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Utilizing this 3PDT 120V K3 relay ensures that your system maintains its original factory engineering specifications
Industrial Durability: Thermal-resistant construction prevents premature coil burnout during continuous duty cycles
this direct-fit component eliminates the diagnostic uncertainty associated with universal relays
this kit ensures the furnace shuts down if temperatures exceed safe operating parameters
an electrical suppressor to mitigate signal interference
Johnson Controls A421ABC-04 Temperature Control Els PW 17895 Utilizing this 3PDT 120V K3The Johnson Controls A421ABC 04 is a line voltage, single stage electronic temperature control designed to provide precise switching for HVACR systems. Operating on 120 240 VAC, this controller features a versatile SPDT output relay that manages heating or cooling applications across a wide temperature control range of 40 to 212? F. As the upgraded successor, the A421ABC 04 is a direct replacement for the A419ABC 3, though technicians should verify
