OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48ZN055500

This OEM replacement contactor is the factory-specified part for the Carrier C4850C48ZN055500 packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat. When you call for cooling, the control board energizes the contactor coil, closing the high-voltage contacts that power the compressor and condenser fan motor. A failed contactor is one of the most common causes of an AC that simply won't turn on — symptoms include the thermostat calling for cooling with no response from the outdoor unit, a buzzing or chattering noise at the contactor, or burned/pitted contact points visible upon inspection.

• Specs: 2-pole configuration | 24V AC coil voltage | High-amperage contacts rated for compressor load | Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120
• OEM vs Generic: OEM contactors use silver-alloy contact points engineered to factory arc-resistance specifications. Generic contactors often use lower-grade contacts that pit and weld faster under compressor inrush current, leading to premature failure and potential compressor damage.
• Install difficulty: 2/5 — Always disconnect power at the disconnect box and verify voltage is zero before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor — line, load, and coil terminals must be reconnected correctly.
• Warranty: 1-year OEM factory warranty. In-stock units ship the same business day from our climate-controlled warehouse.

Compatibility: Designed specifically for the Carrier C4850C48ZN055500 packaged unit. This listing covers three valid OEM part numbers — HN53CB115, HN53HF122, and HN53HG120 — all of which are factory-authorized replacements for this application. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our parts specialists are available to confirm fitment prior to purchase.