ABB TF42-35 Thermal Overload Relay 29-35A

The ABB TF42-35 Thermal Overload Relay protects electrical motors from damage by monitoring motor current levels. This part works through bimetallic strips that react to temperature variations. The bimetallic strips in the relay activate when motor current reaches its safety threshold by heating up and bending to disconnect the circuit. The part protects motors from damage by shutting off power during heavy loads or other abnormal operating scenarios. The overload relay functions in multiple HVAC systems settings to safeguard motors powering compressor and fan equipment.