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OEM Carrier Contactor 2-Pole 30A 24V Coil for C4850C50ZX105110 | National HVAC Parts
Carrier

OEM Carrier Contactor 2-Pole 30A 24V Coil for C4850C50ZX105110 | National HVAC Parts

SKU: CARRIE-C4850C50ZX105110-CONTACTOR-HN53CB115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil 30A for Model C4850C50ZX105110

This OEM replacement contactor is the factory-specified part for the Carrier C4850C50ZX105110 packaged or split-system unit. The contactor acts as a high-voltage relay controlled by a low-voltage (24V) signal from the thermostat. When the thermostat calls for cooling, the contactor closes to send 240V power to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that simply won't turn on — the system may hum, chatter, or show no response at all when cooling is demanded. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole | 30A rated | 24V coil voltage | 240VAC load circuit | NEMA-style mounting | Direct OEM factory replacement
  • OEM vs Generic: This OEM contactor meets Carrier's exact coil pull-in voltage and contact material specifications. Generic contactors often use inferior silver-alloy contacts that pit and weld prematurely under high-cycle conditions, leading to repeat failures within a single season.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any terminals. Tools needed: 1/4" and 5/16" nut drivers, flat-head screwdriver, needle-nose pliers, multimeter. Photograph all wiring connections before removal to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed by 3 PM local time ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier C4850C50ZX105110. This part supersedes OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — all three numbers confirm fitment for this unit. Always verify pole count, amperage, and coil voltage against your unit's data plate before ordering. Our parts specialists are available to confirm fitment before you buy. In stock and ready to ship today — get your system back up and running fast.

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 C4850C50ZX105110 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50ZX105110 | National HVAC Parts. 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 C4850C50ZX105110 | National HVAC Parts?
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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