The McDonnell & Miller 302900 Cam

Quiet Operation: Designed for noise-sensitive environments

While the wall-mount version is a contained assembly

and industrial facilities to maintain calibrated settings and prevent setpoint drift caused by external interference

McDonnell & Miller FS254 Snap Switch Refrigerant The McDonnell & Miller 302900The McDonnell & Miller FS254 Snap Switch (Part Number 120610) is a heavy duty, general purpose liquid flow switch engineered for high reliability monitoring in HVACR and industrial hydronic systems. This unit is the direct replacement for the legacy FS 254 and offers a field proven solution for starting or stopping electrically operated equipment including automatic burners, circulator pumps, and system alarms. Built with a NEMA 4 enclosure, the FS254