ICP 2-Pole Contactor 30A/40A 24V for RGS150HSCA0AAAA — OEM 1178074 1178211 | Ships Today

Overview

This genuine OEM 2-pole definite purpose contactor for the ICP / Heil / Tempstar RGS150HSCA0AAAA is available in 30 amp (part 1178074) and 40 amp (part 1178211) ratings, both with a 24-volt control coil. The contactor is the electrically operated switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. The 24V coil pulls the two poles closed to pass line voltage to the load. Contactors wear out from millions of switching cycles, arcing, and pitting — burned or welded contacts cause a unit that won't start, won't shut off, or chatters. Installing a fresh OEM contactor restores reliable, clean switching.

Specifications

Compatibility

Fits the ICP RGS150HSCA0AAAA and related Heil, Tempstar, and Comfortmaker units. Match the amp rating (30A vs 40A) to your failed contactor; both share the 24V coil and 2-pole configuration.

Installation Guide

1. Safety First — Disconnect power at the disconnect and verify zero voltage across all terminals with a multimeter.
2. Access — Remove the electrical/control panel cover.
3. Document — Photograph every line, load, and 24V coil wire before disconnecting.
4. Remove — Transfer wires one at a time, then unbolt the old contactor from the bracket.
5. Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
6. Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

• Unit won't start or condenser fan and compressor stay off on a cooling call
• Loud buzzing, humming, or chattering from the contactor
• Burned, pitted, or welded contacts that won't open
• Compressor runs continuously and won't shut off

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.