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OEM Carrier Single-Pole Contactor 24V 25A for PY3GNA030060AA
Carrier

OEM Carrier Single-Pole Contactor 24V 25A for PY3GNA030060AA

SKU: CARRIE-PY3GNA030060AA-CONTACTOR-HN51KB024 Brand: Carrier
✓ Guaranteed to fit PY3GNA030060AA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Single-Pole Contactor 24V 25A — Model PY3GNA030060AA (HN51KB024)

This OEM single-pole contactor is the factory-specified switching component for the Carrier PY3GNA030060AA condensing unit. The contactor acts as a high-voltage relay: when the thermostat sends a 24V signal, the contactor coil energizes, closing the high-voltage circuit to power the compressor and/or condenser fan motor. When the contactor fails — through pitted or welded contacts, a burned coil, or a chattering coil — the result is an AC system that won't start, runs continuously without shutting off, or trips the breaker repeatedly.

  • Specs: 1-Pole configuration | 24V AC 50/60Hz coil | 25 FLA (Full Load Amps) | OEM part number HN51KB024 | Factory-matched contact material and coil resistance
  • OEM vs Generic: OEM contactors use factory-spec silver-alloy contact tips and precision-wound coils, delivering consistent pull-in voltage and long contact life. Generic contactors often use lower-grade contact material that pits faster under high inrush current, leading to premature failure and compressor damage.
  • Install difficulty: 2/5 — Always disconnect and lock out 240V power at the disconnect box before opening the unit. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify the 24V coil pulls in cleanly after installation with a voltmeter before closing the panel.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse — order before 3PM local time for guaranteed today dispatch.

Compatibility: Engineered and factory-matched for Carrier model PY3GNA030060AA. Always verify the OEM part number on your existing contactor's label or the unit's wiring diagram before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — contact us before placing your order.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $99
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier PY3GNA030060AA?
Yes. This is the factory-specified OEM contactor for the Carrier PY3GNA030060AA. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the contactor on my Carrier PY3GNA030060AA?
Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.
My AC clicks but the compressor won’t turn on. What’s wrong?
Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.
Is this contactor compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier contactor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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