ICM492 Single Phase Motor Protection, 80-300 VAC

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.

Features

• Protects against over and under voltage and rapid short cycling caused by transient faults and power interruptions
• Easy view, backlit digital display
• RMS voltage set point
• Adjustable voltage set point
• Adjustable over voltage setting
• Adjustable under voltage setting
• Adjustable anti-short cycle time delay
• Adjustable response time
• Control mode
• Universal line voltage input
• Heavy duty SPDT relay output
• Universal control voltage input (for integrating a thermostat)

User Adjustable Settings

• Voltage set point: 80-300 VAC
• Anti-short cycle time delay: 0-720 seconds
• Over voltage setting: 5-25%
• Under voltage setting: 5-25%
• Control mode: On & Off
• Response time: 0.1-10 seconds

Mode of Operation:

The ICM492 continuously monitors incoming line voltage for faults and displays RMS voltage on the digital display. When line voltage is appropriate, the ICM492 will close COM and N.O. relay contacts. When incoming line voltage is outside of the user selected parameters, the ICM492 will close COM and N.C. relay contacts and indicate a fault condition by flashing FAULT on display.

The SELECT menu has the following user adjustable settings: voltage setpoint, time delay, over voltage, under voltage, control mode, and response time. Time delay prevents system short cycling caused by transient faults and rapid power interruptions. The response time on the fault condition can be adjusted to help reduce nuisance trips from transient faults. When Control Mode setting is selected ON, the ICM492 will close COM and N.O. relay contacts only when control voltage is present at Control Voltage terminals. The relay contacts can be used to direct drive the load as long as current rating is not exceeded.