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This OEM 2-pole definite purpose contactor (OEM #1178074) is the primary switching relay for the ICP/Tempstar/Heil RGS102SECB0AAA. Rated for 30 amps with a 24V coil, it energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 24V control signal hits the coil, the magnetic field pulls the contacts closed and sends line voltage to the load. Over time the silver contacts pit, weld, or burn from arcing, and the coil can fail open. Common failure symptoms include a system that won't start, chattering or buzzing at the contactor, contacts that stick closed (unit runs constantly), or visible pitting and scorch marks on the terminals. Replacing a worn contactor restores reliable, clean switching and protects the compressor from low-voltage chatter.
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite Purpose Contactor |
| Brand | ICP / Tempstar / Heil |
| Poles | 2-Pole |
| Amp Rating | 30A |
| Coil Voltage | 24V |
| Fit | OEM Replacement |
Engineered as a direct OEM replacement for the ICP/Tempstar/Heil RGS102SECB0AAA and family units that specify part number 1178074. Always confirm the original coil voltage (24V) and amp rating (30A) before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.