Pressure-Sensitive Interrupter: Integrated internal safety mechanism designed to disconnect the capacitor in the event of an internal fault or end-of-life pressure buildup

this limit control stilt is a standard truck-stock item for troubleshooting overheating HVAC systems where a brown sleeve limit switch is specified

05" to 12" w

typically supporting single and multi-phase configurations up to 277V depending on the specific heater kit it is installed in

Lennox 34M77 Pressure Switch Els PW 17895 Pressure-Sensitive Interrupter: Integrated internal safetyEnsure reliable sequence of operation with the Lennox 34M77 Pressure Switch, a critical safety component designed for heating and cooling systems. This OEM Lennox furnace pressure switch is engineered to monitor draft pressure and confirm proper inducer motor performance before allowing the ignition process to begin. Featuring a precise 1. 00"wc SPST (Single Pole Single Throw) configuration, this switch actuates at 1. 00" W. C. and resets at 1. 15" W.