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OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA04800GACBA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA04800GACBA

SKU: CARRIE-CH13NA04800GACBA-CONTACTOR-HN51KC024 Brand: Carrier
✓ Guaranteed to fit CH13NA04800GACBA — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model CH13NA04800GACBA

This is the factory OEM replacement contactor (part# HN51KC024) for the Carrier CH13NA04800GACBA split-system air conditioner. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to power the compressor and condenser fan motor. When the contactor fails — due to burned or pitted contacts, a stuck plunger, or a failed coil — the outdoor unit will not energize at all, or may run continuously without cycling off.

  • Specs: 2-pole configuration | 24V AC coil | 30–40A contact rating | Replaces OEM part number HN51KC024 | Factory-matched contact material for full rated ampacity
  • OEM vs Generic: This OEM contactor uses factory-spec silver-alloy contacts rated for the exact load profile of the CH13NA04800GACBA compressor circuit. Generic contactors often use lower-grade contact materials that pit and weld prematurely, leading to callbacks and compressor damage.
  • Install difficulty: 2/5 — Disconnect power at the disconnect box and confirm zero voltage with a multimeter before proceeding. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Photograph all wiring before removing any terminals. Swap one wire at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed and factory-specified for the Carrier CH13NA04800GACBA 4-ton single-stage split-system condenser. Verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase. Order today and your part ships the same business day.

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 CH13NA04800GACBA?
Yes. This is the factory-specified OEM contactor for the Carrier CH13NA04800GACBA. 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 CH13NA04800GACBA?
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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