making it a staple for field service technicians

1% at 0°C

making it a versatile choice for building automation sequences

Its robust design is optimized for rapid installation in tight mechanical rooms where reliability is non-negotiable

Smith natural gas commercial platforms

McDonnell & Miller 2-M 110100 Switch R-410A making it a staple forThe McDonnell & Miller 2 M (110100) is a heavy duty, SPDT manual reset switch engineered for field installation on Series 47, 247, 51, 51 S, 53, and 63 boiler water feeders. As a low water cut off switch, this component provides critical burner protection by interrupting the circuit if water levels drop below the safe operating line. Designed for versatility in commercial and residential steam systems, the 110100 switch features dual voltage