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This OEM set covers the 2-pole, 24V-coil definite-purpose contactors used in the ICP / Tempstar / Heil RGS150SEAB0AGAA condensing unit: a 30-amp contactor (Part No. 1178074) and a 40-amp contactor (Part No. 1178211). A contactor is the electrically operated switch that powers the compressor and condenser fan motor. When the thermostat calls for cooling, 24 volts energize the contactor coil, pulling the contacts closed to send line voltage to the compressor and fan; when the call ends, the coil de-energizes and the contacts spring open. Contacts pit, burn, and weld over thousands of cycles. Failure symptoms include a unit that won't start, a compressor that hums but won't run, contacts welded closed (the unit runs constantly), chattering at the contactor, or visible arcing and burnt terminals.
| Spec | Value |
|---|---|
| 30A Part Number | 1178074 |
| 40A Part Number | 1178211 |
| Poles | 2-Pole (DP) |
| Coil Voltage | 24 VAC |
| Contact Rating | 30A / 40A |
| Brand | ICP / Tempstar / Heil |
| Fit | OEM Replacement |
Direct-fit OEM contactors for the ICP-built RGS150SEAB0AGAA and shared Tempstar / Heil / Comfortmaker outdoor units. Choose the amperage (30A 1178074 or 40A 1178211) that matches the contactor currently installed in your unit, and confirm a 24V coil before ordering.
Ships same day on orders placed before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.