ICM Controls ICM531 Application/Install Guide

Brand: ICM Controls

Model: ICM531

Type: Application/Install Guide

ICM Controls ICM531 is a versatile surge protective device suitable for both indoor and outdoor applications. It safeguards electrical systems from voltage spikes and surges, offering reliable protection for three-phase Delta 480 VAC or Wye 277/480 VAC configurations. With a compact design and straightforward installation process, the ICM531 can be effortlessly integrated into electrical panels or disconnect switches. The device features a diagnostic green LED indicator, providing real-time status updates on surge protection.

Description Ratings

Service Voltage (3-Phase) 480 VAC Delta OR 277/480 VAC Wye

Short Circuit Current

Rating (SCCR) 200 kA

Nominal Discharge

Current (In) 20 kA

SPD Type Type 1 (Can also be used in Type 2 applications)

Surge Protection

Technology TFMOV

Protection Mode 



VPR (Vpk)

VOLTS (V) MODE VPR (Vpk)

480 L-L 2500

480/277 L-L 2500

L-N 1200

Maximum Continuous

Operation Voltage (MCOV)

L-L: 700 VAC

L-N:

Input Power Frequency 50/60Hz

Diagnostics 

Enclosure Rating 

outdoor and indoor installation

Installation Point Electrical panel/disconnect

Dimensions 4.3” X 4.1” X 2.3”

Operating Temperature -40°F to 185°F (-40°C to 85°C)

Operating Humidity 

Operating Altitude 

Agency Certication and

Approvals



Listed

ICM531



ICM531

ICM531





ICM531

ICM531 can





















E347279

MAINTENANCE

MODE OF OPERATION

SPECIFICATIONS







disconnect.



ICM531



ICM531

electrical panel.

ICM531.







Wiring Type 1 installation

 





codes.

 



Wiring Type 2 installation

 





national electrical codes.







ELECTRICAL SHOCK HAZARD!

–

Before installing

this unit, turn o power at the main service panel by

removing the fuse or switching the appropriate circuit

breaker to the OFF position.

• WARNING — No Serviceable Parts (Attention: Aucune pièce

remplaçable ou reparable).

• WARNING — Shock hazard — Do not open (ATTENTION – RISQUE

DE CHOC – NE PAS OUVRIR).

INSTALLATION, OPERATION & APPLICATION GUIDE



www.icmcontrols.com

ICM531

Surge Protective Device for 3-Phase Delta 480 VAC or Wye 277/480 VAC

IMPORTANT SAFETY INFORMATION

INSTALLATION INSTRUCTIONS

Limited lifetime

product, up to a 3-year

$10,000 connected

equipment warranty

Please follow all State, Local and National electrical codes when

installing this product. Installation should only be done by a licensed

electrician for Type 1 devices or a licensed HVAC technician for Type

2 devices.

BLK

Neutral

Bus

WHT

Wire

Nut

ICM531

A C

Incoming

3-Phase Voltage



Ground

Bus

Type 1 Wiring – 

Ground Bus

BLK

Neutral

Bus

WHT

Wire

Nut

A C

Incoming

3-Phase Voltage



ICM531

Type 2 Wiring – 

Optional

cornered

ground on

any of the

phases

Grounded

on any of

the phases

Ground

Bus

Neutral

Ground

Incoming

3-Phase Voltage



BLK

WHT

ICM531

Neutral

Bus

Type 1 Wiring – 

BLK

Ground Bus

Neutral

Ground

WHT

ICM531

Neutral

Bus

Incoming

3-Phase Voltage



Type 2 Wiring – 

  Black

WHT White

  Incoming phase

Ground





For the ease of checking the SPD protection

status, the LED display should face

outwards aer installation has been

complete.





is a Type 1 and 2 SPD, designed to

be compatible with 3-phase Delta and

3-phase Wye voltage conguration. Please

check your supply voltage conguration

and voltage levels before installing the

 per wiring diagram.



• When installing the Surge Protecting

Device (SPD), avoid sharp bends in the

conduit and long line sets.

• Keep the mounting conduit straight and

short in length

  Black

WHT White

  Incoming phase

Ground





For the ease of checking the SPD protection

status, the LED display should face

outwards aer installation has been

complete.





is a Type 1 and 2 SPD, designed to

be compatible with 3-phase Delta and

3-phase Wye voltage conguration. Please

check your supply voltage conguration

and voltage levels before installing the

 per wiring diagram.



• When installing the Surge Protecting

Device (SPD), avoid sharp bends in the

conduit and long line sets.

• Keep the mounting conduit straight and

short in length

LIMITED LIFETIME PROTECTION WARRANTY

Review enclosed warranty information for full details & registration information

For warranty registration, please go to www.icmcontrols.com and click on

Warranty Registration



800.365.5525



Phone: Fax: 

www.icmcontrols.com

WIRING DIAGRAMS – DELTA CONFIGURATION

WIRING DIAGRAMS – WYE CONFIGURATION

ICM Controls ICM531 Application/Install Guide

ICM Controls ICM531 Application/Install Guide

ICM Controls ICM531 Application/Install Guide

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