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OEM Carrier 2-Pole Contactor 24V Coil for C50A406051
Carrier

OEM Carrier 2-Pole Contactor 24V Coil for C50A406051

SKU: CARRIE-C50A406051-CONTACTOR-HN53CB115 Brand: Carrier
✓ Guaranteed to fit C50A406051 — 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 C50A406051

This OEM contactor is the factory-specified high-voltage relay for the Carrier C50A406051 packaged unit. The contactor acts as the primary switching device that energizes the compressor and condenser fan motor when the thermostat signals a call for cooling. A failed contactor is one of the most common causes of a non-responsive air conditioning system — symptoms include an AC unit that hums but won't start, fails to respond to the thermostat at all, or suffers burned or pitted contact points visible during inspection. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V control coil | Factory-matched amperage rating | Direct OEM replacement — no modifications required
  • OEM vs Generic: OEM contactors use silver-alloy contact points rated for the exact load cycles of your Carrier unit. Generic contactors frequently use inferior contact materials that pit and weld prematurely, leading to repeat failures within one to two seasons.
  • Install Difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before beginning work. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, multimeter, needle-nose pliers. Photograph all wiring before removing the old contactor to ensure correct reconnection.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our climate-controlled warehouse.

Compatibility: Designed for the Carrier C50A406051 commercial packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Verify pole count, amperage, and coil voltage against your unit's wiring diagram and data plate before ordering. Our parts specialists are available to confirm fitment — just reach out before you buy.

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 C50A406051?
Yes. This is the factory-specified OEM contactor for the Carrier C50A406051. 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 C50A406051?
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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