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This OEM 2-pole definite purpose contactor (part numbers 1178074 and 1178211) is the switching relay that energizes the compressor and condenser fan in your ICP / Tempstar / Heil RGS091HFBB0AAAA furnace and matched cooling system. When the 24-volt control signal from the thermostat hits the coil, the magnetic core pulls the contacts closed and routes line voltage to the load. Rated at 30 amps (1178074) and 40 amps (1178211) across 2 poles with a 24V coil, it handles the inrush of a starting compressor without welding. Failure shows up as a system that hums but won't start, pitted or burned contacts, a buzzing or chattering coil, or a compressor that fails to engage on a call for cooling.
| Spec | Value |
|---|---|
| Part Number | 1178074 (30A), 1178211 (40A) |
| Type | Definite Purpose Contactor |
| Brand | ICP (Tempstar / Heil) |
| Poles | 2-Pole |
| Contact Rating | 30A / 40A |
| Coil Voltage | 24V |
| Fits Model | RGS091HFBB0AAAA |
Engineered for the ICP / Tempstar / Heil RGS091HFBB0AAAA and other matched ICP-family condensing units and furnaces that call for a 2-pole, 24V-coil contactor. Confirm pole count, amp rating, and coil voltage against the contactor currently installed before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.