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OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C50ZZ075110 | National HVAC Parts
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for C4850C50ZZ075110 | National HVAC Parts

SKU: CARRIE-C4850C50ZZ075110-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 C4850C50ZZ075110

This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C4850C50ZZ075110 packaged unit. The contactor acts as the primary electrical switch that connects line voltage to the compressor and condenser fan motor whenever the thermostat sends a 24V call for cooling. When the contactor fails — whether from pitted contacts, a burned coil, or a stuck plunger — the unit will either refuse to start entirely, run continuously without cycling off, or trip the breaker under load. Replacing it is one of the most cost-effective repairs in HVAC service.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30–40A contact rating | Compatible OEM part numbers: HN53CB115, HN53HF122, HN53HG120 | Heavy-duty silver-alloy contact tips for extended service life
  • OEM vs Generic: OEM contactors use factory-matched coil resistance and contact gap tolerances, ensuring reliable pull-in voltage and arc suppression under full compressor load. Generic contactors can exhibit premature contact pitting and coil burnout, especially in high-cycle Southern climates.
  • Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter to verify de-energized. Always photograph all wire connections before removal. Reuse existing wiring in the same terminal positions.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our stocked warehouse.

Compatibility: Designed for the Carrier C4850C50ZZ075110 packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Our fitment team is available to confirm compatibility — order with confidence and receive fast, same-day shipping.

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 C4850C50ZZ075110 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50ZZ075110 | 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 C4850C50ZZ075110 | 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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