MARS 33217 Sequencer Els PW 17895 and other non-corrosive gases

and other non-corrosive gases

Universal Compatibility: Specifically threaded and tapered for a seamless fit with McDonnell & Miller RS series sensors

Installing a switch with a different water column rating can bypass safety protocols or cause the furnace to short cycle

streamlining maintenance workflows for building managers and contractors

specifically to protect compressors during off-cycles

MARS 33217 Sequencer Els PW 17895 and other non-corrosive gasesThe MARS 33217 is a heavy duty 240V heat sequencer engineered for precise multi stage control in electric furnaces, heat pumps, and air handlers. Designed for veteran contractors, this thermal time delay relay features a DPST (Double Pole Single Throw) or SPDT (Single Pole Double Throw) switch action, allowing for the staggered activation of heating elements to prevent localized circuit overloads and nuisance tripping. Built with a solid state PTC