OEM Carrier 1-Pole Contactor 24V 25A (HN51KB024) for Model PY1PNA030060ADBA

This is the factory OEM replacement contactor for the Carrier PY1PNA030060ADBA condensing unit. The contactor is the high-voltage switching relay that receives a 24-volt signal from your thermostat and closes the circuit to power the compressor and/or condenser fan motor. When the contactor fails — due to pitted or welded contacts, a burned coil, or worn contact surfaces — the system will either refuse to start, stay locked on continuously, or trip the breaker. Replacing a failed contactor is one of the most common and cost-effective AC repairs available.

• Specs: 1-Pole | 24V AC Coil (50/60 Hz) | 25 FLA (Full Load Amps) | Definite Purpose Contactor | OEM Part # HN51KB024
• OEM vs Generic: OEM contactors use factory-spec contact alloys and coil windings calibrated for your unit's exact pull-in voltage. Generic contactors often use lower-grade contact materials that pit and weld faster, especially under high-cycle summer loads.
• Install difficulty: 2/5 — Disconnect and lock out 240V power at the disconnect box before opening the unit. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph all wiring before removing the old contactor — coil lead orientation matters.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.

Compatibility: Designed for Carrier model PY1PNA030060ADBA. Verify your unit's existing contactor pole count, coil voltage, and amperage rating on the data plate or wiring diagram before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — no guesswork required.