ICP 2-Pole 30A Contactor for RGS120SRCB0AAA — 24V Coil OEM Contactor | Ships Today
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Overview
This OEM 2-pole, 30-amp contactor with a 24-volt control coil (PN 1178074) for the ICP/Tempstar/Heil RGS120SRCB0AAA system is the electromechanical switch that energizes the compressor and condenser fan when the thermostat calls for cooling. The 24V coil pulls the contacts closed to pass line voltage across both poles; when the call ends, the contacts open and the loads stop. Contactors are high-wear items — the silver contacts pit and burn from the inrush current of every start, and the coil can fail open. Worn contacts cause chattering, welded-closed sticking, or a unit that won't start. Replacing a tired contactor restores reliable, clean switching and protects the compressor from voltage drop and arcing damage.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite Purpose Contactor |
| Poles | 2-Pole |
| Contact Rating | 30 Amps |
| Coil Voltage | 24V |
| Brand | ICP / Tempstar / Heil |
| Fit | OEM Replacement |
Compatibility
Fits the ICP family RGS120SRCB0AAA and many ICP, Tempstar, Heil, and Comfortmaker condensing units calling for a 2-pole 30A contactor with a 24V coil. Match poles, amp rating, and coil voltage to your existing part.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the control panel cover to expose the contactor.
- Document — Photograph every wire and terminal position before disconnecting.
- Remove — Transfer wires one at a time or label them, then unscrew the old contactor from the panel.
- Install — Mount the new contactor, land each wire on the matching terminal per your photo, and confirm the 24V coil leads are correct.
- Test — Restore power, call for cooling, and verify the contacts pull in cleanly with no chatter.
Signs You Need a Replacement
- Buzzing or chattering at the contactor during operation
- Pitted, burned, or welded contacts
- Compressor and fan won't start on a cooling call
- Unit runs continuously because contacts are stuck closed
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days