OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48AY05111

This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C4850C48AY05111 packaged unit. The contactor acts as the primary switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. A failed contactor is one of the most common causes of an AC system that won't turn on — symptoms include a humming sound with no compressor start, pitted or fused contact points, or a system that runs continuously without cycling off. OEM part numbers HN53CB115 and HN53HF122 are the factory-authorized replacements for this unit.

• Specs: 2-Pole design | 24V coil voltage | Rated for high-amperage compressor loads | Direct factory-matched replacement for Carrier C4850C48AY05111 — verify amperage on unit data plate before ordering
• OEM vs Generic: OEM contactors use silver-alloy contact points rated to factory amperage specifications, reducing arcing and extending service life. Generic contactors often use lower-grade contacts that pit faster, especially under the high-inrush loads of scroll compressors common in this unit class.
• Install Difficulty: 2/5 — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Always photograph existing wiring before removing the old contactor to ensure correct terminal reassignment.
• Warranty: 1-year OEM factory warranty against defects. Orders placed by 3 PM local time ship same business day from our climate-controlled warehouse.

Compatibility: Engineered for the Carrier C4850C48AY05111 packaged unit. Cross-references OEM part numbers HN53CB115 and HN53HF122. Always confirm coil voltage and pole configuration against your unit's wiring diagram or data plate before installation. Our fitment team is available to verify compatibility before you order — no guesswork required.