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The OEM 1178074 is a 2-pole, 30-amp definite purpose contactor with a 24-volt coil for the ICP/Heil/Tempstar RHS048H0BB0AAAA. It is the high-voltage relay that switches line power to the compressor and condenser fan whenever the thermostat sends a 24V signal to the coil. Contactor failure is one of the most common no-cool service calls: pitted or welded contacts, a chattering coil, or contacts that won't pull in all leave the outdoor unit dead or buzzing. The 30A rating and 24V coil make this a direct OEM-spec replacement.
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite Purpose Contactor |
| Poles | 2-Pole |
| Contact Rating | 30 Amps |
| Coil Voltage | 24V |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Fitment | OEM Direct Replacement |
Direct OEM fit for the RHS048H0BB0AAAA and other ICP-family condensing/packaged units calling for a 2-pole 30A contactor with a 24V coil. Confirm pole count, amp rating, and coil voltage match your old contactor.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.