OEM Carrier 1-Pole Contactor 24V 30A (HN51KC024) for Model PY4GNAB36090AA

This is the genuine OEM Carrier contactor for the PY4GNAB36090AA packaged unit. The contactor is the high-voltage relay that bridges line-voltage power to the compressor and condenser fan motor whenever the thermostat sends a 24V demand signal. When it fails, you'll typically notice the system completely refusing to start, audible chattering or humming from the control box, or — in worst-case pitted-contact failures — the unit running continuously even after the thermostat call ends. Replacing a worn contactor promptly protects the compressor from the voltage irregularities that cause premature failure.

• Specs: 1-Pole configuration | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz | OEM Part # HN51KC024
• OEM vs Generic: This Factory Authorized Part is engineered to meet exact Carrier specifications for contact gap, coil pull-in voltage, and silver-alloy contact material — ensuring reliable pull-in under all load conditions. Generic contactors frequently use lower-grade contact alloys that pit and weld faster under compressor start loads.
• Install difficulty: 2/5 — Always disconnect and lock out all power before starting. Photograph all wiring connections before removal. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 24V coil signal before condemning the contactor). Swap one wire at a time to avoid miswiring. Verify contactor pulls in cleanly on a 24V thermostat call after installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier model PY4GNAB36090AA. Also cross-references part numbers HN51CC024, P282-0311, P282-1304, P282-1305, 301362-101, and 301323-101. Always verify the part number against your unit's wiring diagram or data plate before ordering. Not sure it fits? Contact our team — we verify fitment before you buy.