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OEM Carrier 2-Pole Contactor 24V Coil for C50A505011
Carrier

OEM Carrier 2-Pole Contactor 24V Coil for C50A505011

SKU: CARRIE-C50A505011-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 C50A505011

This OEM replacement contactor is the factory-specified part for the Carrier C50A505011 packaged unit. The contactor is a high-voltage relay controlled by the 24V signal from your thermostat or control board — when it receives the call for cooling, it closes the contacts and sends line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioning system that won't turn on, hums without starting, or trips the breaker repeatedly. Pitted or burned contacts also cause intermittent cooling and compressor damage over time.

  • Specs: 2-Pole configuration | 24V AC coil voltage | Replaces OEM part numbers HN53CB115, HN53CD115, and HN53HF122 | Factory-matched contact ratings for reliable high-voltage switching
  • OEM vs Generic: OEM contactors use factory-grade contact materials and coil windings matched to Carrier's exact pull-in voltage range. Generic contactors frequently use lower-grade contact alloys that pit faster, especially under hard-start load conditions common in packaged units.
  • Install difficulty: 2/5 — Disconnect all power at the breaker and verify zero voltage with a multimeter before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model C50A505011 packaged units. Verify your existing contactor's pole count and coil voltage on the data plate before ordering. Cross-references OEM part numbers HN53CB115, HN53CD115, and HN53HF122. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you order — contact us anytime.

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 C50A505011?
Yes. This is the factory-specified OEM contactor for the Carrier C50A505011. 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 C50A505011?
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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