Hubbell Euclid Lifting Magnet Controller 4295 Users Manual Euclid™ Controllers

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Hubbell Industrial Controls, Inc.

Euclid™ Lifting Magnet Controllers 4295

Resistor Type Automatic Discharge

Specifications 4295 • March 2004 • Replaces July 1990

Page 1 of 2

Features

 Front-Wired Front-Removable components.

 Mechanically interlocked "LIFT" and "DROP"

contactors.

 Permanently connected discharge path com-

pletely independent from the line.

 High-Thermal capacity resistor discharge path.

 Peak magnet induced voltage limited to under

900 volts.

 Long electrical contact life.

 Minimum Maintenance.

 Dribble feature - Standard.

 Ventilated NEMA 3R Enclosure.

Description

The Euclid Type 4295 Magnet Controllers incorpo-

rate heavy duty time proven components arranged

to provide optimum control of your lifting magnets.

A mechanically rugged high thermal capacity dis-

charge resistor assembly is permanently connected

in parallel with the magnet and provides a safe

discharge path for the stored magnetic energy.

With Euclid magnet controllers, induced volts can-

not return to the line, permitting rectified power

supplies to be used without the added expense of

special protective loads or by-pass circuits.

Automatic Discharge

Type Controllers

The Euclid Type 4295 Automatic Discharge Type

Lifting Magnet Controller provides a fast and clean

release of magnet loads by applying full voltage

reverse current to the magnet. The full voltage

reverse current feature permits the operator to

promptly return for another lift.

The drop contactor is under the control of the op-

erator's Master "Switch" and the discharge sensor

module (DSM). When the operator's Master

"Switch" signals the magnet controller to drop the

load, the "LIFT" contactors (1L+2L) open. The

stored magnet energy is dissipated in the discharge

resistor. When the discharge voltage declines to

approximately 300 volts, the discharge sensor

module (DSM) energizes the drop relay (DR) which

in turn enables the drop contactor (D) to close ap-

plying full voltage reverse current to the magnet and

begin the adjustable time reverse current cycle.

After the completion of the timed reverse cycle the

drop relay (DR) and drop contactor (D) are de-ener-

gized.

Type Controllers

The Euclid Type 4295 Lifting Magnet Controllers

are suited for many uses from light scrap handling

to the handling of heavy billets of plates. It may be

used with all types and makes of dc lifting magnets.

SYMBOL FUNCTION SYMBOL FUNCTION

DR DROP RELAY MOV SURGE SUPRESSOR

P1 POTENTIOMETER RES1 DISCHARGE RESISTOR

CFU CONTROL FUSE RES2 FORCING RESISTOR (IF USED)

RFU DROP FUSES DSM DISCHARGE SENSOR MODULE

D2 DIODE D DROP CONTACTOR

D1 RECTIFIER, MAGNET DISCHARGE

PATH 1L, 2L LIFT CONTACTOR

Euclid™ Lifting Magnet Controller :: Resistor Type Automatic Discharge 4295

Hubbell Industrial Controls, Inc.

A subsidiary of Hubbell Incorporated

4301 Cheyenne Dr., Archdale, NC. 27262

Telephone (336) 434-2800 • FAX (336) 434-2803

http://www.hubbell-icd.com

Sales@hubbell-icd.com

APPROXIMATE DIMENSIONS & WEIGHTS

DO NOT USE FOR CONSTRUCTION PURPOSES

CABINET OUTLINE SIZE 1, 2, 3 & 4 J2M4215

Full Voltage Controllers

CONTROLLER

SIZE W H D M MW MH NET WT.

1C

1

2

3

4

16.37"

16.12"

16.12"

19.12"

19.12"

12.00"

21.90"

21.90"

27.90"

27.90"

11.00"

10.00"

10.00"

14.25"

14.25"

14.00"

24.25"

24.25"

30.25"

30.25"

9.50"

11.50"

11.50"

14.50"

14.50"

12.64"

23.00"

23.00"

29.00"

29.00"

Consult

Factory

FULL VOLTAGE MANUAL DISCHARGE TYPE

Size System

Voltage

Control

Voltage

Magnet

Current

Part

Number

Min

Cold

Magnet

Ohms

Max

Cold

Magnet

Ohm

1C 300 max. 12 7.0 - 13 91911-005 19.23 32.86

1C 300 max. 24 7.0 - 13 91911-XXX 19.23 32.86

1C 300 max. 12 13 - 25 91911-006 10.00 17.69

1C 300 max. 24 13 - 25 91911-XXX 10.00 17.69

1 230/250 230/250 7.0 - 13 91843-202 19.23 32.86

1 230/250 230/250 13 - 25 91813-202 10.00 17.69

1 300 max. 24 13 - 25 91915-004 10.00 17.69

1 300 max. 12 13 - 25 91915-002 10.00 17.69

2 230/250 230/250 25 - 50 91814-202 5.00 9.20

2 300 max. 24 25 - 50 91877-202 5.00 9.20

2 300 max. 12 25 - 50 91877-XXX 5.00 9.20

3A 230/250 230/250 50 - 85 91815-202 2.94 4.60

3A 300 max. 24 50 - 85 91880-202 2.94 4.60

3A 300 max. 12 50 - 85 91880-XXX 2.94 4.60

3B 230/250 230/250 85 - 130 91816-202 1.92 2.71

3B 300 max. 24 85 - 130 91863-202 1.92 2.71

3B 300 max. 12 85 - 130 91863-XXX 1.92 2.71

4 230/250 230/250 130 - 175 91817-202 1.43 1.77

4 300 max. 24 130 - 175 91861-202 1.43 1.77

4 300 max. 12 130 - 175 91861-XXX 1.43 1.77

* Controller ampacity is based on being used with a 50% duty magnet in a 40° C ambient.

PILOT DEVICES & ACCESSORIES ADDITIONS

FOR MAGNET CONTROLLER

DESCRIPTION PART

NUMBER

"Lift-Drop" NEMA 1 enclosed Master Switch

(Standard for Euclid Lifting Magnet Controllers) J2M4215

"Lift-Drop" NEMA 3R enclosed Master Switch Consult Factory

Type 4211, Catalog #4211-125MISXI "Lift-Drop"

NEMA 1 Surface Mounting Master Switch 4211-99848-001

Type 4211, Catalog #4211-125MIFXI "Lift-Drop"

NEMA 1 Flush Mounting Master Switch 4211-99848-002

Type 4216, Catalog #SWPBC-MXI "Lift-Drop"

NEMA 4 Maintained Type Surface Mounting

Push Button Station

Consult Factory

These Pilot Devices are arranged to permit "Dribbling" when

used with Euclid Magnet Controllers.

HOW TO ORDER

Refer to Price List 4295

1. Specify Magnet

Operating Circuit,

COLD.

2. Size of Controller &

Voltage

3. Magnet controller Pilot

Devices and

Accessories are

additions.

4. Order by Part Number