McDonnell & Miller 5-M Switch 30067439-890 maintaining the system integrity required

maintaining the system integrity required for veteran contractors managing legacy hydronic configurations

Durable Construction: Engineered with a weather-protected housing to resist environmental corrosion and moisture ingress

Its compact design is optimized for the rigors of mechanical rooms

Can I use this as a substitute for a 4-blade assembly

McDonnell & Miller 5-M Switch 30067439-890 maintaining the system integrity requiredThe McDonnell & Miller 5 M Switch (Part Number 110400) is a critical safety component designed for heavy duty steam boiler control. This manual reset general purpose switch is engineered specifically to interface with Series 93, 193, 94, and 194 combination low water cut off and pump controllers. Featuring a 2 SPDT (dual single pole, double throw) configuration, the 5 M allows for the simultaneous management of independent circuitstypically the burner