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OEM Carrier Contactor 2-Pole 24V Coil for CA13NA04800GACAA
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for CA13NA04800GACAA

SKU: CARRIE-CA13NA04800GACAA-CONTACTOR-HN51KC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model CA13NA04800GACAA

This is the factory-specified OEM contactor (part number HN51KC024) for the Carrier CA13NA04800GACAA split-system air conditioner. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to supply line voltage to both the compressor and condenser fan motor. When a contactor fails — whether due to pitted or burnt contacts, a stuck plunger, or a failed coil — the result is an AC system that hums, fails to start, or runs continuously without cycling off.

  • Specs: 2-pole configuration | 24V AC coil voltage | 40-amp contact rating | Direct OEM replacement for part number HN51KC024 | Factory-matched contact material for maximum service life
  • OEM vs Generic: OEM contactors use precision-matched contact alloys that resist pitting and arcing under repeated high-current switching. Generic contactors often use softer contact materials that degrade faster, especially in high-cycle-rate environments like variable-load residential systems.
  • Install difficulty: 2/5 — Always disconnect power at both the disconnect box and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting terminals. Verify coil voltage matches your control board output before installing.
  • Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed specifically for the Carrier CA13NA04800GACAA 4-ton single-stage split-system condenser. Always confirm coil voltage (24V) and pole configuration against your existing contactor's data label before ordering. If you're unsure of fitment, our technical team can verify compatibility before you purchase — no guesswork required.

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 CA13NA04800GACAA?
Yes. This is the factory-specified OEM contactor for the Carrier CA13NA04800GACAA. 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 CA13NA04800GACAA?
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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