Eaton Logo

What is a "pass through" overload relay?

A pass through overload relay is a panel mount relay with built in CT's that does not direct mount to a contactor.  Instead, the three leads from the contactor "pass through" the CT openings and then connect to the motor/load.  The C440 versions are for use with NEMA contactors and the XTOE versions are for use with IEC.