This SPST normally closed switch is engineered to monitor heat exchanger temperatures effectively

Direct OEM Compatibility: Serves as the official successor to GKT2012

this violet-coded component ensures your RV81/210D/325-7A series equipment operates within the specified 4-12" W

this is an automatic reset limit switch which reconnects power once the ambient temperature drops 50 degrees from the trip point

York S1-024-19082-028 Sequencer Relay This SPST normally closed switchThe York S1 024 19082 028 is a field proven 24V heat sequencer relay engineered for precise staging of electric heating elements and blower motors in residential and light commercial air handlers. This OEM York replacement part features a multi switch configuration designed to prevent high inrush currents and nuisance tripping by staggering the activation of resistive loads. It operates on a standard 24V AC control circuit and is built with robust