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This OEM 2-pole, 30-amp definite-purpose contactor (part 1178074) with a 24-volt coil is the switching relay that energizes the high-voltage loads in the ICP / Tempstar / Heil RGS101LRBB0AAAA system. When the thermostat calls, the 24V control circuit pulls in the contactor coil, closing both poles and sending line voltage to the compressor and condenser fan motor. Contactors are a high-wear component: their contacts arc every time they open and close, and over years of cycling they pit, weld, or burn. A failed contactor is one of the most common no-cool service calls — symptoms include a humming or chattering contactor, contacts stuck closed (unit runs constantly), or contacts that won't pull in at all.
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite-Purpose Contactor |
| Brand | ICP (Tempstar / Heil / Comfortmaker) |
| Poles | 2-Pole |
| Contact Rating | 30 Amps |
| Coil Voltage | 24 VAC |
| Fits Model | RGS101LRBB0AAAA |
| Fitment | OEM direct replacement |
Direct OEM replacement contactor for the ICP-built RGS101LRBB0AAAA and its Tempstar, Heil, and Comfortmaker variants. The 2-pole / 30A / 24V coil specification also serves as a common service replacement across many residential condensing units with matching ratings — always confirm pole count, amp rating, and coil voltage against your old part.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.