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This OEM 2-pole definite purpose contactor is the switching relay that energizes the compressor and condenser fan in the ICP / Heil / Tempstar RGS091HDBA0AAAA system. Available as a 30-amp (part 1178074) or 40-amp (part 1178211) unit, the contactor uses a 24-volt control coil to pull in line-voltage contacts whenever the thermostat calls for cooling. Over time, the contacts pit, arc, and weld together, while the coil can burn out — leading to a system that won't start, won't shut off, or chatters loudly. Replacing a worn contactor restores reliable, clean switching and protects the compressor from damaging electrical faults.
| Spec | Value |
|---|---|
| Part Numbers | 1178074 (30A), 1178211 (40A) |
| Type | Definite Purpose Contactor, 2-Pole |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Coil Voltage | 24V |
| Contact Rating | 30A / 40A |
| Poles | 2 |
| Compatible Model | RGS091HDBA0AAAA |
Direct OEM replacement for the ICP / Heil / Tempstar RGS091HDBA0AAAA and related models using a 24V 2-pole contactor. Match your amperage rating (30A or 40A) to the original part to ensure correct sizing.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.