ICP 2-Pole 30A Contactor for RGS120HEAB0AAA — 24V Coil | Ships Today

Overview

This OEM 2-pole 30-amp contactor with a 24V coil (part number 1178074) is the factory switching relay for the ICP / Tempstar / Heil RGS120HEAB0AAA. When the thermostat calls, the control board sends 24V to the contactor coil, pulling in the contacts that close the high-voltage line to energize the load. The contactor is one of the hardest-working parts in the system — every cycle pulls the contacts together under load, and over time they pit, burn, and weld. A failed contactor either won't pull in (no operation) or sticks closed (load runs continuously and won't shut off). Replacing it with the correct 2-pole 30A / 24V unit restores reliable, clean switching.

Specifications

Compatibility

Built for the ICP RGS120HEAB0AAA and a broad range of Tempstar, Heil and Comfortmaker units using a 2-pole 30A definite-purpose contactor with a 24V coil. Match poles, amperage, and coil voltage to your old part before ordering.

Installation Guide

1. Safety First — Disconnect power at the disconnect and verify zero voltage at the contactor with a multimeter.
2. Access — Remove the electrical compartment service panel.
3. Document — Photograph every line, load, and 24V coil wire before disconnecting.
4. Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from its base.
5. Install — Mount the new contactor and land each wire on the matching terminal per your photo.
6. Test — Restore power, call for operation, and confirm the contactor pulls in and the load energizes.

Signs You Need a Replacement

• System won't start even though the board calls for it (contacts not closing)
• Load runs constantly and won't shut off (welded contacts)
• Loud buzzing, humming, or chattering from the contactor
• Visible pitting, burning, or melted housing at the contacts

Shipping & Returns

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