Overload Relays

We deal  Three pole (3pole) range from 0.1amps to 200amps

Overload relays protect a motor by sensing the current going to the motor. Many of these use small heaters, often bi-metallic elements that bend when warmed by current to the motor. When current is too high for too long, heaters open the relaycontacts carrying current to the coil of the contactor.