Switch Assemblies & Kits

McDonnell & Miller model number 7B is an automatic reset proportioning switch assembly for model number 93, 193, 94, and 194 controls. This switch features a single pole double break switch for multi-function for alarm or valve actuation or low water cut-off. Proportional signal controls a proportioning valve to maintain a constant water line. Learn More

McDonnell & Miller model number 7BM is a manual reset proportioning switch assembly for model number 93, 193, 94, and 194 controls. This switch features a single pole double break switch for multi-function for alarm or valve actuation or low water cut-off. Proportional signal controls a proportioning valve to maintain a constant water line. Learn More

McDonnell & Miller model number SWA-42S is a snap switch assembly with automatic reset for series 42 controls. Learn More

McDonnell & Miller model number SWA-150S is a snap switch assembly with automatic reset for model number 150S, 150S-B, 157S, 157S-A, 157S-P, 157S-R, and 157S-RL controls. Learn More

McDonnell & Miller model number SWA-150S-MD is a snap switch assembly with automatic reset for model number 150S-B-MD, 150S-MD, 157S-MD, 157S-P-MD, 157S-R-MD, 157S-RB-MD, 157S-RB-P-MD, 157S-RD-MD, and 157S-RLS-MD controls. Learn More

McDonnell & Miller model number SWA-158S is a snap switch assembly with automatic reset for model number 158S controls. Learn More

McDonnell & Miller model number SWA-159S is a snap switch assembly with automatic reset for model number 159S controls. Learn More

McDonnell & Miller snap-action switch assembly with manual reset for 150S and 157S model controls also with manual reset. Learn More

Johnson Controls pneumatic gradual switch conversion kit to convert any S-224 switch to a 2 psi span. Learn More

Johnson Controls SPDT snap action auxiliary switch kit (one switch) for M100 series motor actuators to provide switching functions. The switches are for use in heating, refrigeration, air conditioning, and industrial applications. Learn More

Johnson Controls SPDT snap action auxiliary switch kit (two switches) for M100 series motor actuators to provide switching functions. The switches are for use in heating, refrigeration, air conditioning, and industrial applications. Learn More