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OEM Carrier 2-Pole Contactor 24V Coil for C50A305051
Carrier

OEM Carrier 2-Pole Contactor 24V Coil for C50A305051

SKU: CARRIE-C50A305051-CONTACTOR-HN53CB115 Brand: Carrier
✓ Guaranteed to fit C50A305051 — 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 C50A305051

This OEM replacement contactor is the factory-specified high-voltage switching relay for the Carrier C50A305051 packaged unit. The contactor acts as the primary on/off switch between your thermostat's 24V control signal and the high-voltage compressor and condenser fan circuits. When the contactor fails, you'll experience an air conditioner that simply won't turn on, fails to cycle on demand, or shows signs of pitted and burned contact points causing intermittent operation or hard starts. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V coil voltage | Heavy-duty contact rating | Direct OEM replacement — matches factory wiring terminals and mounting footprint exactly
  • OEM vs Generic: This OEM contactor is manufactured to Carrier's exact coil pull-in voltage and contact silver-alloy specifications. Generic contactors frequently use inferior contact materials that pit and weld prematurely under load, leading to repeat failures within a single season.
  • Install difficulty: 2/5 — Disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed for the Carrier C50A305051 commercial packaged unit. This listing covers three superseded OEM part numbers — HN53CB115, HN53HF122, and HN53HG120 — all of which are direct replacements for one another. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase.

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 C50A305051?
Yes. This is the factory-specified OEM contactor for the Carrier C50A305051. 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 C50A305051?
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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