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OEM Carrier Contactor 1-Pole 24V 25A HN51KB024 for PY3GNA042060NA
Carrier

OEM Carrier Contactor 1-Pole 24V 25A HN51KB024 for PY3GNA042060NA

SKU: CARRIE-PY3GNA042060NA-CONTACTOR-HN51KB024 Brand: Carrier
✓ Guaranteed to fit PY3GNA042060NA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 1-Pole Contactor 24V 25A — HN51KB024 for Model PY3GNA042060NA

This is the factory OEM replacement contactor for the Carrier PY3GNA042060NA packaged HVAC unit. The contactor is the high-voltage relay that closes the circuit to your compressor and/or fan motor every time your thermostat calls for cooling. When the contactor fails — whether from burned or pitted contacts, a welded coil, or a failed coil winding — the result is an unresponsive system: the unit hums but never starts, or doesn't respond at all. Replacing a worn contactor is one of the most common and cost-effective HVAC repairs available.

  • Specs: 1-Pole | 24V 50/60Hz coil | 25 FLA (Full Load Amps) | OEM part number HN51KB024 | Factory-matched fit and electrical rating
  • OEM vs Generic: This is a genuine Carrier OEM contactor — not an aftermarket substitute. OEM contactors meet exact factory coil pull-in voltage and contact load ratings. Generic contactors may carry ±10–15% tolerance variances, increasing risk of premature contact welding or coil dropout under load.
  • Install Difficulty: 2/5 — Shut off power at the disconnect and confirm zero voltage with a meter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cut-off.

Compatibility: Engineered for Carrier model PY3GNA042060NA. Verify the part number on your unit's wiring diagram or data plate before ordering. Our fitment team is available to confirm compatibility before you purchase — don't guess on a high-voltage component. Order now and get same-day shipping on all in-stock OEM parts.

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 PY3GNA042060NA?
Yes. This is the factory-specified OEM contactor for the Carrier PY3GNA042060NA. 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 PY3GNA042060NA?
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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