ICP 2-Pole 30A Contactor for RGS120LDBB0AAA — 24V Coil | Ships Today

Overview

This OEM 2-pole 30-amp contactor (part 1178074) with a 24-volt coil is the electromechanical switch that energizes the high-voltage loads in the ICP Tempstar Heil RGS120LDBB0AAA system. When the thermostat or control board sends a 24V signal, the coil pulls the contacts closed, sending line voltage to the compressor or motor; when the call ends, the contacts open. Contactors are high-wear components — the contacts pit, burn, and weld over time from the inrush current of every start. A failing contactor causes hard starts, chattering, no-cool/no-heat calls, or contacts that stick closed and run the equipment continuously.

Specifications

Compatibility

Designed for the ICP / Tempstar / Heil / Comfortmaker RGS120LDBB0AAA and other systems calling for a 2-pole, 30A, 24V coil contactor. Confirm amperage, pole count, and coil voltage match your original before ordering.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
2. Access — Remove the electrical/control panel cover.
3. Document — Photograph every wire and terminal position before disconnecting.
4. Remove — Label and remove the line, load, and 24V coil wires, then unscrew the old contactor.
5. Install — Mount the new contactor and reconnect each wire exactly per your photos.
6. Test — Restore power, trigger a call, and confirm the contactor pulls in cleanly and the load energizes.

Signs You Need a Replacement

• Buzzing or chattering when the contactor tries to pull in.
• Pitted, burned, or welded contacts.
• Equipment runs continuously because contacts stuck closed.
• No-heat / no-cool calls with 24V present at the coil.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. National HVAC Parts fitment guarantee.