Cleveland Controls DFS-231-121 Switch Els PW 17895 Serving as a direct replacement

Serving as a direct replacement for normally closed valves

By sensing the pressure drop across filters or coils

As a veteran-grade Trane replacement part

this component features an automatic reset function

Cleveland Controls DFS-231-121 Switch Els PW 17895 Serving as a direct replacementThe Cleveland Controls DFS 231 121 is a fixed setpoint diaphragm differential pressure switch engineered for precision performance in HVAC pressure monitoring and combustion air applications. This SPDT air flow switch is factory calibrated to actuate on a pressure rise at 0. 05" . 02" w. c., providing a reliable safety interlock for systems requiring strict static pressure thresholds. Designed for versatility, the unit supports line voltage ranges