SPO Class 20 Bimetallic Overload Relay (200-300A – Direct Mount to RSC-300 and RSC-400 Contactors)

Extended Part No: SPO-400H-250A

Benshaw RMSO/SPO Series Overload Relays are bimetallic-style relays designed to protect AC-3 circuits and motors against overloads, phase failure, long starting times and stalling of the motor.