NEMA Overload & Current Sensitive Relays

Offering a wide range of overload relays. Our NEMA class of overload relays are used to protect motors from the cold, such as refrigeration, where the ESP200 uses its auto reset mode to help you avoid shutdowns. To protect motors against over-heating, the ESP200 also has phase unbalance protection and thermal memory to prevent the motor from restarting while too hot.