arrestors on all submersible pump installations. Motors 5 hp and

smaller, which are marked “Equipped with Lightning Arrestors”, contain internal arrestors.

B. Ground all above ground arrestors with copper wire directly to the motor frame, or to metal drop pipe or

casing which reaches below the well pumping level. Connecting to a ground rod does not provide good

surge protection.

6. Electrical Drop Cable

A. Use submersible cable sized in accordance with local regulations and the cable charts, see pages 11 and 16-21.

Ground motor per national and local codes.

B. Include a ground wire to the motor and surge protection, connected to the power supply ground if

required by codes. Always ground any pump operated outside a drilled well.

7. Motor Cooling

A. Ensure at all times that the installation provides adequate motor cooling; see page 6 for details.

8. Pump/Motor Installation

A. Splice motor leads to supply cable using electrical grade solder or compression connectors, and carefully

insulate each splice with watertight tape or adhesive-lined shrink tubing, as shown in motor or pump

installation data.

B. Support the cable to the delivery pipe every 10 feet (3 meters) with straps or tape strong enough to

prevent sagging. Use padding between cable and any metal straps.

C. A check valve in the delivery pipe is recommended. More than one check valve may be required,

depending on valve rating and pump setting; see page 5 for details.

D. Assemble all pipe joints as tightly as practical, to prevent unscrewing from motor torque. Torque should

be at least 10 pound feet per hp (2 meter-KG per kW).

E. Set the pump far enough below the lowest pumping level to assure the pump inlet will always have at

least the Net Positive Suction Head (NPSH) speciﬁ ed by the pump manufacturer. Pump should be at

least 10 feet (3 meters) from the bottom of the well to allow for sediment build up.

❑

Form No. 3656 02/07

Submersible Pump Installation Check List

F. Check insulation resistance as pump/motor assembly is lowered into the well. Resistance may drop

gradually as more cable enters the water, but any sudden drop indicates possible cable, splice or motor

lead damage; see page 44.

9. After Installation

A. Check all electrical and water line connections and parts before starting the pump.

B. Start the pump and check motor amps and pump delivery. If normal, continue to run the pump until delivery is

clear. If three-phase pump delivery is low, it may be running backward. Rotation may be reversed (with power off)

by interchanging any two motor lead connections to the power supply.

C. Check three-phase motors for current balance within 5% of average, using motor manufacturer instructions.

Imbalance over 5% will cause higher motor temperatures and may cause overload trip, vibration, and reduced life.

D. Verify that starting, running and stopping cause no signiﬁ cant vibration or hydraulic shocks.

E. After at least 15 minutes running time, verify that pump output, electrical input, pumping level, and other

characteristics are stable and as speciﬁ ed.

Date _____________________ Filled In By ____________________________________________________

Notes _________________________________________________________________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________

❑

Submersible Pump Installation Check List

RMA No. _____________

INSTALLER’S NAME ___________________________ OWNER’S NAME _________________________________

ADDRESS ___________________________________ ADDRESS ______________________________________

CITY __________________ STATE_____ ZIP________ CITY ____________________ STATE_____ ZIP________

PHONE (____) _____________ FAX (____) _________ PHONE (____) _____________ FAX (____)____________

CONTACT NAME ______________________________ CONTACT NAME ________________________________

WELL NAME/ID _______________________________ DATE INSTALLED __________ DATE FAILED__________

WATER TEMPERATURE ________ °F or ________ °C

Motor:

Motor No. __________________ Date Code ___________________ hp ________ Voltage _________ Phase ______

Pump:

Manufacturer _________________ Model No. _________ Curve No. _________ Rating: ______ gpm@______ft TDH

NPSH Required ___________ ft NPSH Available_________ ft Actual Pump Delivery__________gpm@ ______ psi

Operating Cycle ______________ON (Min/h) _________________ OFF (min/h) (Circle Min or h as appropriate)

YOUR NAME ___________________________________________________________ DATE ______/______/______

WELL DATA:

Total Dynamic Head ________________ft

Casing Diameter __________________ in

Drop Pipe Diameter ________________ in

Static Water Level __________________ft

Drawdown (pumping) Water Level _____ft

Check Valves at _________ & _______ &

_________ & _______ ft

❑ Solid ❑ Drilled

Pump Inlet Setting _________________ft

Flow Sleeve: ___No____Yes; Dia. _____in

Casing Depth ______________________ft

❑ Well Screen ❑ Perforated Casing

From_____to_____ft & ______to______ft

Well Depth ________________________ft

TOP PLUMBING:

Please sketch the plumbing after the well head

(check valves, throttling valves, pressure tank, etc.)

and indicate the setting of each device.

Form No. 2207 8/00

Submersible Motor Installation Record

PUMP

PANEL

SERVICE

ENTRANCE

Power Supply:

Cable: Service Entrance to Control ____________ft_______ AWG/MCM ❑ Copper ❑ Aluminum

❑ Jacketed ❑ Individual Conductors

Cable: Control to Motor ____________ft________ AWG/MCM ❑ Copper ❑ Aluminum

❑ Jacketed ❑ Individual Conductors

Transformers:

kVA __________ #1 __________ #2 __________ #3

Initial Megs

(motor & lead) T1________T2_______T3________

Final Megs

(motor, lead & cable) T1______T2______T3______

Incoming Voltage:

No Load L1-L2______ L2-L3_______L1-L3_______

Full Load L1-L2______ L2-L3_______L1-L3_______

Running AMPS:

HOOKUP 1:

Full Load L1______L2_______L3_______

% Unbalance______

HOOKUP 2:

Full Load L1______L2_______L3_______

% Unbalance______

HOOKUP 3:

Full Load L1______L2_______L3_______

% Unbalance______

Ground Wire Size ___________________AWG/MCM

Motor Surge Protection ❑ Yes ❑ No

Variable Frequency Drives:

Manufacturer_________________ Model ______________ Output Frequency: _________ Hz Min _________ Hz Max

Cooling Flow at Min. Freq. ___________________________ Cooling Flow at Max. Freq.________________________

Approved Overload: ❑ Built-in ________ ❑ External Model: (per above) ❑ Cables: (per above) Set Amps __________

Start Time ____________sec Stop Mode ❑ Coast __________sec ❑ Ramp __________ sec

❑ Output ﬁ lter ___________ ❑ Reactor _______________% Make __________ Model ___________ ❑ None

Maximum Load AMPS:

Drive Meter Input Amps Line 1 __________ Line 2 __________ Line 3 __________

Drive Meter Output Amps Line 1 __________ Line 2 __________ Line 3 __________

Test Ammeter Output Amps Line 1 __________ Line 2 __________ Line 3 __________

Test Ammeter Make ________________________ Model ________________________

Control Panel:

Panel Manufacturer______________________________

Short Circuit Device

❑ Circuit Breaker Rating________Setting_____

❑ Fuses Rating___________ Type__________

❑ Standard ❑ Delay

Starter Manufacturer_____________________________

Starter Size ___________________________________

Type of Starter ❑ Full Voltage ❑ Autotransformer

❑ Other:___________Full Voltage in _____sec

Heater Manufacturer_____________________________

Number_____________Adjustable Set at _______amps.

SubMonitor/Subtrol-Plus ❑ No ❑ Yes

Registration No. ________

If yes,

Overload Set? ❑ No ❑ Yes Set at _______amps.

Underload Set? ❑ No ❑ Yes Set at _______amps.

Controls are Grounded to:

❑ Well Head ❑ Motor ❑ Rod ❑ Power Supply

Submersible Motor Installation Record

Submersible Motor Booster Installation Record

Date ______ /______/_______ Filled In By _______________________________ RMA No. _______________

Installation:

Owner/User ________________________________________________ Telephone (______) ____________________

Address ____________________________________________City _______________ State ______ Zip __________

Installation Site, If Different _________________________________________________________________________

Contact ___________________________________________________ Telephone (______) ____________________

System Application________________________________________________________________________________

_______________________________________________________________________________________________

System Manufactured By_____________________________Model ________________ Serial No. _______________

System Supplied By_________________________________ City _________________ State ______ Zip _________

Is this a “HERO” system (10.0 - 10.5 PH)? ❑ Yes ❑ No

Motor:

Model No. _______________ Serial No. _______________ Date Code ______

Horsepower ______ Voltage ______ ❑ Single-Phase ❑ Three-Phase Diameter ______ in

Slinger Removed? ❑ Yes ❑ No Check Valve Plug Removed? ❑ Yes ❑ No

Motor Fill Solution ❑ Standard ❑ DI Water

Pump:

Manufacturer _______________ Model _______________ Serial No. _______________

Stages ______ Diameter ________ Flow Rate Of ________ gpm At ______TDH

Booster Case Internal Diameter ________ Material _______________

Controls and Protective Devices:

SubMonitor? ❑ Yes ❑ No If Yes, Warranty Registration No._______________________________________

If Yes, Overload Set? ❑ Yes ❑ No ______ Set At _________________________

Underload Sets? ❑ Yes ❑ No ______ Set At _________________________

VFD or Reduced Voltage Starter? ❑ Yes ❑ No If Yes, Type __________________________________________

Mfr. ______________Setting ________% Full Voltage In ________sec

Pump Panel? ❑ Yes ❑ No If Yes, Mfr. ______________________________Size _______________________

Magnetic Starter/Contactor Mfr. ___________________________ Model __________________Size_______________

Heaters Mfr. _____________________ No. ____________ If Adjustable Set At _______________________________

Fuses Mfr. ____________________ Size ___________ Type _____________________________________________

Lightning/Surge Arrestor Mfr. ________________________ Model __________________________________________

Controls Are Grounded to __________________ with No. ________Wire

Inlet Pressure Control ❑ Yes ❑ No If Yes, Mfr.________ Model _______ Setting _____ psi Delay ____ sec

Inlet Flow Control ❑ Yes ❑ No If Yes, Mfr.________ Model _______ Setting _____ gpm Delay ____ sec

Outlet Pressure Control ❑ Yes ❑ No If Yes, Mfr.________ Model _______ Setting _____ psi Delay ____ sec

Outlet Flow Control ❑ Yes ❑ No If Yes, Mfr.________ Model _______ Setting _____ gpm Delay ____ sec

Water Temperature Control ❑ Yes ❑ No If Yes, Mfr.________ Model _________________________ Delay ____ sec

Set At ________ °F Or ______ °C Located _____________________________________

Form No. 3655 8/00

Submersible Motor Booster Installation Record

Insulation Check:

Initial Megs: Motor & Lead Only Black (T1/U1)_________ Yellow (T2/V1)________ Red (T3/W1)_________

Installed Megs: Motor, Lead, & Cable Black (T1/U1)_________ Yellow (T2/V1)________ Red (T3/W1)_________

Voltage To Motor:

Non-Operating: B-Y (T1/U1 - T2/V1)_____ Y-R (T2/V1 - T3/W1)_____ R-B (T3/W1 - T1/U1)_____

At Rated Flow of __________gpm B-Y (T1/U1 - T2/V1)_____ Y-R (T2/V1 - T3/W1)_____ R-B (T3/W1 - T1/U1)_____

At Open Flow ____________gpm B-Y (T1/U1 - T2/V1)_____ Y-R (T2/V1 - T3/W1)_____ R-B (T3/W1 - T1/U1)_____

Amps To Motor:

At Rated Flow of __________gpm Black (T1/U1)_________ Yellow (T2/V1)________ Red (T3/W1)_________

At Open Flow ____________gpm Black (T1/U1)_________ Yellow (T2/V1)________ Red (T3/W1)_________

At Shut Off* Black (T1/U1)_________ Yellow (T2/V1)________ Red (T3/W1)_________

*Do NOT run at Shut Off more than two (2) minutes.

Inlet Pressure __________psi Outlet Pressure __________psi Water Temperature _______ °F or _______ °C

If you have any questions or problems, call the Franklin Electric Toll-Free Hot Line: 1-800-348-2420

Comments: _____________________________________________________________________________________

_______________________________________________________________________________________________

Please sketch the system

Submersible Motor Booster Installation Record

Application – Three-Phase Motors

Advance Controls: MDR3 Overload

AEG Series: B17S, B27S, B27-2

ABB Type: RVH 40, RVH65, RVP160,

T25DU, T25CT, TA25DU

AGUT: MT03, R1K1, R1L0, R1L3, TE set Class 5

Allen Bradley: Bulletin 193, SMP-Class 10 only

Automatic Switch Types: DQ, LR1-D, LR1-F,

LR2 Class 10

Benshaw: RSD6 (Class 10) Soft Start

Bharita C-H: MC 305 ANA 3

Clipsal: 6CTR, 6MTR

Cutler-Hammer: C316F, C316P, C316S, C310-set

at 6 sec max, Advantage Class10

Fanal Types: K7 or K7D through K400

Franklin Electric: Subtrol-Plus, SubMonitor

Fuji Types: TR-OQ, TR-OQH, TR-2NQ, TR- 3NQ,

TR-4NQ, TR-6NQ, RCa 3737-ICQ & ICQH

Furnas Types: US15 48AG & 48BG, 958L,

ESP100-Class 10 only, 3RB10-Class 10

General Electric: CR4G, CR7G, RT*1, RT*2,

RTF3, RT*4, CR324X-Class 10 only

Kasuga: RU Set Operating Time Code = 10 &

time setting 6 sec max

Klockner-Moeller Types: ZOO, Z1, Z4, PKZM1,

PKZM3 & PKZ2

Lovato: RC9, RC22, RC80, RF9, RF25 & RF95

Matsushita: FKT-15N, 15GN, 15E, 15GE, FT-15N,

FHT-15N

Mitsubishi: ET, TH-K12ABKP, TH-K20KF,

TH-K20KP, TH-K20TAKF, TH-K60KF,

TH-K60TAKF

Omron: K2CM Set Operating Timing Code = 10 &

time setting 6 sec max, SE-KP24E time setting

6 sec max

Riken: PM1, PM3

Samwha: EOCRS Set for Class 5, EOCR-ST,

EOCR-SE, EOCR-AT time setting 6 sec max

Siemens Types: 3UA50, -52, -54, -55, -58, -59, -60,

-61, -62, -66, -68, -70, 3VUI3, 3VE, 3UB

(Class 5)

Sprecher and Schuh Types: CT, CT1, CTA 1,

CT3K, CT3-12 thru CT3-42, KTA3,

CEF1 & CET3 set at 6 sec max, CEP 7 Class

10, CT4, 6, & 7, CT3, KT7

Square D/Telemecanique: Class 9065 Types:

TD, TE, TF, TG, TJ, TK, TR, TJE &TJF (Class

10), LR1-D, LR1-F, LR2 Class 10, Types

18A, 32A, SS-Class 10, SR-Class 10 and

63-A-LB Series. Integral 18,32,63, GV2-L,

GV2-M, GV2-P, GV3-M (1.6-10 amp only)

LR9D, SF Class 10, ST Class 10, LT6 (Class

5 or 10), LRD (Class 10), Motor Logic

(Class10)

Recommended Adjustable Overload Relays

Toshiba Type: 2E RC820, set at 8 sec max.

WEG: RW2

Westinghouse Types: FT13, FT23, FT33, FT43, K7D, K27D, K67D,

Advantage (Class 10), MOR, IQ500 (Class 5)

Westmaster: OLWROO and OLWTOO sufﬁ x D thru P

Other relay types from these and other manufacturers may or may

not provide acceptable protection, and they should not be used

without approval of Franklin Electric.

Some approved types may only be available for part of the listed

motor ratings. When relays are used with current transformers,

relay setting is the speciﬁ ed amps divided by the transformer ratio.

HP KW VOLTS

NEMA

STARTER

SIZE

HEATERS FOR

OVERLOAD RELAYS

ADJUSTABLE

RELAYS

(NOTE 3)

FURNAS

(NOTE 1)

G.E.

(NOTE 2) SET MAX.

40 30

380 3 K78 L866B 68 73

460 3 K77 L710B 56 60

575 3 K73 L520B 45 48

50 37

380 3 K86 L107C 81 87

460 3 K78 L866B 68 73

575 3 K77 L710B 56 60

60 45

380 4(1) K89 L126C 101 108

460 4(1) K86 L107C 83 89

575 4(1) K78 L787B 64 69

75 55

380 4 K92 L142C 121 130

460 4(1) K89 L126C 100 107

575 4(1) K85 L950C 79 85

100 75

380 5(1) K28 L100B 168 181

460 4 K92 L155C 134 144

575 4 K90 L142C 108 116

125 90

380 5 K32 L135B 207 223

460 5(1) K29 L111B 176 189

575 5(1) K26 L825A 140 150

150 110

380 5 - L147B 248 267

460 5(1) K32 L122B 206 221

575 5(1) K28 L100B 165 177

175 130

380 6 K26 - 270 290

460 5 K33 L147B 233 250

575 5 K31 L111B 186 200

200 150

380 6 K27 - 316 340

460 5 K33 L165B 266 286

575 5 K32 L135B 213 229

Table 30 - 60 Hz 8" Motors

Application – Three-Phase Motors

Applications

SubMonitor is designed to protect 3-phase pumps/

motors with service factor amp ratings (SFA) from 5

to 350 A (approx. 3 to 200 hp). Current, voltage, and

motor temperature are monitored using all three legs

and allows the user to set up the SubMonitor quickly

and easily.

Protects Against

• Under/Overload

• Under/Overvoltage

• Current Unbalance

• Overheated Motor

(if equipped with Subtrol Heat Sensor)

• False Start (Chattering)

• Phase Reversal

In some installations, power supply limitations make it

necessary or desirable to increase the power factor of a

submersible motor. The table lists the capacitive kVAR

required to increase the power factor of large Franklin

three-phase submersible motors to the approximate

values shown at maximum input loading.

Capacitors must be connected on the line side of the

overload relay, or overload protection will be lost.

Values listed are total required (not per phase).

Table 31 kVAR Required 60 Hz

MOTOR KVAR REQUIRED FOR PF OF:

HP KW 0.90 0.95 1.00

5 3.7 1.2 2.1 4.0

7.5 5.5 1.7 3.1 6.0

10 7.5 1.5 3.3 7.0

15 11 2.2 4.7 10.0

20 15 1.7 5.0 12.0

25 18.5 2.1 6.2 15.0

30 22 2.5 7.4 18.0

40 30 4.5 11.0 24.0

50 37 7.1 15.0 32.0

60 45 8.4 18.0 38.0

75 55 6.3 18.0 43.0

100 75 11.0 27.0 60.0

125 90 17.0 36.0 77.0

150 110 20.0 42.0 90.0

175 130 9.6 36.0 93.0

200 150 16.0 46.0 110.0

SubMonitor Three-Phase Protection

Power Factor Correction

Application – Three-Phase Motors

O.L. CONTACTS

PRESSURE SWITCH OR

OTHER CONTROL DEVICE

COIL

L1 L2 L3

FUSES

CONTACTS

OVERLOAD

HEATERS AND/OR

MOTOR

SUBTROL PLUS

O.L. CONTACTS

PRESSURE SWITCH OR

OTHER CONTROL DEVICE

L1 L2 L3

FUSES

CONTACTS

OVERLOAD

HEATERS AND/OR

MOTOR

TRANSFORMER

COIL

FUSE

SUBTROL PLUS

O.L. CONTACTS

PRESSURE SWITCH OR

OTHER CONTROL DEVICE

L1 L2 L3

FUSES

CONTACTS

OVERLOAD

HEATER AND/OR

MOTOR

COIL TO SEPARATE

CONTROL VOLTAGE

SOURCE

SUBTROL DEVICE

Three-phase combination magnetic starters have two

distinct circuits: a power circuit and a control circuit.

The power circuit consists of a circuit breaker or

fused line switch, contacts, and overload heaters

connecting incoming power lines L1, L2, L3 and the

three-phase motor.

External Voltage Controls

Control of a power circuit by a lower circuit voltage can

also be obtained by connecting to a separate control

voltage source. The coil rating must match the control

voltage source, such as 115 or 24 volts.

The control circuit consists of the magnetic coil, overload

contacts and a control device such as a pressure switch.

When the control device contacts are closed, current

ﬂ ows through the magnetic contactor coil, the contacts

close, and power is applied to the motor. Hand-Off-Auto

switches, start timers, level controls and other control

devices may also be in series in the control circuit.

Line Voltage Control

This is the most common type of control encountered.

Since the coil is connected directly across the power

lines L1 and L2, the coil must match the line voltage.

Low Voltage Transformer Control

This control is used when it is desirable to operate push

buttons or other control devices at some voltage lower

than the motor voltage. The transformer primary must

match the line voltage and the coil voltage must match

the secondary voltage of the transformer.

FIG. 7

FIG. 8

FIG. 9

Three-Phase Starter Diagrams

Application – Three-Phase Motors

50 = 0.02 or 2%

A full three-phase supply is recommended for all three-

phase motors, consisting of three individual transformers

or one three-phase transformer. So-called “open” delta

or wye connections using only two transformers can be

used, but are more likely to cause problems, such as

poor performance, overload tripping or early motor failure

due to current unbalance.

Transformer rating should be no smaller than listed in

table 4 for supply power to the motor alone.

1. Established correct motor rotation by running in both

directions. Change rotation by exchanging any two

of the three motor leads. The rotation that gives the

most water ﬂ ow is always the correct rotation.

2. After correct rotation has been established, check the

current in each of the three motor leads and calculate

the current unbalance as explained in 3 below.

If the current unbalance is 2% or less, leave the leads

as connected.

If the current unbalance is more than 2%, current

readings should be checked on each leg using each

of three possible hook-ups. Roll the motor leads

across the starter in the same direction to prevent

motor reversal.

3. To calculate percent of current unbalance:

A. Add the three line amps values together.

B. Divide the sum by three, yielding average

current.

C. Pick the amp value which is furthest from the

average current (either high or low).

D. Determine the difference between this amp

value (furthest from average) and the average.

E. Divide the difference by the average. Multiply the

result by 100 to determine percent of unbalance.

4. Current unbalance should not exceed 5% at service

factor load or 10% at rated input load. If the unbalance

cannot be corrected by rolling leads, the source of

the unbalance must be located and corrected. If,

on the three possible hookups, the leg farthest from

the average stays on the same power lead, most

of the unbalance is coming from the power source.

However, if the reading farthest from average moves

with the same motor lead, the primary source of

unbalance is on the “motor side” of the starter. In this

instance, consider a damaged cable, leaking splice,

poor connection, or faulty motor winding.

Checking and Correcting Rotation and Current Unbalance

T1 T3

L1 L2 L3

T3 T2

L1 L2 L3

T2 T1

L1 L2 L3

1st Hook Up 2nd Hook Up 3rd Hook Up

supply

starter

motor

EXAMPLE:

T1 = 51 amps T3 = 50 amps T2 = 50 amps

T2 = 46 amps T1 = 49 amps T3 = 48 amps

T3 = 53 amps T2 = 51 amps T1 = 52 amps

Total = 150 amps Total = 150 amps Total = 150 amps

+++

50 - 46 = 4 amps 50 - 49 = 1 amp 50 - 48 = 2 amps

50 = 0.04 or 4%

Phase designation of leads for CCW rotation viewing

shaft end.

To reverse rotation, interchange any two leads.

Phase 1 or “A” - Black, T1, or U1

Phase 2 or “B” - Yellow, T2, or V1

Phase 3 or “C” - Red, T3, or W1

NOTICE: Phase 1, 2 and 3 may not be L1, L2 and L3.

FIG. 10

FULL THREE-PHASE FIG. 11

OPEN DELTA

150

3 = 50 amps 150

3 = 50 amps

50 = 0.08 or 8%

150

3 = 50 amps

Three-Phase Power Unbalance

Application – Three-Phase Motors

Three-Phase Motor Lead Identiﬁ cation

Each motor lead is numbered with two markers, one near each end. To reverse rotation, interchange any two line connections.

L1 L2 L3

Connections for across-the-line starting,

running, and any reduced voltage starting

except WYE-DELTA type starters.

WYE-DELTA starters connect the motor as

shown below during starting, then change to

the running connection shown at the left.

There are a number of different types of phase converters

available. Each generates three-phase power from a

single-phase power line.

In all phase converters, the voltage balance is critical to

current balance. Although some phase converters may

be well balanced at one point on the system-operating

curve, submersible pumping systems often operate

at differing points on the curve as water levels and

operating pressures ﬂ uctuate. Other converters may be

well balanced at varying loads, but their output may vary

widely with ﬂ uctuations in the input voltage.

The following guidelines have been established for

submersible installations to be warrantable when used

with a phase converter.

1. Limit pump loading to rated horsepower. Do not load

into motor service factor.

2. Maintain at least 3 ft/s ﬂ ow past the motor. Use a ﬂ ow

sleeve when necessary.

3. Use time delay fuses or circuit breakers in pump

panel. Standard fuses or circuit breakers do not

provide secondary motor protection.

4. SubMonitor may be used with electro mechanical

type phase converters, however special connections

are required. Consult SubMonitor Manual for

connections of receiver and lightning arrestor.

5. SubMonitor will not work with electronic solid state

phase converters.

6. Current unbalance must not exceed 10%.

T5-V2

(YELLOW)

T2-V1

(YELLOW)

T4-U2

(BLACK)

T1-U1

(BLACK)

T6-W2

(RED)

T3-W1

(RED)

LEADS LOCATED HERE ONLY

FOR 3 LEAD

(

DOL

)

MOTORS

CHECK VALVE OR

PIPE PLUG ON RIGHT

SIDE FACING MOTOR

SHAFT

WARNING: When installing

6-lead motors extra care

must be used to ensure lead

identiﬁ cation at the surface.

Leads must be marked and

connected per diagram. Motor

leads are not connected red to

red, yellow to yellow, etc.

Line Connections — Six-Lead Motors

90° Lead Spacing

Phase Converters

Application – Three-Phase Motors

All Franklin three-phase submersible motors are suitable

for full-voltage starting. Under this condition the motor

speed goes from zero to full speed within a half second

or less. The motor current goes from zero to locked rotor

amps, then drops to running amps at full speed. This

may dim lights, cause momentary voltage dips

to other electrical equipment, and shock power

distribution transformers.

In some cases the power companies may require

reduced-voltage starters to limit this voltage dip. There

are also times when reduced-voltage starters may be

desirable to reduce motor starting torque thus reducing

the stress on shafts, couplings, and discharge piping.

Reduced-voltage starters also slow the rapid acceleration

of the water on start-up to help control upthrust and

water hammer.

Reduced-voltage starters may not be required if the

maximum recommended cable length is used. With

maximum recommended cable length there is a 5%

voltage drop in the cable at running amps, resulting in

about 20% reduction in starting current and about 36%

reduction in starting torque compared to having rated

voltage at the motor. This may be enough reduction in

starting current so that reduced-voltage starters are

not required.

Three-Lead Motors: Autotransformer or solid-state

reduced-voltage starters may be used for soft-starting

standard three-phase motors.

When autotransformer starters are used, the motor

should be supplied with at least 55% of rated voltage to

ensure adequate starting torque. Most autotransformer

starters have 65% and 80% taps. Setting the taps on

these starters depends on the percentage of the

maximum allowable cable length used in the system.

If the cable length is less than 50% of the maximum

allowable, either the 65% or the 80% taps may be used.

When the cable length is more than 50% of allowable,

the 80% tap should be used.

Six-Lead Motors: Wye-Delta starters are used with

six-lead Wye-Delta motors. All Franklin 6" and 8"

three-phase motors are available in six-lead Wye-Delta

construction. Consult the factory for details and availability.

Part winding starters are not compatible with Franklin

Electric submersible motors and should not be used.

Wye-Delta starters of the open-transition type, which

momentarily interrupt power during the starting cycle, are

not recommended. Closed-transition starters have no

interruption of power during the start cycle and can be

used with satisfactory results.

Reduced-voltage starters have adjustable settings

for acceleration ramp time, typically preset at 30

seconds. They must be adjusted so the motor is at

full voltage within THREE SECONDS MAXIMUM to

prevent excessive radial and thrust bearing wear.

If Subtrol-Plus or SubMonitor is used the

acceleration time must be set to TWO SECONDS

MAXIMUM due to the 3 second reaction time of the

Subtrol-Plus or SubMonitor.

Solid-state starters AKA soft starts may not be

compatible with Subtrol-Plus/SubMonitor. However,

in some cases a bypass contactor has been used.

Consult the factory for details.

During shutdown, Franklin Electric’s

recommendation is for the power to be removed,

allowing the pump/motor to coast down. Stopping

the motor by ramping down the voltage is possible,

but should be limited to three (3) seconds maximum.

Franklin Electric offers three different types of motors for

non-vertical applications.

1. The Booster motors are speciﬁ cally designed for

booster applications. They are the “Best Choice”

for sealed Reverse Osmosis applications.

These motors are the result of two years of focused

development and bring additional value and durability

to booster module systems. These motors are

only available to OEMs or Distributors who have

demonstrated capability in Booster Module systems

design and operation and adhere to Franklin’s

Application Manual requirements.

2. The Hi-Temp motors have many of the internal

design features of the Booster motor. It’s additional

length allows for higher temperature handling and

the Sand Fighter sealing system provides greater

abrasion resistance. One or both of these conditions

are often experienced in open atmosphere

applications such as lakes, ponds, etc.

3. The Standard Vertical Water Well (40-125 hp)

motors can be adapted to non-vertical applications

when applied per the below guidelines. However,

they will be more sensitive to application variances

than the other two designs.

All of the above motors must be applied per the

guidelines listed below. In addition, for all applications

where the motor is applied in a sealed system, a

Submersible Motor Booster Installation Record (Form

3655) or its equivalent must be completed at startup and

received by Franklin Electric within 60 days. A sealed

system is one where the motor and pump intake are

mounted in a sleeve and the water feeding the pump

intake is not open to the atmosphere.

Reduced Voltage Starters

Inline Booster Pump Systems

Application – Three-Phase Motors

Design And Operational Requirements

1. Non-Vertical Operation: Vertical Shaft-up (0°) to

Horizontal (90°) operation is acceptable as long as

the pump transmits “down-thrust” to the motor within

3 seconds after start-up and continuously during

operation. However, it is best practice to provide a

positive slope whenever it is possible, even if it is only

a few degrees.

2. Motor, Sleeve, and Pump Support System: The

booster sleeve ID must be sized according to the

motor cooling and pump NPSHR requirements. The

support system must support the motor’s weight,

prevent motor rotation and keep the motor and pump

aligned. The support system must also allow for

thermal axial expansion of the motor without creating

binding forces.

3. Motor Support Points: A minimum of two support

points are required on the motor. One in the motor/

pump ﬂ ange connection area and one in the bottom

end of the motor area. The motor castings, not the

shell area, are recommended as support points. If the

support is a full length support and/or has bands in

the shell area, they must not restrict heat transfer or

deform the shell.

4. Motor Support Material and Design: The support

system shall not create any areas of cavitation or

other areas of reduced ﬂ ow less than the minimum

rate required by this manual. They should also be

designed to minimize turbulence and vibration and

provide stable alignment. The support materials and

locations must not inhibit the heat transfer away from

the motor.

5. Motor and Pump Alignment: The maximum

allowable misalignment between the motor, pump,

and pump discharge is 0.025 inch per 12 inches of

length (2 mm per 1000 mm of length). This must be

measured in both directions along the assembly using

the motor/pump ﬂ ange connection as the starting

point. The booster sleeve and support system must

be rigid enough to maintain this alignment during

assembly, shipping, operation and maintenance.

6. The best motor lubrication and heat resistance is

obtained with the factory based propylene glycol

ﬁ ll solution. Only when an application MUST HAVE

deionized (DI) water should the factory ﬁ ll solution

be replaced. When a deionized water ﬁ ll is required,

the motor must be derated as indicated on the below

chart. The exchange of the motor ﬁ ll solution to DI

Inline Booster Pump Systems (continued)

water must be done by an approved Franklin service

shop or representative using a vacuum ﬁ ll system

per Franklin’s Motor Service Manual instruction. The

motor shell then must be permanently stamped with a

D closely behind the Serial Number.

The maximum pressure that can be applied to the

motor internal components during the removal of the

factory ﬁ ll solution is 7 psi (0.5 bar.)

First: Determine maximum Feed Water Temperature

that will be experienced in this application. If the

feed water exceeds the maximum ambient of the

motor, both the DI water derating and a hot water

application derating must be applied.

Second: Determine the Pump Load Multiplier from the

appropriate Service Factor curve. (Typical 1.15

Service Factor is for 60 Hz ratings &1.00 Service

Factor for 50 Hz ratings).

Third: Multiply the Pump Load Requirement times the pump

load multiplier number indicated on the vertical axis

to determine the Minimum Motor Nameplate Rating.

Fourth: Select a motor with a nameplate equal or higher than

the above calculated value.

7. Motor Alterations - Sand Slinger & Check Valve

Plug: On 6" and 8" motors, the rubber sand slinger

located on the shaft must be removed. The pipe plug

covering the check valve must be removed from Ni-

resist and 316 SS motors. The special Booster motor

already has these alterations made.

8. Frequency of Starts: Fewer than 10 starts per

24-hour period are recommended. Allow at least 20

minutes between shutdown and start-up of the motor.

FIG. 12

1.8

1.7

1.6

1.5

1.4

1.3

1.2

1.1

130 25 20 15 10

1.75

1.65

1.55

1.45

1.35

1.25

1.15

1.05

1.00 Service Factor (50Hz)

1.15 Service Factor (60Hz)

Derating Factor for Motors That Must Have Their Factory Fill

Replaced With Deionized Water 8" Encapsulated Motor

Feed Water Temperature (°C)

Pump Load Multiplier

Application – Three-Phase Motors

9. Controls-Soft Starters and VFDs: Reduced voltage

starters and variable speed drives (inverter drives)

may be used with Franklin three-phase submersible

motors to reduce starting current, upthrust, and

mechanical stress during start-up. The guidelines

for their use with submersible motors are different

than with normal air cooled motor applications.

Refer to the Franklin Electric Application, Installation

and Maintenance (AIM) Manual Reduced Voltage

Starters section or Variable Speed Submersible

Pump Operation, Inverter Drives sections for speciﬁ c

details including required ﬁ ltering.

10. Motor Overload Protection: Submersible motors

require properly sized ambient compensated

Class 10 quick-trip overloads per Franklin’s AIM

Manual guidelines to protect the motor. Class 20

or higher overloads are NOT acceptable. Franklin’s

SubMonitor is strongly recommended for all large

submersibles since it is capable of sensing motor

heat without any additional wiring to the motor.

Applications using Soft Starters with a SubMonitor

require a start-up bypass - consult the factory for

details. SubMonitor can not be used in applications

using a VFD control.

11. Motor Surge Protection: Properly sized, grounded

and dedicated motor surge arrestors must be

installed in the supply line of the booster module as

close to the motor as possible. This is required on

all systems including those using soft-starters and

variable speed drives (inverter drives).

12. Wiring: Franklin’s lead assemblies are only sized

for submerged operation in water to the motor

nameplate maximum ambient temperature and

may overheat and cause failure or serious injury

if operated in air. Any wiring not submerged must

meet applicable national and local wiring codes and

Inline Booster Pump Systems (continued)

Franklin Cable Chart tables 16-21. (Notice: wire size,

wire rating and insulation temperature rating must be

known when determining its suitability to operate in

air or conduit. Typically, for a given size and rating,

as the insulation temperature rating increases its

ability to operate in air or conduit also increases.)

13. Check Valves: Spring-loaded check valves must

be used on start-up to minimize motor upthrusting,

water hammer, or in multiple booster (parallel)

applications to prevent reverse ﬂ ow.

14. Pressure Relief Valves: A pressure relief valve is

required and must be selected to ensure that, as the

pump approaches shut-off, it never reaches the point

that the motor will not have adequate cooling ﬂ ow

past it.

15. System Purge (Can Flooding): An air bleeder

valve must be installed on the booster sleeve so that

ﬂ ooding may be accomplished prior to booster start-

up. Once ﬂ ooding is complete, the booster should

be started and brought up to operating pressure as

quickly as possible to minimize the duration of an

upthrust condition. At no time should air be allowed

to gather in the booster sleeve because this will

prevent proper cooling of the motor and permanently

damage it.

16. System Flush – Must Not Spin Pump: Applications

may utilize a low ﬂ ow ﬂ ushing operation. Flow

through the booster sleeve must not spin the pump

impellers and the motor shaft. If spinning takes

place, the bearing system will be permanently

damaged and the motor life shortened. Consult the

booster pump manufacturer for maximum ﬂ ow rate

through the pump when the motor is not energized.

Based on 30 °C maximum ambient with cable length of 100 feet or less.

Table 37 Franklin Cable chart (See 12. Wiring)

CABLE

TEMP.

RATING

(°C)

MOTOR NAME-

PLATE RATED

AMPS FULL

LOAD

#10 AWG #8 AWG #6 AWG #4 AWG #2 AWG SOURCE OF CABLE

AMPACITY

IN AIR IN

CONDUIT IN AIR IN

CONDUIT

75 3-LEAD (DOL) 40A 28A 56A 40A 76A 52A 100A 68A 136A 92A US N.E.C., 2002 edition,

tables 310.16 & 310.17

6-LEAD (Y-∆)69A 48A 97A 69A 132A 90A 173A 118A 236A 19A

90 3-LEAD (DOL) 44A 32A 64A 44A 84A 60A 112A 76A 152A 104A US N.E.C., 2002 edition,

tables 310.16 & 310.17

6-LEAD (Y-∆)76A 55A 111A 76A 145A 104A 194A 132A 263A 180A

135

3-LEAD (DOL) 63A 46A 74A 51A 104A 74A 145A 98A 185A 126A Standard AAR (American

Association of Railroads)

RP-585

6-LEAD (Y-∆)109A 80A 127A 88A 180A 129A 251A 320A 320A 219A

Application – Three-Phase Motors

17. Open Atmosphere Booster Pump Systems: When

an open booster is placed in a lake, tank, etc. that is

open to atmospheric pressure, the water level must

provide sufﬁ cient head pressure to allow the pump

to operate above its NPSHR requirement at all times

and all seasons. Adequate inlet pressure must be

provided prior to booster start-up.

Four Continuous Monitoring System Requirements

for Sealed Booster Systems.

1. Water Temperature: Feed water on each

booster must be continuously monitored and

not allowed to exceed the motor nameplate

maximum ambient temperature at any time. IF

THE INLET TEMPERATURE EXCEEDS THE

MOTOR NAMEPLATE MAXIMUM AMBIENT

TEMPERATURE, THE SYSTEM MUST

SHUTDOWN IMMEDIATELY TO PREVENT

PERMANENT MOTOR DAMAGE. If feed water

temperatures are expected to be above the

allowable temperature, the motor must be derated.

See Franklin’s AIM Manual Hot Water Applications

section for derating guidelines. (The high

temperature feed water derating is in addition to the

exchange to DI water derating if the motor factory ﬁ ll

solution was exchanged to DI water.)

2. Inlet Pressure: The inlet pressure on each booster

module must be continuously monitored. It must

always be positive and higher than the NPSHR (Net

Positive Suction Head Requirement) of the pump.

A minimum of 20 PSIG (1.38 Bar) is required at all

times, except for 10 seconds or less when the motor

is starting and the system is coming up to pressure.

Inline Booster Pump Systems (continued)

Even during these 10 seconds the pressure must

remain positive and be higher than the NPSHR (Net

Positive Suction Head Requirement) of the pump.

PSIG is the actual value displayed on a pressure

gauge in the system piping. PSIG is the pressure

above the atmospheric conditions. If at any time

these pressure requirements are not being met, the

motor must be de-energized immediately to prevent

permanent damage to the motor. Once the motor is

damaged, it is usually not immediately noticeable,

but progresses and results in a premature motor

failure weeks or months after the damage occurred.

Motors that will be exposed to pressure in excess

of 500 psi (34.47 Bar) must undergo special high

pressure testing. Consult factory for details

and availability.

3. Discharge Flow: The ﬂ ow rate for each pump must

not be allowed to drop below the motor minimum

cooling ﬂ ow requirement. IF THE MOTOR MINIMUM

COOLING FLOW REQUIREMENT IS NOT BEING

MET FOR MORE THAN 10 SECONDS, THE

SYSTEM MUST BE SHUT DOWN IMMEDIATELY

TO PREVENT PERMANENT MOTOR DAMAGE.

4. Discharge Pressure: The discharge pressure

must be monitored to ensure that a downthrust load

toward the motor is present within 3 seconds after

start-up and continuously during operation.

IF THE MOTOR DISCHARGE PRESSURE IS NOT

ADEQUATE TO MEET THIS REQUIREMENT, THE

SYSTEM MUST BE SHUT DOWN IMMEDIATELY

TO PREVENT PERMANENT MOTOR DAMAGE.

Application – Three-Phase Motors

Franklin three-phase submersible motors are operable

from variable frequency inverter drives when applied

within guidelines below. These guidelines are based

on present Franklin information for inverter drives, lab

tests and actual installations, and must be followed

for warranty to apply. Franklin two-wire and three-wire

single-phase submersible motors are not recommended

for variable speed operation.

WARNING: There is a potential shock hazard from

contact with insulated cables from a PWM drive to

the motor. This hazard is due to high frequency

voltage content of a PWM drive output.

Load Capability: Pump load should not exceed

motor nameplate service factor amps at rated voltage

and frequency.

Frequency Range: Continuous between 30 Hz and

rated frequency (50 or 60 Hz). Operations above rated

frequency require special considerations, consult factory

for details.

Volts/Hz: Use motor nameplate volts and frequency

for the drive base settings. Many drives have means to

increase efﬁ ciency at reduced pump speeds by lowering

motor voltage. This is the preferred operating mode.

Voltage Rise-time or dV/dt: Limit the peak voltage to

the motor to 1000 V and keep the rise-time greater than

2 µsec. Alternately stated: keep dV/dt < 500 V/µsec. See

Filters or Reactors below.

Motor Current Limits: Load no higher than motor

nameplate service factor amps. For 50 Hz ratings,

nameplate maximum amps are rated amps. See

Overload Protection below.

Motor Overload Protection: Protection in the drive

(or separately furnished) must be set to trip within 10

seconds at 5 times motor maximum nameplate amps in

any line, and ultimately trip within 115% of nameplate

maximum amps in any line.

Subtrol-Plus and SubMonitor: Franklin’s Subtrol-Plus

and SubMonitor protection systems ARE NOT USABLE

on VFD installations.

Variable Speed Submersible Pump Operation, Inverter Drives

Start and Stop: One second maximum ramp-up and

ramp-down times between stopped and 30 Hz Stopping

by coast-down is preferable.

Successive Starts: Allow 60 seconds before restarting.

Filters or Reactors: Required if all three of the following

conditions are met: (1) Voltage is 380 or greater and

(2) Drive uses IGBT or BJT switches (rise-times < 2

µsec) and (3) Cable from drive to motor is more than

50 ft (15.2 m) A low-pass ﬁ lter is preferable. Filters or

reactors should be selected in conjunction with the drive

manufacturer and must be speciﬁ cally designed for

VFD operation.

Cable Lengths: Per Franklin’s cable tables unless a

reactor is used. If a long cable is used with a reactor,

additional voltage drop will occur between the VFD and

the motor. To compensate, set the VFD output voltage

higher than the motor rating in proportion to the reactor

impedance (102% voltage for 2% impedance, etc.).

Motor Cooling Flow: For installations that are

variable-ﬂ ow, variable-pressure, minimum ﬂ ow rates

must be maintained at nameplate frequency. In variable-

ﬂ ow, constant pressure installations, minimum ﬂ ow

rates must be maintained at the lowest ﬂ ow condition.

Franklin’s minimum ﬂ ow requirements for 4" motors :

0.25 ft/s (7.26 cm/sec) and for 6" and 8" motors: 0.5 ft/s

(15.24 cm/sec)

Carrier Frequency: Applicable to PWM drives only.

These drives often allow selection of the carrier

frequency. Use a carrier frequency at the low end of the

available range.

Miscellaneous: Franklin Electric three-phase motors

are not declared “Inverter Duty” motors per NEMA MG1

standards. The reason is Part 31 of NEMA standard

MG1 does not include a section covering encapsulated

winding designs. However, Franklin submersible motors

can be used with VFDs without problems and/or warranty

concerns provided these guidelines are followed.

Installation – All Motors

4” Super Stainless — Dimensions

(Standard Water Well)

1.508"

1.498"

1.48"

MAX

0.030" R

MAX

0.97"

0.79"

0.161" MAX LEAD

BOSS HEIGHT

3.75" DIA.

0.50" MIN.

FULL SPLINE

5/16 - 24 UNF-2A

MOUNTING STUDS

4” High Thrust — Dimensions

(Standard Water Well)

5.44" DIA.

0.250"

0.240"

3.000"

2.997" 1.0000"

0.9995" DIA.

.94" MIN.

FULL SPLINE 2.875"

2.869"

6.25"

CHECK

VALVE

15 TOOTH 16/32"

DIAMETRAL PITCH

1/2 - 20 UNF-2B

MOUNTING HOLES

0.75"

6” — Dimensions

(Standard Water Well)

8” — Dimensions

(Standard Water Well)

* Motor lengths and shipping weights are available on Franklin Electric’s web site (www.franklin-electric.com) or by

calling Franklin’s submersible hotline (800-348-2420).

1.508"

1.498"

1.48"

MAX

0.030" R

MAX

0.161" MAX LEAD

BOSS HEIGHT

3.75" DIA.

0.50" MIN.

FULL SPLINE

1.09"

0.91"

5/16 - 24 UNF-2A

MOUNTING STUDS

40 to 100 hp

5.000"

4.997"

5.130"

5.120"

1.69"

MIN FULL

SPLINE

0.240"

23 TOOTH 16/32"

DIAMETRAL PITCH

SHAFT DIA

1.5000"

1.4990"

CHECK

VALVE

WATER

WELL

MODELS

PIPE PLUG

STAINLESS

STEEL

MODELS

M8 x 1.25 6G

GROUND

SCREW

7.70" DIA

MAX

7.00"

FINNED

4.000"

3.990"

23 TOOTH 16/32"

DIAMETRAL PITCH

SHAFT DIA

1.5000"

1.4990"

5.130"

5.120"

M8 x 1.25 6G

GROUND

SCREW

2.75"

FINNED

4.000"

3.990"

125 to 200 hp

5.000"

4.997"

1.69"

MIN FULL

SPLINE

0.240"

CHECK

VALVE

7.70" DIA

MAX

MOUNTING HOLES

CLEARANCE FOR

5/8" BOLTS

1.06"

0.94"

1.06"

0.94"

Installation – All Motors

4" Motors:

15 to 20 ft-lb (20 to 27 Nm)

6" Motors:

50 to 60 ft-lb (68 to 81 Nm)

8" Motors with 1-3/16” to 1-5/8” Jam Nut:

50 to 60 ft-lb (68 to 81 Nm)

8" Motors with 4 Screw Clamp Plate:

Apply increasing torque to the screws equally in a

criss-cross pattern until 80 to 90 in-lb (9.0 to 10.2

Nm) is reached.

Jam nut tightening torques recommended for ﬁ eld

assembly are shown. Rubber compression set within the

ﬁ rst few hours after assembly may reduce the jam nut

torque. This is a normal condition which does not indicate

reduced seal effectiveness. Retightening is not required,

but is permissible and recommended if original torque

was questionable.

A motor lead assembly should not be reused. A new lead

assembly should be used whenever one is removed from

the motor, because rubber set and possible damage from

removal may prevent proper resealing of the old lead.

All motors returned for warranty consideration must

have the lead returned with the motor.

Assemble coupling with non-toxic FDA approved

waterproof grease such as Mobile FM102, Texaco

CYGNUS2661, or approved equivalent. This prevents

abrasives from entering the spline area and prolongs

spline life.

A common question is why motor leads are smaller than

speciﬁ ed in Franklin’s cable charts.

The leads are considered a part of the motor and actually

are a connection between the large supply wire and the

motor winding. The motor leads are short and there is

virtually no voltage drop across the lead.

In addition, the lead assemblies operate under water,

while at least part of the supply cable must operate in

air. Lead assemblies running under water operate cooler.

CAUTION: Lead assemblies on submersible motors

are suitable only for use in water and may overheat

and cause failure if operated in air.

Shaft Height and Free End Play

If the height, measured from the

pump-mounting surface of the

motor, is low and/or end play

exceeds the limit, the motor thrust

bearing is possibly damaged, and

should be replaced.

Tightening Motor Lead Connector Jam Nut

Table 41

Pump to Motor Coupling

Submersible Leads and Cables

MOTOR NORMAL

SHAFT HEIGHT

DIMENSION

SHAFT HEIGHT

FREE END PLAY

MIN MAX.

4" 1 1/2" 38.1 mm 1.508"

1.498"

38.30

38.05

0.010"

0.25 mm

0.045"

1.14 mm

6" 2 7/8" 73.0 mm 2.875"

2.869"

73.02

72.88

0.030"

0.76 mm

0.050"

1.27 mm

8" TYPE 1 4" 101.6 mm 4.000"

3.990"

101.60

101.35

0.008"

0.20 mm

0.032"

0.81 mm

8" TYPE 2.1 4" 101.6 mm 4.000"

3.990"

101.60

101.35

0.030"

0.76 mm

0.080"

2.03 mm

Maintenance – All Motors

System Troubleshooting

POSSIBLE CAUSE CHECKING PROCEDURES CORRECTIVE ACTION

A. No power or incorrect voltage. Check voltage at line terminals.

The voltage must be ± 10% of rated voltage. Contact power company if voltage is incorrect.

B. Fuses blown or circuit breakers tripped.

Check fuses for recommended size and

check for loose, dirty or corroded

connections in fuse receptacle. Check

for tripped circuit breakers.

Replace with proper fuse or reset

circuit breakers.

C. Defective pressure switch.

Check voltage at contact points. Improper

contact of switch points can cause voltage

less than line voltage.

Replace pressure switch or clean points.

D. Control box malfunction. For detailed procedure, see pages 46-54. Repair or replace.

E. Defective wiring. Check for loose or corroded connections

or defective wiring Correct faulty wiring or connections.

F. Bound pump.

Check for misalignment between pump

and motor or a sand bound pump.

Amp readings will be 3 to 6 times higher

than normal until the overload trips

Pull pump and correct problem. Run new

installation until the water clears

G. Defective cable or motor. For detailed procedure, see pages 44 & 45. Repair or replace.

A. Pressure switch. Check setting on pressure switch and

examine for defects. Reset limit or replace switch.

B. Check valve - stuck open. Damaged or defective check valve will

not hold pressure. Replace if defective.

C. Waterlogged tank. Check air charge Clean or replace.

D. Leak in system. Check system for leaks. Replace damaged pipes or repair leaks.

Motor Does Not Start

Motor Starts Too Often

Maintenance – All Motors

System Troubleshooting

POSSIBLE CAUSE CHECKING PROCEDURES CORRECTIVE ACTION

A. Pressure switch. Check switch for welded contacts.

Check switch adjustments. Clean contacts, replace switch, or adjust setting.

B. Low water level in well.

Pump may exceed well capacity. Shut off

pump, wait for well to recover. Check

static and drawdown level from well head.

Throttle pump output or reset pump to lower level.

Do not lower if sand may clog pump.

C. Leak in system. Check system for leaks. Replace damaged pipes or repair leaks.

D. Worn pump.

Symptoms of worn pump are similar to

those of drop pipe leak or low water level

in well. Reduce pressure switch setting, if

pump shuts off worn parts may be the fault.

Pull pump and replace worn parts.

E. Loose coupling or broken motor shaft. Check for loose coupling or damaged shaft. Replace worn or damaged parts.

F. Pump screen blocked. Check for clogged intake screen. Clean screen and reset pump depth.

G. Check valve stuck closed. Check operation of check valve. Replace if defective.

H. Control box malfunction. See pages 46-54 for single-phase. Repair or replace.

A. Incorrect voltage. Using voltmeter, check the line terminals.

Voltage must be within ± 10% of rated voltage. Contact power company if voltage is incorrect.

B. Overheated protectors.

Direct sunlight or other heat source can raise control

box temperature causing protectors to trip. The box

must not be hot to touch.

Shade box, provide ventilation or move

box away from source.

C. Defective control box. For detailed procedures, see pages 46-54. Repair or replace.

D. Defective motor or cable. For detailed procedures, see pages 44 & 45. Repair or replace.

E. Worn pump or motor. Check running current, see tables 13, 22, 24 & 26. Replace pump and/or motor.

Motor Runs Continuously

Motor Runs But Overload Protector Trips

Maintenance – All Motors

GROUND

{

POWER

SUPPLY BLACK

{

YELLOW

RED

GROUND

POWER MUST

BE SHUT OFF

BLACK

YELLOW

RED

L1 L2 R Y B

PUMP

OHMMETER

SET AT R X 1

GROUND

{

POWER

SUPPLY BLACK

{

YELLOW

RED

GROUND

POWER MUST

BE SHUT OFF

BLACK

YELLOW

RED

L1 L2 R Y B

PUMP

MEGGER

OR OHMMETER

SET AT R X 100K

CONNECT

THIS LEAD

TO GROUND

ATTACH THIS LEAD

TO WELL CASING OR

DISCHARGE PIPE

FIG. 13 FIG. 14

Table 44 Preliminary Tests - All Sizes Single- and Three-Phase

“TEST” PROCEDURE WHAT IT MEANS

Insulation

Resistance

1. Open master breaker and disconnect all leads from control

box or pressure switch (QD type control, remove lid) to

avoid electric shock hazard and damage to the meter.

2. Use a megohmmeter or set the scale lever to R X 100K

on an Ohmmeter. Zero the meter.

3. Connect one meter lead to any one of the motor leads

and the other lead to the metal drop pipe. If the drop pipe is

plastic, connect the meter lead to ground.

1. If the ohms value is normal (table 45), the motor is

not grounded and the cable insulation is not damaged.

2. If the ohms value is below normal, either the windings

are grounded or the cable insulation is damaged.

Check the cable at the well seal as the insulation is

sometimes damaged by being pinched.

Winding

Resistance

1. Open master breaker and disconnect all leads from control

box or pressure switch (QD type control, remove lid) to

avoid electric shock hazard and damage to the meter.

2. Set the scale lever to R X 1 for values under 10 ohms.

For values over 10 ohms, set the scale lever to R X 10.

“Zero” the Ohmmeter.

3. On 3-wire motors measure the resistance of yellow to black

(Main winding) and yellow to red (Start winding).

On 2-wire motors: measure the resistance from line-to-line.

Three-phase motors: measure the resistance line-to-line

for all three combinations.

1. If all ohms values are normal (tables 13, 22, 24 & 26), the

motor windings are neither shorted nor open, and the

cable colors are correct

2. If any one value is less than normal, the motor

is shorted.

3. If any one ohm value is greater than normal, the

winding or the cable is open, or there is a poor cable

joint or connection.

4. If some ohms values are greater than normal and some

less on single-phase motors, the leads are mixed. See

page 46 to verify cable colors.

Maintenance – All Motors

Insulation Resistance Readings

The values below are for copper conductors. If aluminum

conductor drop cable is used, the resistance will be

higher. To determine the actual resistance of the

aluminum drop cable, divide the ohm readings from this

chart by 0.61. This chart shows total resistance of cable

from control to motor and back.

Winding Resistance Measuring

The winding resistance measured at the motor should

fall within the values in tables 13, 22, 24 & 26. When

measured through the drop cable, the resistance of

the drop cable must be subtracted from the Ohmmeter

readings to get the winding resistance of the motor. See

table below.

Insulation resistance varies very little with rating. Motors of all hp, voltage, and phase rating have similar values of

insulation resistance.

The table above is based on readings taken with a megohm meter with a 500 VDC output. Readings may vary using a lower

voltage Ohmmeter, consult Franklin Electric if readings are in question.

Table 45 Normal ohm and Megohm Values Between All Leads and Ground

Table 45A DC Resistance in ohms per 100 ft of Wire (Two conductors) @ 50 °F

CONDITION OF MOTOR AND LEADS OHMS VALUE MEGOHM VALUE

A new motor (without drop cable).

A used motor which can be reinstalled in well.

200,000,000 (or more)

10,000,000 (or more)

200.0 (or more)

10.0 (or more)

MOTOR IN WELL. READINGS ARE FOR DROP CABLE PLUS MOTOR.

2,000,000 (or more)

500,000 - 2,000,000

Less than 500,000

2.0 (or more)

0.50 - 2.0

Less than .50

New motor.

Motor in good condition.

Insulation damage, locate and repair.

AWG OR MCM WIRE SIZE (COPPER) 14 12 10 86432

OHMS 0.544 0.338 0.214 0.135 0.082 0.052 0.041 0.032

1 1/0 2/0 3/0 4/0 250 300 350 400 500 600 700

0.026 0.021 0.017 0.013 0.010 0.0088 0.0073 0.0063 0.0056 0.0044 0.0037 0.0032

Resistance of Drop Cable (ohms)

Maintenance – Single-Phase Motors & Controls

WARNING: Power must be on for these tests. Do not

touch any live parts.

A. VOLTAGE MEASUREMENTS

Step 1. Motor Off

1. Measure voltage at L1 and L2 of pressure switch

or line contactor.

2. Voltage Reading: Should be ± 10% of

motor rating.

Step 2. Motor Running

1. Measure voltage at load side of pressure switch

or line contactor with pump running.

2. Voltage Reading: Should remain the same except

for slight dip on starting. Excessive voltage

drop can be caused by loose connections, bad

contacts, ground faults, or inadequate

power supply.

3. Relay chatter is caused by low voltage or

ground faults.

If the colors on the individual drop cables cannot be

found with an Ohmmeter, measure:

Cable 1 to Cable 2

Cable 2 to Cable 3

Cable 3 to Cable 1

Find the highest resistance reading.

The lead not used in the highest reading is the

yellow lead.

Use the yellow lead and each of the other two leads to

get two readings:

Highest is the red lead.

Lowest is the black lead.

Identiﬁ cation Of Cables When Color Code Is Unknown (Single-Phase 3-Wire Units)

EXAMPLE:

The Ohmmeter readings were:

Cable 1 to Cable 2—6 ohms

Cable 2 to Cable 3—2 ohms

Cable 3 to Cable 1— 4 ohms

The lead not used in the highest reading (6 ohms) was

Cable 3—Yellow

From the yellow lead, the highest reading (4 ohms) was

To Cable 1—Red

From the yellow lead, the lowest reading (2 ohms) was

To Cable 2—Black

Single-Phase Control Boxes

B. CURRENT (AMP) MEASUREMENTS

1. Measure current on all motor leads.

2. Amp Reading: Current in red lead should

momentarily be high, then drop within one second

to values in table 13. This veriﬁ es relay or solid

state relay operation. Current in black and yellow

leads should not exceed values in table 13.

3. Relay or switch failures will cause red lead

current to remain high and overload tripping.

4. Open run capacitor(s) will cause amps to be

higher than normal in the black and yellow motor

leads and lower than normal in the red

motor lead.

5. A bound pump will cause locked rotor amps and

overloading tripping.

6. Low amps may be caused by pump running at

shutoff, worn pump, or stripped splines.

7. Failed start capacitor or open switch/relay are

indicated if the red lead current is not

momentarily high at starting.

CAUTION: The tests in this manual for components such as capacitors, relays, and QD switches should be

regarded as indicative and not as conclusive. For example, a capacitor may test good (not open, not shorted) but

may have lost some of its capacitance and may no longer be able to perform its function.

To verify proper operation of QD switches or relays, refer to operational test procedure described above

in Section B-2.

Checking and Repairing Procedures (Power On)

Maintenance – Single-Phase Motors & Controls

Integral Horsepower Control Box (Power Off)

A. OVERLOADS (Push Reset Buttons to make sure

contacts are closed.)

1. Meter Setting: R x 1.

2. Connections: Overload terminals.

3. Correct meter reading: Less than 0.5 ohms.

B. CAPACITOR (Disconnect leads from one side of

each capacitor before checking.)

1. Meter Setting: R x 1,000.

2. Connections: Capacitor terminals.

3. Correct meter reading: Pointer should swing toward

zero, then drift back to inﬁ nity, except for capacitors

with resistors which will drift back to 15,000 ohms.

C. POTENTIAL (VOLTAGE) RELAY

Step 1. Coil Test

1. Meter setting: R x 1,000.

2. Connections: #2 & #5.

3. Correct meter readings: 4.5-7.0 (4,500 to 7,000

ohms) for all models.

QD, Solid State Control Box (Power Off)

A. START CAPACITOR AND RUN CAPACITOR IF

APPLICABLE (CRC)

1. Meter Setting: R x 1,000.

2. Connections: Capacitor terminals.

3. Correct meter reading: Pointer should swing

toward zero, then back to inﬁ nity.

B. Q.D. (BLUE) RELAY

Step 1. Triac Test

1. Meter setting: R x 1,000.

2. Connections: Cap and B terminal.

3. Correct meter reading: Inﬁ nity for all models.

Step 2. Coil Test

1. Meter Setting: R x 1.

2. Connections: L1 and B.

3. Correct meter reading: Zero ohms for all models.

CAUTION: The tests in this manual for components such as capacitors, relays, and QD switches should be regarded as

indicative and not as conclusive. For example, a capacitor may test good (not open, not shorted) but may have lost some

of its capacitance and may no longer be able to perform its function.

To verify proper operation of QD switches or relays, refer to operational test procedure described on page 46, Section B-2.

C. POTENTIAL (VOLTAGE) RELAY

Step 1. Coil Test

1. Meter setting: R x 1,000.

2. Connections: #2 & #5.

3. Correct meter readings:

For 115 Volt Boxes:

0.7-1.8 (700 to 1,800 ohms).

For 230 Volt Boxes:

4.5-7.0 (4,500 to 7,000 ohms).

Step 2. Contact Test

1. Meter setting: R x 1.

2. Connections: #1 & #2.

3. Correct meter reading: Zero for all models.

Step 2. Contact Test

1. Meter Setting: R x 1.

2. Connections: #1 & #2.

3. Correct meter reading: Zero ohms for all models.

D. CONTACTOR

Step 1. Coil

1. Meter setting: R x 100

2. Connections: Coil terminals

3. Correct meter reading:

1.8-14.0 (180 to 1,400 ohms)

Step 2. Contacts

1. Meter Setting: R X 1

2. Connections: L1 & T1 or L2 & T2

3. Manually close contacts

4. Correct meter reading: Zero ohms

Ohmmeter Tests

Maintenance – Single-Phase Motors & Controls

NOTE 1: Control boxes supplied with QD Relays are

designed to operate on 230 volt systems. For 208 volt

systems or where line voltage is between 200 volts and

210 volts use the next larger cable size, or use a boost

transformer to raise the voltage.

NOTE 2: Voltage relays kits for 115 volts (305102901)

and 230 volts (305102902) will replace current, voltage

or QD Relays, and solid state switches.

(1) For Control Boxes with model numbers that end with 4915.

Table 48 QD Control Box Parts 60 Hz

Table 48A QD Capacitor Replacement Kits

Table 48C QD Relay Replacement Kits

Table 48B Overload Kits 60 Hz

HP VOLTS CONTROL BOX

MODEL NUMBER QD (BLUE) RELAY START

CAPACITOR MFD VOLTS RUN

CAPACITOR MFD VOLTS

1/3

115 280 102 4915 223 415 905 275 464 125 159-191 110

230 280 103 4915 223 415 901 275 464 126 43-53 220

1/2

115 280 104 4915 223 415 906 275 464 201 250-300 125

230 280 105 4915 223 415 902 275 464 105 59-71 220

230 282 405 5015 (CRC) 223 415 912 275 464 126 43-53 220 156 362 101 15 370

3/4

230 280 107 4915 223 415 903 275 464 118 86-103 220

230 282 407 5015 (CRC) 223 415 913 275 464 105 59-71 220 156 362 102 23 370

230 280 108 4915 223 415 904 275 464 113 105-126 220

230 282 408 5015 (CRC) 223 415 914 275 464 118 86-103 220 156 362 102 23 370

CAPACITOR NUMBER KIT

275 464 105 305 207 905

275 464 113 305 207 913

275 464 118 305 207 918

275 464 125 305 207 925

275 464 126 305 207 926

275 464 201 305 207 951

156 362 101 305 203 907

156 362 102 305 203 908

QD RELAY NUMBER KIT

223 415 901 305 101 901

223 415 902 305 101 902

223 415 903 305 101 903

223 415 904 305 101 904

223 415 905 305 101 905

223 415 906 305 101 906

223 415 912 (CRC) 305 105 901

223 415 913 (CRC) 305 105 902

223 415 914 (CRC) 305 105 903

HP VOLTS KIT (1)

1/3 115 305 100 901

1/3 230 305 100 902

1/2 115 305 100 903

1/2 230 305 100 904

3/4 230 305 100 905

1 230 305 100 906

Maintenance – Single-Phase Motors & Controls

FOOTNOTES:

(1) Lightning arrestors 150 814 902 are suitable for all control boxes.

(2) S = Start, M = Main, L = Line, R = Run

Deluxe = Control box with line contactor.

(3) For 208-volt systems or where line voltage is between 200 V and 210 V, a low voltage relay is required. On 3 hp

and smaller control boxes use relay part 155 031 103 in place of 155 031 102 and use the next larger cable size

than speciﬁ ed in the 230 V table. On 5 hp and larger use relay 155 031 602 in place of 155 031 601 and next

larger wire. Boost transformers per page 15 are an alternative to special relays and cable.

(4) Control box model 282 300 8610 is designed for use with motors having internal overload protectors. If used with a

1.5 hp motor manufactured prior to date code 06H18, Overload/Capacitor Kit 305 388 901 is required.

Table 49 Integral Horsepower Control Box Parts 60 Hz

MOTOR

SIZE

MOTOR

RATING HP

CONTROL BOX (1)

MODEL NO.

CAPACITORS OVERLOAD (2)

PART NO.

RELAY (3)

PART NO.

CONTACTOR (2)

PART NO.

PART NO. (2) MFD. VOLTS QTY.

4" 1 - 1.5

STANDARD

282 300 8110 275 464 113 S

155 328 102 R

105-126

220

370

1275 411 107 155 031 102

282 300 8610 275 464 113 S

155 328 101 R

105-126

220

370

None

(See Note 4) 155 031 102

4" 2

STANDARD 282 301 8110 275 464 113 S

155 328 103 R

105-126

220

370

275 411 117 S

275 411 113 M 155 031 102

4" 2

DELUXE 282 301 8310 275 464 113 S

155 328 103 R

105-126

220

370

275 411 117 S

275 411 113 M 155 031 102 155 325 102 L

4" 3

STANDARD 282 302 8110 275 463 111 S

155 327 109 R

208-250

220

370

275 411 118 S

275 411 115 M 155 031 102

4" 3

DELUXE 282 302 8310 275 463 111 S

155 327 109 R

208-250

220

370

275 411 118 S

275 411 115 M 155 031 102 155 325 102 L

4" & 6" 5

STANDARD 282 113 8110 275 468 119 S

155 327 114 R

270-324

330

370

275 411 119 S

275 406 102 M 155 031 601

4" & 6" 5

DELUXE 282 113 9310 275 468 119 S

155 327 114 R

270-324

330

370

275 411 119 S

275 406 102 M 155 031 601 155 326 101 L

6" 7.5

STANDARD 282 201 9210

275 468 119 S

275 468 118 S

155 327 109 R

270-324

216-259

330

370

275 411 102 S

275 406 122 M 155 031 601

6" 7.5

DELUXE 282 201 9310

275 468 119 S

275 468 118 S

155 327 109 R

270-324

216-259

330

370

275 411 102 S

275 406 121 M 155 031 601 155 326 102 L

6" 10

STANDARD 282 202 9210

275 468 119 S

275468 120 S

155 327 102 R

270-324

350-420

330

370

275 406 103 S

155 409 101 M 155 031 601

6" 10

STANDARD 282 202 9230

275 463 120 S

275 468 118 S

275 468 119 S

155 327 102 R

130-154

216-259

270-324

330

370

275 406 103 S

155 409 101 M

155 031 601

6" 10

DELUXE 282 202 9310

275 468 119 S

275468 120 S

155 327 102 R

270-324

350-420

330

370

275 406 103 S

155 409 101 M 155 031 601 155 326 102 L

6" 10

DELUXE 282 202 9330

275 463 120 S

275 468 118 S

275 468 119 S

155 327 102 R

130-154

216-259

270-324

330

370

275 406 103 S

155 409 101 M

155 031 601 155 326 102 L

6" 15

DELUXE 282 203 9310 275 468 120 S

155 327 109 R

350-420

330

370

275 406 103 S

155 409 102 M 155 031 601 155 429 101 L

6" 15

DELUXE 282 203 9330

275 463 122 S

275 468 119 S

155 327 109 R

161-193

270-324

330

370

275 406 103 S

155 409 102 M

155 031 601 155 429 101 L

6" 15

X-LARGE 282 203 9621 275 468 120 S

155 327 109 R

350-420

330

370

275 406 103 S

155 409 102 M

155 031 601

2 required 155 429 101 L

Maintenance – Single-Phase Motors & Controls

CAPACITOR NUMBER KIT

275 463 122 305 206 912

275 463 111 305 206 911

275 463 120 305 206 920

275 464 113 305 207 913

275 468 117 305 208 917

275 468 118 305 208 918

275 468 119 305 208 919

275 468 120 305 208 920

155 327 101 305 203 901

155 327 102 305 203 902

155 327 109 305 203 909

155 327 114 305 203 914

155 328 101 305 204 901

155 328 102 305 204 902

155 328 103 305 204 903

OVERLOAD NUMBER KIT

275 406 102 305 214 902

275 406 103 305 214 903

275 406 121 305 214 921

275 406 122 305 214 922

275 411 102 305 215 902

275 411 107 305 215 907

275 411 108 305 215 908

275 411 113 305 215 913

275 411 115 305 215 915

275 411 117 305 215 917

275 411 118 305 215 918

275 411 119 305 215 919

RELAY NUMBER KIT

155 031 102 305 213 902

155 031 103 305 213 903

155 031 601 305 213 961

155 031 602 305 213 904

CONTACTOR KIT

155 325 102 305 226 901

155 326 101 305 347 903

155 326 102 305 347 902

155 429 101 305 347 901

Table 50 Integral hp Capacitor Replacement Kits

Table 50A Integral hp Overload Replacement Kits

Table 50B Integral hp Voltage Relay Replacement Kits

Table 50C Integral hp Contactor Replacement Kits

Maintenance – Single-Phase Motors & Controls

1/2 - 1 hp CRC QD RELAY

282 40_ 5015

Sixth digit depends on hp

Control Box Wiring Diagrams

LINE POWER

FROM TWO POLE

FUSED SWITCH OR

CIRCUIT BREAKER,

AND OTHER CONTROL

IF USED.

OVERLOAD TO

MOTOR

RED

BLK

YEL

BLU

BLK

YEL

RED

YEL

START CAPACITOR

RUN CAPACITOR

BLK

ORG

BLK

RED

GROUND

LEAD

GROUND

LEAD

RELAY

L1 L2 YEL BLK RED

GND

GREEN

CAPACITOR

CAP

BL1

B (MAIN) Y R (START) L2 L1

(MOTOR LEADS) (LINE LEADS)

ORANGE

QD RELAY

BLACK

YELLOW

RED

BLUE

GND

GREEN

GND

GREEN

GND

GREEN

START

CAPACITOR

RUN

CAPACITOR

CAP

BL1

QD RELAY

B (MAIN) Y R (START) L2 L1

(MOTOR LEADS) (LINE LEADS)

RED

YELLOW

BLUE

BLACK

RED

ORANGE

1/3 - 1 hp QD RELAY

280 10_ 4915

Sixth digit depends on hp

1 - 1.5 hp

282 300 8110

1 - 1.5 hp

282 300 8610

RELAY

L1 L2 YEL BLK RED

LINE POWER

FROM TWO POLE

FUSED SWITCH OR

CIRCUIT BREAKER,

AND OTHER CONTROL

IF USED.

MOTOR

RED

BLK

YEL

BLK

YEL

RED

YEL

RUN CAPACITOR START CAPACITOR

BLK

ORG

BLK

RED

GROUND

LEAD

GROUND

LEAD

Maintenance – Single-Phase Motors & Controls

START

OVERLOAD

LINE POWER

FROM TWO POLE

FUSED SWITCH OR

CIRCUIT BREAKER,

AND OTHER CONTROL

IF USED.

RELAY

MOTOR

BLK

RED

YEL

MAIN

OVERLOAD

RED

BLK

YEL

BLU

BLK

YEL

START CAPACITOR

RUN CAPACITOR

BLK

ORG

GROUND

LEAD

GROUND

LEAD

L1 L2 YEL BLK RED

START

OVERLOAD

LINE

POWER

FROM

TWO POLE

FUSED

SWITCH

CIRCUIT

BREAKER

PRESSURE

OR OTHER

CONTROL

SWITCH

RELAY

START CAPACITOR

RUN CAPACITOR

LINE

CONTACTOR

L1 L2

COIL

MOTOR

RED

BLK

YEL

ORG

MAIN OVERLOAD

RED

BLK

YEL

BLU

RED

YEL

BLK

YEL

GROUND

LEAD

GROUND

LEAD

L1 L2 YEL BLK RED

START

OVERLOAD

LINE POWER

FROM TWO POLE

FUSED SWITCH OR

CIRCUIT BREAKER,

AND OTHER CONTROL

IF USED.

RELAY

MOTOR

BLK

RED

YEL

MAIN

OVERLOAD

RED

BLK

YEL

BLU

BLK

YEL

START CAPACITOR

RUN CAPACITOR

BLK

ORG

GROUND

LEAD

GROUND

LEAD

L1 L2 YEL BLK RED

START

OVERLOAD

LINE

POWER

FROM

TWO POLE

FUSED

SWITCH

CIRCUIT

BREAKER

PRESSURE

OR OTHER

CONTROL

SWITCH

RELAY

START CAPACITOR

RUN CAPACITOR

LINE

CONTACTOR

L1 L2

COIL

MOTOR

RED

BLK

YEL

ORG

MAIN OVERLOAD

RED

BLK

YEL

BLU

RED

YEL

BLK

YEL

GROUND

LEAD

GROUND

LEAD

L1 L2 YEL BLK RED

2 hp STANDARD

282 301 8110

3 hp STANDARD

282 302 8110

3 hp DELUXE

282 302 8310

2 hp DELUXE

282 301 8310

Maintenance – Single-Phase Motors & Controls

START

OVERLOAD

LINE POWER

FROM TWO POLE

FUSED SWITCH OR

CIRCUIT BREAKER,

AND OTHER CONTROL

IF USED.

RELAY

START CAPACITOR

MOTOR

BLK

RED

ORG

YEL

SURGE

ARRESTOR

MAIN OVERLOAD

BLK

RED

BLK

YEL

BLU

BLK

YEL

BLK

ORG

BLK

RUN CAPACITOR

START CAPACITOR

GROUND

LEAD

GROUND

LEAD

L1 L2 YEL BLK RED

START

OVERLOAD

LINE

POWER

FROM

TWO POLE

FUSED

SWITCH

CIRCUIT

BREAKER

PRESSURE

OR OTHER

CONTROL

SWITCH MAIN

OVERLOAD

RELAY

START CAPACITOR

RUN CAPACITOR

MOTOR

BLK

BLU

YEL

RED

ORG

YEL

RED

BLK

YEL

START CAPACITOR

BLK

ORG

BLK

YEL

SURGE

ARRESTOR

BLK

GROUND

LEAD

GROUND

LEAD

SW L1 L2 YEL BLK RED

CONTACTOR

COIL

LINE

YEL

5 hp STANDARD

282 113 8110

5 hp DELUXE

282 113 8310 or 282 113 9310

7.5 hp STANDARD

282 201 9210

7.5 hp DELUXE

282 201 9310

START

OVERLOAD

LINE

POWER

FROM

TWO POLE

FUSED

SWITCH

CIRCUIT

BREAKER

PRESSURE

OR OTHER

CONTROL

SWITCH

RELAY

START CAPACITOR

RUN CAPACITOR

MOTOR

BLK

RED

BLK

YEL

RED

ORG

YEL

BLK

YEL

BLK

MAIN OVERLOAD

BLK

RED

BLK

YEL

BLU

BLK

GROUND

LEAD

GROUND

LEAD

L1 L2 YEL BLK RED

COIL

BLK

LINE

CONTACTOR

START

OVERLOAD

LINE POWER

FROM TWO POLE

FUSED SWITCH OR

CIRCUIT BREAKER,

AND OTHER CONTROL

IF USED.

RELAY

START CAPACITOR

RUN CAPACITOR

MOTOR

BLK

RED

BLK

RED

ORG

YEL

BLK

MAIN OVERLOAD

BLK

RED

BLK

YEL

BLU

BLK

YEL

GROUND

LEAD

GROUND

LEAD

L1 L2 YEL BLK RED

Maintenance – Single-Phase Motors & Controls

BREAKER

CIRCUIT

SWITCH

FUSED

TWO POLE

FROM

POWER

LINE

OR CONTROL

SWITCH

OR OTHER

PRESSURE

LEAD

GROUND

ORG

BLK

START CAPACITOR

MOTOR

YEL

OVERLOAD

MAIN

BLK

OVERLOAD

START

LEAD

GROUND

BLK

RED

RELAY

YEL

BLK

YEL

ARRESTOR

SURGE

YEL

RED

BLK

YEL

ORG

RED

RUN CAPACITOR

BLK

START CAPACITOR

SW SW L1 L2 RED

CONTACTOR

COIL

LINE

BLK

RED

ORG

BLK

10 hp STANDARD

282 202 9210 or 282 202 9230

10 hp DELUXE

282 202 9230 or 282 202 9330

15 hp DELUXE

282 203 9330 or 282 203 9330

LINE POWER

FROM TWO POLE

FUSED SWITCH OR

CIRCUIT BREAKER,

AND OTHER CONTROL

IF USED.

GROUND

LEAD

START CAPACITOR

MOTOR

MAIN

OVERLOAD

L1 L2

OVERLOAD

START

LEAD

GROUND

RED

YEL

YEL BLK

ORG 12

RELAY

RED

ARRESTOR

SURGE

YEL

RUN CAPACITOR

BLK

RED

BLK

START CAPACITOR

ORG

BLK

YEL

BLK

RED

BLK

RED

BLK ORG

BLK

START

OVERLOAD

LINE

POWER

FROM

TWO POLE

FUSED

SWITCH

CIRCUIT

BREAKER

PRESSURE

OR OTHER

CONTROL

SWITCH

MAIN

OVERLOAD

RELAY

START CAPACITOR

MOTOR

BLK

YEL

RED

ORG

YEL

BLK

ORG

BLK

YEL

SURGE

ARRESTOR

BLK

RED

BLK

YEL

BLK

GROUND

LEAD

GROUND

LEAD

RUN CAPACITOR

SW SW L1 L2 RED

BLK

RED

L1 L2

BLK

COIL

YEL

BLK

15 hp X-LARGE

282 203 9621

START

OVERLOAD

LINE

POWER

FROM

TWO POLE

FUSED

SWITCH

CIRCUIT

BREAKER

PRESSURE

OR OTHER

CONTROL

SWITCH

MAIN

OVERLOAD

RELAY

START CAPACITOR

RUN CAPACITOR

LINE CONTACTOR

L2 COIL

MOTOR

COIL

SURGE

ARRESTOR

GROUND

LEAD

RELAY

L2 L1

GROUND

LEAD

SW SW BYR

Maintenance – Electronic Products

Pumptec-Plus

Pumptec-Plus is a pump/motor protection device designed to work on any 230 V single-phase induction motor (PSC,

CSCR, CSIR, and split phase) ranging in size from 1/2 to 5 horsepower. Pumptec-Plus uses a micro-computer to

continuously monitor motor power and line voltage to provide protection against dry well, water logged tank, high and

low voltage and mud or sand clogging.

Pumptec-Plus – Troubleshooting During Installation

SYMPTOM POSSIBLE CAUSE SOLUTION

Unit Appears Dead

(No Lights) No Power to Unit

Check wiring. Power supply voltage should be applied to L1 and L2 terminals of the

Pumptec-Plus. In some installations the pressure switch or other control devices is wired

to the input of the Pumptec-Plus. Make sure this switch is closed.

Flashing Yellow Light

Unit Needs to Be Calibrated

Pumptec-Plus is calibrated at the factory so that it will overload on most pump systems

when the unit is ﬁ rst installed. This overload condition is a reminder that the Pumptec-

Plus unit requires calibration before use. See step 7 of the installation instructions.

Miscalibrated Pumptec-Plus should be calibrated on a full recovery well with the maximum water ﬂ ow.

Flow restrictors are not recommended.

Flashing Yellow Light

During Calibration 2-Wire Motor

Step C of the calibration instructions indicate that a ﬂ ashing green light condition will

occur 2 to 3 seconds after taking the SNAPSHOT of the motor load. On some two wire

motors the yellow light will ﬂ ash instead of the green light. Press and release the reset

button. The green should start ﬂ ashing.

Flashing Red and

Yellow Lights

Power Interruption

During the installation of Pumptec-Plus power may be switched on and off several times.

If power is cycled more than four times within a minute Pumptec-Plus will trip on rapid

cycle. Press and release the reset button to restart the unit.

Float Switch

A bobbing ﬂ oat switch may cause the unit to detect a rapid cycle condition on any motor

or an overload condition on two wire motors. Try to reduce water splashing or use a

different switch.

Flashing Red Light

High Line Voltage The line voltage is over 253 volts. Check line voltage. Report high line voltage to the

power company.

Unloaded Generator

If you are using a generator the line voltage may become too high when the generator

unloads. Pumptec-Plus will not allow the motor to turn on again until the line voltage

returns to normal. Over voltage trips will also occur if line frequency drops too far

below 60 Hz.

Solid Red Light

Low Line Voltage The line voltage is below 207 volts. Check line voltage.

Loose Connections Check for loose connections which may cause voltage drops.

Loaded Generator

If you are using a generator the line voltage may become too low when the generator

loads. Pumptec-Plus will trip on undervoltage if the generator voltage drops below 207

volts for more than 2.5 seconds. Undervoltage trips will also occur if the line frequency

rises too far above 60 Hz.

Maintenance – Electronic Products

Pumptec-Plus

Pumptec-Plus - Troubleshooting After Installation

SYMPTOM POSSIBLE CAUSE SOLUTION

Solid Yellow Light

Dry Well

Wait for the automatic restart timer to time out. During the time out period the well should

recover and ﬁ ll with water. If the automatic reset timer is set to the manual position, then the

reset button must be pressed to reactivate the unit.

Blocked Intake Clear or replace pump intake screen.

Blocked Discharge Remove blockage in plumbing.

Check Valve Stuck Replace check valve.

Broken Shaft Replace broken parts.

Severe Rapid Cycling Machine gun rapid cycling can cause an underload condition. See ﬂ ashing red and yellow

lights section below.

Worn Pump Replace worn pump parts and recalibrate.

Yellow Flashing Light

Stalled Motor Repair or replace motor. Pump may be sand or mud locked.

Float Switch A bobbing ﬂ oat switch can cause two-wire motors to stall. Arrange plumbing to avoid

splashing water. Replace ﬂ oat switch.

Ground Fault Check insulation resistance on motor and control box cable.

Solid Red Light

Low Line Voltage The line voltage is below 207 volts. Pumptec-Plus will try to restart the motor every two

minutes until line voltage is normal.

Loose Connections

Check for excessive voltage drops in the system electrical connections (i.e. circuit breakers,

fuse clips, pressure switch, and Pumptec-Plus L1 and L2 terminals).

Repair connections.

Flashing Red Light High Line Voltage The line voltage is over 253 volts. Check line voltage. Report high line voltage to the

power company.

Flashing Red and

Yellow Lights

Rapid Cycle

The most common cause for the rapid cycle condition is a waterlogged tank. Check for a

ruptured bladder in the water tank. Check the air volume control or snifter valve for proper

operation. Check setting on the pressure switch and examine for defects.

Leaky Well System Replace damaged pipes or repair leaks.

Stuck Check Valve Failed valve will not hold pressure. Replace valve.

Float Switch

Press and release the reset button to restart the unit. A bobbing ﬂ oat switch may cause the

unit to detect a rapid cycle condition on any motor or an overload condition on 2-wire

motors. Try to reduce water splashing or use a different switch.

Maintenance – Electronic Products

QD Pumptec and Pumptec

QD Pumptec & Pumptec – Troubleshooting

SYMPTOM CHECKS OR SOLUTION

If the QD Pumptec or Pumptec trips in about

4 seconds with some water delivery.

A. Is the voltage less than 90% of nameplate rating?

B. Are the pump and motor correctly matched?

C. Is the QD Pumptec or Pumptec wired correctly? For the Pumptec check the wiring

diagram and pay special attention to the positioning of the power lead

(230 V or 115 V).

D. For QD Pumptec is your system 230 V 60 Hz or 220 V 50 Hz?

If the QD Pumptec or Pumptec trips in about

4 seconds with no water delivery.

A. The pump may be airlocked. If there ia a check valve on top of the pump, put another

section of pipe between the pump and the check valve.

B. The pump may be out of water.

C. Check the valve settings. The pump may be dead-heading.

D. Pump or motor shaft may be broken.

E. Motor overload may be tripped. Check the motor current (amperage).

If the QD Pumptec or Pumptec will not timeout

and reset.

A. Check switch position on side of circuit board on Pumptec. QD Pumptec check timer

position on top/front of unit. Make sure the switch is not between settings.

B. If the reset time switch is set to manual reset (position 0), QD Pumptec and Pumptec

will not reset (turn power off for 5 sec then back on to reset).

If your pump/motor will not run at all.

A. Check voltage.

B. Check wiring.

C. Remove the QD Pumptec from the control box. Reconnect wires in box to original

state. If motor does not run the problem is not QD Pumptec. Bypass Pumptec by

connecting L2 and motor lead with jumper. Motor should run. If not, the problem is

not Pumptec.

D. On Pumptec only check that Pumptec is installed between the control switch and

the motor.

If your QD Pumptec or Pumptec will not trip

when the pump breaks suction.

A. Be sure you have a Franklin motor.

B. Check wiring connections. On Pumptec is lead power (230 V or 115 V) connected to

correct terminal? Is motor lead connected to correct terminal?

C. Check for ground fault in the motor and excessive friction in the pump.

D. The well may be “gulping” enough water to keep QD Pumptec or Pumptec from

tripping. It may be necessary to adjust the QD Pumptec or the Pumptec for these

extreme applications. Call the Franklin Electric Service Hotline at 800-348-2420

for information.

E. On Pumptec applications does the control box have a run capacitor? If so, Pumptec

will not trip. (Except for Franklin 1.5 hp motors).

If your QD Pumptec or Pumptec chatters

when running.

A. Check for low voltage.

B. Check for waterlogged tank. Rapid cycling for any reason can cause the QD Pumptec

or the Pumptec relay to chatter.

C. On Pumptec make sure the L2 and motor wires are installed correctly. If they are

reversed, the unit can chatter.

QD Pumptec and Pumptec are load sensing devices that monitor the load on submersible pumps/motors. If the load

drops below a preset level for a minimum of 4 seconds the QD Pumptec or the Pumptec will shut off the motor.

The QD Pumptec is designed and calibrated expressly for use on Franklin Electric 230 V 3-wire motors (1/3 to 1 hp.)

The QD Pumptec must be installed in QD relay boxes.

The Pumptec is designed for use on Franklin Electric 2- and 3-wire motors (1/3 to 1.5 hp) 115 and 230 V. The Pumptec

is not designed for jet pumps.

Maintenance – Electronic Products

The Franklin Electric SubDrive/MonoDrive Constant Pressure controller is a variable-speed drive that delivers water

at a constant pressure.

WARNING: Serious or fatal electrical shock may result from failure to connect the motor, SubDrive/MonoDrive

Controller, metal plumbing and all other metal near the motor or cable to the power supply ground terminal using

wire no smaller than motor cable wires. To reduce the risk of electrical shock, disconnect power before working on

or around the water system. Capacitors inside the SubDrive/MonoDrive Controller can still hold a lethal voltage even

after power has been removed. Allow 10 minutes for dangerous internal voltage to discharge. Do not use motor in

swimming areas.

SubDrive/MonoDrive Troubleshooting

Should an application or system problem occur, a built-in diagnostics will protect the system. The “FAULT” light on the

front of the SubDrive/MonoDrive Controller will ﬂ ash a given number of times indicating the nature of the fault. In some

cases, the system will shut itself off until corrective action is taken. Fault codes and their corrective actions are listed

below. See SubDrive Installation Manual for installation data.

SubDrive75, 150, 300, MonoDrive, & MonoDrive XT

* “Cycle input power” means turn the power off until both lights fade off and apply power again

# OF

FLASHES FAULT POSSIBLE

CAUSE CORRECTIVE ACTION

1Motor Underload

Air-locked pump.

Overpumped or dry well.

Worn pump.

Damaged shaft or coupling.

Blocked pump or screen.

Wait for well to recover and automatic restart timer to time

out. If the problem does not correct, check motor and pump.

See description on “smart reset” at the end of the

installation manual.

2Undervoltage Low line voltage.

Misconnected input leads.

Check for loose connections. Check line voltage. Report low

voltage to the power company. Unit will start automatically

when proper power is supplied.

3Locked Pump

Motor/pump misaligned.

Abrasive/sand bound pump.

Dragging pump or motor.

Unit will attempt to free a locked pump. If unsuccessful, check

the motor and pump.

(MonoDrive Only) Incorrectly Wired Start winding resistance too low. Check if main and start wires are swapped. Make certain

proper motor is installed.

5Open Circuit Loose connections.

Defective motor or cable.

Check motor wiring. Make certain all connections are tight.

Make certain proper motor is installed.

*Cycle input power to reset.

Short Circuit

When fault is indicated immediately

after power-up, short circuit due to loose

connection, defective cable, splice or motor.

Check motor wiring. *Cycle input power to reset.

Over Current

When fault is indicated while motor is

running, over current due to loose debris

trapped in pump.

Check pump.

7Overheated

Controller

High ambient temperature.

Direct sunlight.

Obstruction of air ﬂ ow.

This fault automatically resets when temperature returns to

a safe level.

Maintenance – Electronic Products

SubMonitor

SubMonitor Troubleshooting

FAULT MESSAGE PROBLEM/CONDITION POSSIBLE CAUSE

SF Amps Set Too High SF Amps setting above 359 Amps. Motor SF Amps not entered.

Phase Reversal Reversed incoming voltage phase sequence. Incoming power problem.

Underload

Normal line current. Wrong SF Max Amps setting.

Low line current.

Over pumping well.

Clogged pump intake.

Closed valve.

Loose pump impeller.

Broken shaft or coupling.

Phase loss.

Overload

Normal line current. Wrong SF Max Amps setting.

High line current.

High or low line voltage.

Ground fault.

Pump or motor dragging.

Motor stalled or bound pump.

Overheat Motor temperature sensor has detected excess

motor temperature.

High or low line voltage.

Motor is overloaded.

Excessive current unbalance.

Poor motor cooling.

High water temperature.

Excessive electrical noise

(VFD in close proximity).

Unbalance Current difference between any two legs

exceeds programmed setting.

Phase loss.

Unbalanced power supply.

Open delta transformer.

Overvoltage Line voltage exceeds programmed setting. Unstable power supply.

Undervoltage Line voltage below programmed setting. Poor connection in motor power circuit.

Unstable or weak power supply.

False Starts Power has been interrupted too many times in a

10 second period.

Chattering contacts.

Loose connections in motor power circuit.

Arcing contacts.

Maintenance – Electronic Products

Subtrol-Plus (Obsolete - See SubMonitor)

Subtrol-Plus - Troubleshooting After Installation

SYMPTOM POSSIBLE CAUSE OR SOLUTION

Subtrol-Plus Dead

When the Subtrol-Plus reset button is depressed and released, all indicator lights should ﬂ ash. If line voltage is

correct at the Subtrol-Plus L1, L2, L3 terminals and the reset button does not cause lights to ﬂ ash, Subtrol-Plus

receiver is malfunctioning.

Green Off Time

Light Flashes

The green light will ﬂ ash and not allow operation unless both sensor coils are plugged into the receiver. If both are

properly connected and it still ﬂ ashes, the sensor coil or the receiver is faulty. An Ohmmeter check between the two

center terminals of each sensor coil connected should read less than 1 ohm, or coil is faulty. If both coils check good,

receiver is faulty.

Green Off Time

Light On

The green light is on and the Subtrol-Plus requires the speciﬁ ed off time before the pump can be restarted after

having been turned off. If the green light is on except as described, the receiver is faulty. Note that a power

interruption when the motor is running will initiate the delay function.

Overheat Light On

This is a normal protective function which turns off the pump when the motor reaches maximum safe temperatures.

Check that amps are within the nameplate maximum on all three lines, and that the motor has proper water ﬂ ow past

it. If overheat trip occurs without apparent motor overheating, it may be the result of an arcing connection somewhere

in the circuit or extreme noise interference on the power lines. Check with the power company or Franklin Electric.

A true motor overheat trip will require at least ﬁ ve minutes for a motor started cold. If trips do not conform to this

characteristic, suspect arcing connections, power line noise, ground fault, or SCR variable speed control equipment.

Overload Light On

This is a normal protective function, protecting against an overload or locked pump. Check the amps in all lines

through a complete pumping cycle, and monitor whether low or unbalanced voltage may be causing high amps at

particular times. If overload trip occurs without high amps, it may be caused by a faulty rating insert, receiver, or

sensor coil. Recheck that the insert rating matches the motor. If it is correct, carefully remove it from the receiver by

alternately lifting sides with a knife blade or thin screwdriver, and make sure it has no pins bent over. If the insert is

correct and its pins are okay, replace receiver and/or sensor coils.

Underload Light On

This is a normal protective function.

A. Make sure the rating insert is correct for the motor.

B. Adjusting the underload setting as described to allow the desired range of operating conditions. Note that a

DECREASE in underload setting is required to allow loading without trip.

C. Check for drop in amps and delivery just before trip, indicating pump breaking suction, and for unbalanced

line current.

D. With the power turned off, recheck motor lead resistance to ground. A grounded lead can cause underload trip.

Maintenance – Electronic Products

Subtrol-Plus (Obsolete - See SubMonitor)

Subtrol-Plus - Troubleshooting After Installation (Continued)

SYMPTOM POSSIBLE CAUSE OR SOLUTION

Tripped Light On

Whenever the pump is off as a result of Subtrol-Plus protective function, the red tripped light is on.

A steady light indicates the Subtrol-Plus will automatically allow the pump to restart as described,

and a ﬂ ashing light indicates repeated trips, requiring manual reset before the pump can be restarted.

Any other red light operation indicates a faulty receiver. One-half voltage on 460 V will cause tripped

light on.

Control Circuit

Fuse Blows

With power turned off, check for a shorted contactor coil or a grounded control circuit lead. The

coil resistance should be at least 10 ohms and the circuit resistance to panel frame over 1 megohm.

A standard or delay-type 2 amp fuse should be used.

Contactor Will

Not Close

If proper voltage is at the control coil terminals when controls are operated to turn the pump on, but

the contactor does not close, turn off power and replace the coil. If there is no voltage at the coil,

trace the control circuit to determine if the fault is in the Subtrol-Plus receiver, fuse, wiring, or panel

operating switches. This tracing can be done by ﬁ rst connecting a voltmeter at the coil terminals,

and then moving the meter connections step by step along each circuit to the power source, to

determine at which component the voltage is lost.

With the Subtrol-Plus receiver powered up, with all leads disconnected from the control terminals

and with an Ohmmeter set at RX10, measure the resistance between the control terminals. It should

measure 100 to 400 ohms. Depress and hold in the reset button. The resistance between the

control terminals should measure close to inﬁ nity.

Contactor Hums or Chatters

Check that coil voltage is within 10% of rated voltage. If voltage is correct and matches line voltage,

turn off power and remove the contactor magnetic assembly and check for wear, corrosion, and dirt.

If voltage is erratic or lower than line voltage, trace the control circuit for faults similar to the previous

item, but looking for a major drop in voltage rather than its complete loss.

Contactor Opens When Start

Switch is Released

Check that the small interlocks switch on the side of the contactor closes when the contactor

closes. If the switch or circuit is open, the contactor will not stay closed when the selector switch

is in HAND position.

Contactor Closes But

Motor Doesn’t Run

Turn off power. Check the contactor contacts for dirt, corrosion, and proper closing when the

contactor is closed by hand.

Signal Circuit Terminals

Do Not Energize

With the Subtrol-Plus receiver powered up and all leads disconnected from the Signal

terminals, with an Ohmmeter set at RX10, measure the resistance between the Signal

terminals. Resistance should measure close to inﬁ nite. Depress and hold in the reset button.

The resistance between the Signal terminals should measure 100 to 400 ohms.

A Amp or amperage

AWG American Wire Gauge

BJT Bipolar Junction Transistor

°C Degree Celsius

CB Control Box

CRC Capacitor Run Control

DI Deionized

Dv/dt Rise Time of the Voltage

EFF Efﬁ ciency

°F Degree Fahrenheit

FDA Federal Drug Administration

FL Full Load

ft Foot

ft-lb Foot Pound

ft/s Feet per Second

GFCI Ground Fault Circuit Interrupter

gpm Gallon per Minute

HERO High Efﬁ ciency Reverse Osmosis

hp Horsepower

Hz Hertz

ID Inside Diameter

IGBT Insulated Gate Bipolar Transistor

in Inch

kVA Kilovolt Amp

kVAR Kilovolt Amp Rating

kW Kilowatt (1000 watts)

L1, L2, L3 Line One, Line Two, Line Three

lb-ft Pound Feet

L/min Liter per Minute

mA Milliamp

max Maximum

MCM Thousand Circular Mils

mm Millimeter

MOV Metal Oxide Varister

NEC National Electrical Code

NEMA National Electrical Manufacturer

Association

Nm Newton Meter

NPSH Net Positive Suction Head

OD Outside Diameter

OL Overload

PF Power Factor

psi Pounds per Square Inch

PWM Pulse Width Modulation

QD Quick Disconnect

R Resistance

RMA Return Material Authorization

RMS Root Mean Squared

rpm Revolutions per Minute

SF Service Factor

SFhp Service Factor Horsepower

S/N Serial Number

TDH Total Dynamic Head

UNF Fine Thread

V Voltage

VAC Voltage Alternating Current

VDC Voltage Direct Current

VFD Variable Frequency Drive

W Watts

XFMR Transformer

Y-D Wye-Delta

Ω ohms

Abbreviations

Notes

M1311 03/07

Phone Franklin’s toll free SERVICE HOTLINE for answers to your pump and

motor installation questions. When you call, a Franklin expert will offer assistance

in troubleshooting and provide immediate answers to your system application

questions. Technical support is also available online. Visit our website at:

TOLL FREE HELP FROM A FRIEND

800-348-2420 • 260-827-5102 (fax)

www.franklin-electric.com

The Company You Trust Deep Down

Franklin Submersible Motors 2007 Users Manual

2007 to the manual 123b1374-84c0-425a-860c-8d4eba3cac1c

Navigation menu

Versions of this User Manual:

Views

Navigation