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SP2 Surge Protective Device

Installation & Operation

Instruction Manual

IB158003EN

Rev. 2

1.0 Introduction

This manual describes how to install a Surge

Protective Device (SPD) in parallel (shunt) across the

AC supply of the following types of electrical

systems:

• Single-Phase

• Split Phase

• Three-Phase Wye

• Three-Phase Delta

The SPD is designed to be installed on service

entrance, branch panels, and/or individual

equipment disconnects, and functions to protect

sensitive electronic equipment from damaging

voltage transients. The connecting wires do not

carry supply current. Instead, they carry only

short-duration currents that are associated with a

transient event.

These instructions do not cover all details,

variations, or combinations of the equipment, its

storage, delivery, installation, checkout, safe

operation, or maintenance. If you require further

information regarding a particular application or

installation that is not covered in this manual,

please contact Eaton’s Power Quality Technical Sup-

port at 1-800-809-2772, option 4, option 2.

1.1 Safety Precautions

A licensed/qualified electrician must complete all

instructions described in this manual in accordance

with the U.S. National Electrical Code, state and

local codes, or other applicable country codes. All

electrical codes supersede these instructions.

Improper installation can cause death, injury

and/or equipment damage. Follow all warnings

and cautions. Completely read and understand the

information in this instruction manual before

attempting to install or operate this equipment.

Improper wiring could cause death, injury, and/or

equipment damage. Only licensed/qualified

electricians who are trained in the installation and

service of electrical devices are to install and service

this equipment.

Use appropriate safety precautions and

equipment for arc flash protection.

During normal operation, hazardous voltages are

present inside the SPD.

When servicing the SPD, follow all safe work

practices to avoid electrical shock.

Do not perform a high-pot test with the SPD

connected to the electrical system. Failure to

disconnect the SPD during a high-pot test will result

in damage to the SPD.

Do not install with lead length less than six (6)

inches.

1.2 Catalog Numbering System

Series Voltage Code

SP2- 120 = 120V single-phase

240 = 240V single-phase

240S = 240V split-phase

240D = 240 delta

480D = 480 delta

208Y = 120/208 wye

480Y = 277/480 wye

600Y = 347/600 wye

4.0 Specifications

5.0 Warranty

Eaton warrants these products for a period of 2

years from the date of delivery to the purchaser to

be free from defects in both workmanship and

materials. Eaton assumes no risk or liability for

results of the use of the products purchased from it,

including but without limiting the generality of the

foregoing: (1) The use in combination with any

electrical or electronic components, circuits,

systems, assemblies, or any other materials or

substances; (2) Unsuitability of any product for use

in any circuit or assembly. Purchaser’s rights under

the warranty shall consist solely of requiring Eaton

to repair, or at Eaton’s sole discretion, replace, free

of charge, F.O.B. factory, and defective items

received at said factory within said term determined

by Eaton to be defective. The giving of or failure to

give any advice or recommendations by Eaton shall

not constitute any warranty by or impose any

liability upon Eaton.

The foregoing constitutes the sole and exclusive

liability of Eaton AND IS IN LIEU OF ANY AND ALL

OTHER WARRANTIES EXPRESSED, IMPLIED OR

STATUTORY AS TO THE MERCHANTABILITY,

FITNESS FOR PURPOSE SOLD, DESCRIPTION,

QUALITY, PRODUCTIVENESS OR ANY OTHER

MATTER. In no event shall Eaton be liable for

special or consequential damages or for delay in

performance of the warranty. This warranty does

not apply if the product has been misused, abused,

altered, tampered with, or used in applications other

than specified on the nameplate. At the end of the

warranty period, Eaton shall be under no further

warranty obligation expressed or implied. The

product covered by this warranty certificate can

only be repaired or replaced by the factory. For help

on troubleshooting the SPD, or for warranty

information, call 1-800- 809-2772, Option 4,

sub-option 2. Repair or replacement units will be

returned collect. If Eaton finds the return to be a

manufacturer’s defect, the product will be returned

prepaid.

Eaton

1000 Cherrington Parkway

Moon Township, PA 15108-44312, USA

www.eaton.com/spd

For Technical Support, please call 1-800-809-2772

© Eaton Corporation

All Right Reserved

Description Ratings

Surge current capacity per phase (Imax) 45kA

Nominal Discharge Current (In) 10kA

Short circuit current rating (SCCR) 200kA

SPD type Type 1 (can also be used in Type 2 applications)

System voltages available (VAC)

Single-Phase 120/240

Split-phase 240

Three-phase wye 208, 480, 600

Three-phase delta 240, 480

Protection modes

Single-phase L-N

Split-phase L-N

Three-phase wye L-G, L-L

Three-phase delta L-G, L-L

Maximum continuous operating voltage (MCOV)

SP2-120 150V

SP2-240 320V

SP2-240S 150V

SP2-208Y 150V

SP2-480Y 320V

SP2-600Y 420V

SP2-240D 320V

SP2-480D 550V

Input power frequency 50/60Hz

Enclosure rating NEMA 4X

Operating temperature -40°C through 65°C (-40°F through 149°F)

Operating humidity 5% through 95%, noncondensing

Operating altitude Up to 12,000 ft (3658m)

Agency certification and approvals UL1449 3rd Edition Type 1 Listed device

Warranty 2 years

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2.0 Installation

Refer to Section 1.2 and look at the label on the SPD

to verify that the SPD’s voltage rating and wiring

configuration matches that of the electrical system.

Use an AC voltmeter to measure the system’s line

voltage to ensure that the correct model of SPD is

being installed. Damage to the SPD may result if it

is connected to an electrical system of a higher

voltage or different wiring configuration.

2.1 Mounting

The SPD is to be mounted directly to the electrical

panel.

IMPORTANT!

• Choose a mounting location for the SPD that

provides the shortest and straightest possible

wiring (but not less than six inches lead

length) from the SPD to the electrical system

connections. Excessive lead length and sharp

bends will degrade SPD performance.

• If the electrical system uses an isolated

ground, the SPD must be isolated from

ground using insulated conduit fittings.

• When using conduit, avoid using 90° elbows

and keep the conduit run as short and straight

as possible.

Mount the SPD directly to the electrical panel using

a 3⁄4” locknut as shown in Figure 2-1.

To maintain the enclosure’s NEMA 4X rating, install

an appropriate gasket (not included) between the

SPD and the Enclosure’s wall.

Figure 2-1. Panel Installation

2.1.1 Conduit Installation

When mounting the SPD outdoors, use

weatherproof conduit and fittings to maintain the

enclosure’s NEMA 4X rating. See Figure 2-2.

Figure 2-2. Conduit Installation

2.2 Wiring

IMPORTANT!

• Be sure to follow all national, state, and local

electrical codes when making wiring

connections.

• When connecting the wires from the SPD to

the electrical system, cut the wires as

necessary to keep them as short as possible,

but not less than six inches.

• To maximize the SPD’s performance, twist

and bind the wires together to reduce the

impedance of the wire (one twist/inch).

• If the system utilizes an isolated ground, the

SPD’s ground wire must be connected to the

system’s isolated ground bus.

1. Locate the electrical system’s applicable

wiring diagram in Section 2.3. Reference this

wiring diagram as necessary in Steps 2, 3,

and 4.

2. Connect the SPD’s ground wire (green) to the

system’s ground connection. Delta and Wye

only.

3. Connect the SPD’s neutral wire (white) to the

system’s neutral connection (not required for

3-phase Delta and Wye systems).

4. Connect the SPD’s phase A, B, and C wires

(black) to the system’s corresponding phase

A, B, and C connections according to

applicable national, state, and local electrical

codes.

2.3 SPD Wiring Diagrams 3.0 Operation

3.1 Power Up and System Checkout

Apply system power. The Green LED should light. If

the connected LED does not light, remove power,

check connections, and test again. If the LED still

does not light, contact your supplier.

3.2 Routine Operation

After system power has been applied, the SPD

automatically begins to protect down-stream

electrical devices from damaging voltage transients.

With all phase voltages present, the LED indicator

reports the status of the protection elements and is

active when all of them are intact and providing

protection. Any loss of protection is signaled when

the LED turns from Green to Red.

The device is not repairable and contains no user

serviceable parts. If the unit fails, as evidenced by

the LED turning Red, the unit must be replaced.

Please contact your distributor as the SPD may be

under warranty.

DO NOT use the Suppression Circuit Status LEDs as

an indication of the presence or absence of system

phase voltages.

Avoid sharp bends

in conduit and longer

than necessary wire

lengths.

Keep conduit length

as short and

straight as possible.

Tighten locknut to

20.3 Lb-In (2.3N•m)

For NEMA 4X installation, install appropriate

customer supplied gasket between

SPD and enclosure wall.

PHASE A

NEUTRAL

SPD

Neutral (WHT)

Phase A (BLK)

Grounding and

bonding per

national and local

electrical codes

Single-Phase

(120, 240)

PHASE A

PHASE B

NEUTRAL

SPD

Neutral (WHT)

Phase B (BLK)

Phase A (BLK)

Grounding and

bonding per

national and local

electrical codes

Split Phase

(240S)

SPD

PHASE A

GROUND

PHASE B

PHASE C

Phase C (BLK)

Phase B (BLK)

Phase A (BLK)

Ground (GRN)

3-Phase Delta

(240D, 480D)

SPD

PHASE A

NEUTRAL

PHASE B

PHASE C

Phase C (BLK)

Phase B (BLK)

Phase A (BLK)

Ground (GRN)

Grounding and

bonding per

national and local

electrical codes

3-Phase Wye

+ Ground

(208Y, 480Y, 600Y)