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OEM Carrier 410A Contactor 2-Pole 24V for CA13NA04800GACBA — HN51KC024
Carrier

OEM Carrier 410A Contactor 2-Pole 24V for CA13NA04800GACBA — HN51KC024

SKU: CARRIE-CA13NA04800GACBA-CONTACTOR-HN51KC024 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V for Model CA13NA04800GACBA (HN51KC024)

This is the factory OEM replacement contactor for the Carrier CA13NA04800GACBA split-system air conditioner condenser. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat — when the thermostat calls for cooling, the contactor closes and sends line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an AC condenser won't start, hums without running, or stays locked on even after the thermostat is satisfied. Common symptoms include a buzzing noise at the unit, intermittent operation, or a completely unresponsive outdoor unit.

  • Specs: 2-pole design | 24V AC coil voltage | 30-amp rated contacts | Fits standard contactor footprint — verify against your existing unit's data plate
  • OEM vs Generic: OEM part HN51KC024 is factory-spec'd for exact coil pull-in voltage and contact arc resistance, ensuring reliable switching and longer service life. Aftermarket contactors often use lower-grade silver-alloy contacts that pit and burn faster under compressor load.
  • Install Difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removal. This is a straightforward swap for most experienced DIYers or technicians.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders ship same business day from our stocked warehouse.

Compatibility: Designed for the Carrier CA13NA04800GACBA 4-ton R-410A split-system condenser. Always confirm coil voltage and pole configuration on your unit's data plate before ordering. Our team is available to verify fitment — reach out before you buy if you have any questions. In stock and ready to ship today.

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 CA13NA04800GACBA — HN51KC024?
Yes. This is the factory-specified OEM contactor for the Carrier CA13NA04800GACBA — HN51KC024. 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 CA13NA04800GACBA — HN51KC024?
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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