McDonnell & Miller 310462 Switch Assembly Els PW 17895 though it is designed for

though it is designed for switching between 3 and 15 psi

Robust Construction: Built to withstand the high ambient temperatures common in sealed combustion chambers

Its rugged construction and CSA certification make it the industry standard for 2 PSI piping systems

Key Benefits Precise Monitoring: Includes a factory-calibrated thermometer for immediate room temperature verification

McDonnell & Miller 310462 Switch Assembly Els PW 17895 though it is designed forThe McDonnell & Miller 310462 (Model SWA 150S) is a heavy duty snap action switch assembly designed for precise low water cut off and pump controller transitions. This automatic reset assembly is a critical replacement component for Series 150S and Series 157S mechanical boiler controls. Built to manage steam boiler water levels up to a maximum operating pressure of 150 psi, the SWA150S provides reliable SPDT switching to prevent dry fire conditions