this motor protector replaces legacy part 071-0684-00 and is primarily used in 20HP to 30HP compressor configurations found in older McQuay chillers and air handlers

This setup is compatible with a wide range of Schneider Electric and Barber Colman building automation components

we recommend inspecting seals and diaphragms annually in critical HVACR or process control applications

it utilizes a dedicated sense probe to monitor ionization

Lennox 58H66 Potential Relay 319847-401 this motor protector replaces legacyThe Lennox 58H66 Potential Relay is a critical electrical component designed for precision motor starting in residential and commercial HVAC applications. Engineered for systems requiring a high torque start, this SPNC (Single Pole Normally Closed) relay manages the disconnection of the start capacitor once the motor reaches its designated speed, preventing winding damage and ensuring optimal cycle reliability. This genuine Lennox OEM replacement part