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OEM Carrier 2-Pole 24V Coil Definite Purpose Contactor for C4850C50Z3050500 | National HVAC Parts
Carrier

OEM Carrier 2-Pole 24V Coil Definite Purpose Contactor for C4850C50Z3050500 | National HVAC Parts

SKU: CARRIE-C4850C50Z3050500-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C50Z3050500

This is the factory-specified OEM replacement contactor for the Carrier C4850C50Z3050500 packaged unit. The contactor is the high-voltage relay that responds to a 24V signal from the thermostat or control board and closes the circuit to deliver line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a welded contactor, or a failed coil — your system will either refuse to turn on entirely, run continuously without shutting off, or trip the breaker repeatedly. OEM part numbers covered by this listing: HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for C4850C50Z3050500 | HVAC-grade silver alloy contact surfaces for extended service life
  • OEM vs Generic: OEM Carrier contactors (HN53CB115 / HN53HF122 / HN53HG120) are wound and rated to exact factory tolerances. Generic contactors frequently use lower-grade contact alloys that pit faster under load cycling, increasing the risk of premature failure — especially in high-cycle southern climates.
  • Install difficulty: 3/5 — Always disconnect power at the disconnect box AND the breaker panel before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter. Photograph all wiring connections before removing the old contactor. Confirm coil voltage and pole count match your unit's data plate.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before our daily cutoff ship same business day from our climate-controlled warehouse.

Compatibility: Designed for the Carrier C4850C50Z3050500 packaged unit. Cross-references OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Always verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.

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 $99
  • 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 C4850C50Z3050500 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C50Z3050500 | 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 C4850C50Z3050500 | 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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