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This OEM furnace pressure switch monitors the vacuum created by the inducer motor to ensure proper venting of combustion gases
making it essential for specific high-efficiency furnace models that require high static pressure for safe operation
The MARS 61755 is rated for 40 Amps FLA (Full Load Amps) and up to 240 Amps LRA (Locked Rotor Amps) at 240V
as the flame sensing circuit depends on a solid reference to the chassis ground
it can be used for SPST or SPDT applications by utilizing only the necessary terminals
Lennox 53H12 Run Capacitor Els PW 17895 This OEM furnace pressure switchThe Lennox 53H12 is a professional grade 10 Microfarad 440Vac Round Run Capacitor designed for high duty cycle applications in Lennox residential and light commercial HVAC systems. This OEM replacement part, also identified by part number 53H1201, is critical for maintaining correct motor phase displacement and ensuring efficient compressor or fan motor operation. Rated for 440V, it provides superior overhead for systems currently using 370V