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OEM Carrier 40A Contactor 2-Pole 24V Coil HN51KC024 — CH13NA04200GACBA
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil HN51KC024 — CH13NA04200GACBA

SKU: CARRIE-CH13NA04200GACBA-CONTACTOR-HN51KC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil HN51KC024 for Model CH13NA04200GACBA

This is the factory OEM replacement contactor (part number HN51KC024) for the Carrier CH13NA04200GACBA split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes to send 240V power to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the outdoor unit will not energize at all, or it may run continuously without shutting off. Replacing a worn contactor is one of the most common and cost-effective AC repairs.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30–40A rated contacts | Replaces OEM part number HN51KC024 | Direct plug-and-play wiring terminals
  • OEM vs Generic: This OEM contactor is manufactured to Carrier's exact coil pull-in voltage and contact gap specifications. Generic contactors may use lower-grade contact alloys that pit and burn faster, particularly under high-cycle summer conditions — shortening service intervals and risking compressor damage.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box and confirm voltage is zero with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor.
  • Warranty: Backed by a 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as the direct OEM replacement for Carrier model CH13NA04200GACBA split-system condensers. Always verify coil voltage and pole configuration against your unit's wiring diagram and data plate before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions. Order today and receive same-day shipping on all in-stock 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 $75
  • 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 OEM Carrier 40A Contactor 2-Pole 24V Coil HN51KC024 — CH13NA04200GACBA?
Yes. This is the factory-specified OEM contactor for the Carrier OEM Carrier 40A Contactor 2-Pole 24V Coil HN51KC024 — CH13NA04200GACBA. 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 OEM Carrier 40A Contactor 2-Pole 24V Coil HN51KC024 — CH13NA04200GACBA?
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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