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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
OEM Reliability: Built to original manufacturer specifications
the control board cannot verify combustion blower operation
ensuring the snap switch triggers accurately during proof-of-flow sequences for pumps
The enclosed body design protects internal components from dust and debris
and unit heaters
MARS 33247 Thermal Time Delay OEM Reliability: Built to originalThe MARS 33247 Thermal Time Delay is a field proven SPDT N O sequencer designed for precision timing in residential and commercial HVACR systems. Engineered to handle high current electric heat and air conditioning loads, this 24V control voltage relay utilizes a solid state PTC device and a snap acting disc to ensure positive make break action. With a delay on make range of 124 seconds and a delay on break range of 1575 seconds, this 33247 sequencer