2. ICM Controls
  3. ICM531
ICM531

ICM Controls ICM531 Application/Install Guide

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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
BLK
BLK
Neutral
Bus
WHT
Wire
Nut
ICM531
A C
B
Incoming
3-Phase Voltage

Ground
Bus
Type 1 Wiring – 
Ground Bus
BLK
BLK
BLK
Neutral
Bus
WHT
Wire
Nut
A C
B
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
C
B
A
Ground
Incoming
3-Phase Voltage

BLK
BLK
BLK
WHT
ICM531
Neutral
Bus
Type 1 Wiring – 
BLK
BLK
BLK
Ground Bus
Neutral
C
B
A
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
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