OEM Carrier 2-Pole Contactor HN52TC040 for Model GZ072SXXCXXX1XX1

This is the factory-specified OEM replacement contactor for the Carrier GZ072SXXCXXX1XX1 packaged or split-system unit. The contactor is the high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the outdoor unit will not energize at all, or may run continuously without cycling off, leading to compressor damage if left unaddressed.

• Specs: 2-pole configuration | 24V AC coil voltage | 40-amp rated | Direct OEM replacement for part number HN52TC040 | Factory-matched contact material and coil pull-in voltage
• OEM vs Generic: OEM contactors use factory-grade silver-alloy contacts rated for thousands of switching cycles. Generic alternatives often use lower-grade contact materials that pit and arc prematurely, causing the very failure you're trying to prevent.
• Install Difficulty: 2/5 — Shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph existing wiring before disconnecting. Line voltage is present inside the unit even with the thermostat off — confirm power is off with a multimeter before touching any terminals.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our climate-controlled parts warehouse.

Compatibility: Engineered as a direct drop-in replacement for Carrier model GZ072SXXCXXX1XX1. Verify pole count, coil voltage, and amperage rating against your unit's data plate before ordering. If you need help confirming fitment, our HVAC parts specialists are available to verify compatibility before you buy — no guesswork required.