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OEM Carrier Contactor 2-Pole 24V Coil for C50A405053
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C50A405053

SKU: CARRIE-C50A405053-CONTACTOR-HN53HF122 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor for Model C50A405053 — HN53HF122 / HN53HG120

This OEM replacement contactor is the factory-specified part for the Carrier C50A405053 packaged unit. The contactor is a high-voltage relay that controls power delivery to the compressor and condenser fan motor. When the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the contacts and allowing line voltage to flow. A failed contactor typically results in an air conditioner that won't turn on at all, buzzes or chatters without starting, or runs continuously without cycling off due to welded contacts.

  • Specs: 2-pole configuration | 24V coil voltage | Line voltage rated for standard residential/light commercial applications | Replaces OEM part numbers HN53HF122 and HN53HG120
  • OEM vs Generic: This factory OEM contactor meets exact Carrier contact gap, coil pull-in voltage, and amp rating specifications. Generic contactors may use lower-grade contact material that pits and welds prematurely, causing nuisance callbacks and callbacks.
  • Install difficulty: 2/5 — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Line voltage terminals remain energized until the disconnect is fully open — treat with caution.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier C50A405053 commercial packaged unit. Cross-references OEM part numbers HN53HF122 and HN53HG120. Verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering to ensure proper fitment. Have questions about compatibility? Our HVAC parts specialists confirm fitment before you order — no guessing required.

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 C50A405053?
Yes. This is the factory-specified OEM contactor for the Carrier C50A405053. 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 C50A405053?
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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