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OEM Carrier Contactor 2-Pole 24V Coil for C50A203512
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C50A203512

SKU: CARRIE-C50A203512-CONTACTOR-HN53CB115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C50A203512

This OEM contactor is the factory-specified replacement for the Carrier C50A203512 commercial packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the control board and closes to deliver line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the result is typically an AC system that won't energize at all, intermittently drops out under load, or runs continuously without cycling off.

  • Specs: 2-pole configuration | 24V AC coil voltage | Heavy-duty contact rating | Factory-matched to Carrier OEM part numbers HN53CB115 and HN53CD115
  • OEM vs Generic: OEM contactors use factory-grade silver-alloy contact tips rated for the exact amperage demands of your unit. Generic alternatives frequently use lower-grade contact materials that pit and weld prematurely, leading to repeat failures and potential compressor damage.
  • Install difficulty: 3/5 — Always shut off power at the disconnect and verify zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting to ensure correct reassembly.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier C50A203512 packaged unit. Cross-references OEM part numbers HN53CB115 and HN53CD115. Verify coil voltage and pole configuration against your unit's wiring diagram and data plate before ordering. Our fitment team is available to confirm compatibility before you purchase — don't hesitate to reach out. Order today and your part ships the same business day.

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 C50A203512?
Yes. This is the factory-specified OEM contactor for the Carrier C50A203512. 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 C50A203512?
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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