RMSO/SPO Series Bimetallic Overload Relays
Full Voltage Overload Relays
Simple, fully adjustable overload relays.
RMSO/SPO Series Overload Relays are bimetallic-style relays designed to protect AC-3 circuits (up to 150A @ 690V) and motors against overloads, phase failure, long starting times and stalling of the motor. RMSO and SPO Series overload relays can be integrally mounted to Benshaw RC and RSC contactors for thermal overload protection.
The Benshaw Promise
Benshaw Overload Relays are guaranteed for two full years. Other manufacturers limit their warranties to just one year. But at Benshaw, we believe that, because we build them better, we can guarantee them longer. We call that “the Benshaw Promise.”
