ICM Controls ICM492 Single Phase Line Voltage Monitor

The ICM492 constantly monitors line voltage and protects single-phase equipment against low and high voltage conditions, and rapid short cycling due to voltage fault or power interruption. Its easy-view, backlit digital display makes it user friendly to read and monitor voltage conditions, and adjust parameters to meet specific needs.

Protects Against Over and Under Voltage, and Rapid Short Cycling caused by Transient Faults and Power Interruptions
Easy-view, Backlit Digital Display
RMS Voltage Monitoring
Adjustable Voltage Set Point
Adjustable Over Voltage Setting
Adjustable Under Voltage Setting
Adjustable Anti-Short Cycle Time Delay
Adjustable Response Time
Control Mode
5-Fault Memory
Universal Line voltage Input
Heavy Duty SPDT Relay Output
Universal Control Voltage Input for integrating a thermostat

SPECIFICATIONS

User Adjustable Settings:
– Voltage setpoint: 95-280 VAC

– Anti-short cycle time delay: 0-720 seconds

– Over voltage setting: 5-25%

– Under voltage setting: 5-25%

– Control mode: On and Off

– Response time: 0.1 to 10 seconds

Inputs:

– Voltage: 80 to 300 VAC

– Frequency: 50/60 Hz

– Accuracy: ±2%

– Low Power Consumption: max 50 mA @ 120V, max 100 mA @ 240V

– Control Voltage: 18 to 240 VAC

Output:

– Type: Dry relay contacts

– Form: SPDT

– Relay Contact Ratings:

– N.C. Contacts: 10A resistive @ 277 VAC

– N.O. Contacts: 10A resistive @ 277 VAC

– Connection Terminals: 0.25” male fast-on

Environmental:

– Operating temperature range: -40°C to +70°C

– Storage temperature range: -40°C to +85°C

– Maximum Operating/Storage Relative Humidity: 95% non-condensing

REPLACES

Wagner / DiversiTech: DSP-1

Sell Sheet

Installation Guide

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ICM Time Delays (Anti-short cycle protection)
ICM Voltage Monitors (Single and three-phase)
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ICM Surge Protectors (AC and refrigeration)
ICM Fan Speed Controllers (ECM and PSC motors)
ICM Head Pressure Controls for condensers
ICM Compressor Lockout Relays
ICM Defrost Controls and Timers
ICM Line Voltage Monitors
ICM Replacement Boards for HVAC equipment

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