Pay in 4 interest-free payments of $12.52 Learn more
Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
OEM Compatibility: Serves as the official replacement for part numbers 57W7901
The snap-action switch provides a clean break
It will mechanically reconnect the electrical circuit once the sensor detects the temperature has dropped to the 95°F closing point
this unit features Silver Cadmium Oxide contacts to provide superior conductivity and resistance to welding under high-inductive loads
Schneider Electric (Barber Colman) 21-933-1 Cover OEM Compatibility: Serves as theFor field technicians maintaining legacy pneumatic systems, the Schneider Electric (Barber Colman) 21 933 1 Cover provides a standardized replacement solution for aging or damaged thermostat faces. This gray plastic cover is engineered as the direct successor for a wide array of vintage components, including the 21 933, 21 934, 21 939, and high frequency units like the CT 12 and CT 921. Designed for 2x2 dial type pneumatic room thermostats, it
