Electronic Overload Relays
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Bimetallic Overload Relays
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SPO Class 20 Bimetallic Overload Relay (260-400A – Direct Mount to RSC-300 and RSC-400 Contactors)$384.00Extended Part No: SPO-400H-350A 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.- SPO Class 20 Bimetallic Overload Relay (400-600A – Direct Mount to RSC-600 and RSC-800 Contactors)$1,147.00Extended Part No: SPO-800H-500A 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.