ICM Controls ICM492DX Monitor

The ICM Controls ICM492DX Single-Phase Voltage Monitor is designed to protect compatible HVACR compressors and motors against abnormal line voltage and rapid short cycling. Operating with an 80–300 VAC line voltage input, this electronic protection control continuously measures incoming RMS voltage and uses a digital display to help technicians monitor electrical conditions.

The ICM492DX motor protection control features adjustable overvoltage and undervoltage thresholds, an adjustable anti-short-cycle delay, and fault-response settings.

Its SPDT dry-contact relay output provides normally open and normally closed switching contacts for integration into compatible equipment control circuits. The unit also includes an 18–240 VAC control voltage input, 50/60 Hz operation, and fault-history memory.

For proper HVAC compressor voltage protection, verify the supply voltage, relay contact ratings, contactor coil requirements, and wiring arrangement before installation.

Follow the manufacturer's instructions when configuring voltage limits and reset functions. This single-phase line voltage monitor is intended for qualified technicians servicing compatible air conditioning, refrigeration, and motor-driven equipment.

Key Benefits

• 80–300 VAC line voltage input for single-phase monitoring applications.

• Overvoltage and undervoltage protection with adjustable operating thresholds.

• Adjustable anti-short-cycle delay to reduce rapid restarting after power interruptions.

• Backlit digital display showing incoming RMS voltage.

• SPDT dry-contact relay for compatible control circuits.

• 18–240 VAC control input and 50/60 Hz frequency compatibility.

• 50-fault memory to assist electrical troubleshooting.

• Voltage measurement accuracy rated at ±2%.

Common Questions

Q: What does the ICM492DX single-phase voltage monitor do?

A: It monitors incoming line voltage and changes relay contact states when voltage falls outside configured limits. It also provides anti-short-cycle protection to help prevent rapid equipment restarting.

Q: Can the ICM492DX protect an air conditioning compressor?

A: Yes, when properly integrated into a compatible compressor control circuit. Verify the equipment voltage, relay ratings, contactor configuration, and manufacturer's installation instructions.

Q: What voltage range does the ICM Controls ICM492DX support?

A: The manufacturer specifies an 80–300 VAC line voltage input, with adjustable overvoltage and undervoltage settings. The control voltage input is rated for 18–240 VAC.

Disclaimer

While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

ICM492DX is the cross for ICM492D