OEM Carrier Contactor 2-Pole 24V Coil for Model PY3GNA036060AB

The Carrier HN51KB024 is the factory-specified OEM replacement contactor for the PY3GNA036060AB split-system condenser. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send line-voltage power to the compressor and condenser fan motor. When it fails, your air conditioner may not turn on at all, may run continuously without shutting off, or you may hear a chattering or buzzing noise from the outdoor unit — all classic signs of a worn or pitted contactor.

• Specs: 2-Pole contactor | 24V AC coil voltage | Factory-matched amp rating | Direct OEM replacement for Carrier part number HN51KB024
• OEM vs Generic: This OEM contactor uses factory-grade silver-alloy contact tips that resist pitting and arcing far longer than generic alternatives. Off-brand contactors often use cheaper alloys that degrade rapidly under summer load, leading to repeat failures within a single season.
• Install difficulty: 2/5 — Always shut off power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Swap wires one at a time to avoid miswiring.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct drop-in replacement for Carrier model PY3GNA036060AB. Always verify the coil voltage and pole configuration on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you order — contact us anytime.