ICM442 Motor Temperature Controller – Three Phase Voltage Monitor & Motor Protection

The ICM442 is a rugged and reliable motor temperature controller designed to protect three-phase motors from costly thermal damage. Built for durability, this controller continuously monitors motor winding temperatures and automatically shuts down power before overheating occurs.

Engineered for efficiency, the ICM442 supports up to four (4) 100-ohm thermistors in series, ensuring accurate temperature detection across motor windings. Its duty-rated SPST relay (10A, 250 VAC) provides dependable control, making it a practical choice for industrial and commercial motor protection applications.

Key Features:

• Protects motors from thermal overload and overheating

• Monitors winding temperature with up to 4 thermistors in series

• Integrated SPST relay: 10 amp, 250 VAC control rating

• Designed for three-phase voltage monitoring and protection

• Cost-effective solution with rugged construction

• Ideal for HVAC, refrigeration, and industrial motor applications

The ICM442 offers a low-cost yet effective way to extend motor life, reduce downtime, and prevent expensive repairs caused by over-temperature conditions. Although now listed as an obsolete/legacy product, it remains widely recognized as a dependable solution for motor temperature and voltage monitoring.