ICP 2-Pole 30A 24V Contactor for RGS300LDAA0AAAA — OEM Part 1171554 | Ships Today

Overview

This genuine OEM 2-pole, 30-amp contactor (part number 1171554) with a 24-volt coil is the electrically operated switch that energizes high-voltage loads in the ICP / Heil / Tempstar RGS300LDAA0AAAA system. When the thermostat calls, the 24V coil pulls the contacts closed and sends line power to the load; when the call ends, the contacts open. Over thousands of cycles the contacts pit, arc, and burn, leading to chattering, welded contacts that won't shut off, or a unit that won't start at all. Installing a fresh OEM contactor restores clean, reliable switching and prevents the heat-related failures that follow worn contacts.

Specifications

Compatibility

Direct-fit replacement for the ICP/Heil/Tempstar RGS300LDAA0AAAA and shared platform units calling for OEM part 1171554. Verify pole count (2), amp rating (30A), and a 24V coil match your existing contactor before installing.

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 service panel to expose the contactor and wiring.
3. Document — Photograph every line, load, and 24V coil wire before disconnecting.
4. Remove — Transfer wires one at a time, then unscrew the old contactor from its mounting plate.
5. Install — Mount the new 2-pole contactor and reconnect each wire to the matching terminal per your photo.
6. Test — Restore power, call for operation, and confirm the contacts pull in cleanly with no chatter.

Signs You Need a Replacement

• Loud buzzing or chattering when the contactor energizes.
• Pitted, blackened, or welded contacts that won't open or close.
• Unit won't start, or won't shut off after the call ends.
• Ants or debris fouling the contacts and blocking the plunger.

Shipping & Returns

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