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OEM Carrier 50A Contactor 2-Pole 24V Coil for C4850C48AY03511
Carrier

OEM Carrier 50A Contactor 2-Pole 24V Coil for C4850C48AY03511

SKU: CARRIE-C4850C48AY03511-CONTACTOR-HN53CB115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor HN53CB115 for Model C4850C48AY03511

This is the factory-specified OEM replacement contactor (part number HN53CB115) for the Carrier C4850C48AY03511 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat or control board to close its contacts and supply line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the system will fail to energize, run intermittently, or remain stuck in the ON position even after the thermostat calls end.

  • Specs: 2-pole configuration | 24V AC coil voltage | 40–50A contact rating | Factory-matched OEM dimensions and terminal layout for direct swap-in
  • OEM vs Generic: OEM contactors like this HN53CB115 are manufactured to exact Carrier specifications, ensuring proper coil pull-in voltage, contact gap, and silver-alloy contact material. Generic substitutes often use lower-grade contacts that pit and weld faster under load, leading to repeat failures and potential compressor damage.
  • Install difficulty: 2/5 — Disconnect all power at the breaker and verify zero voltage with a multimeter before proceeding. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, non-contact voltage tester. Photograph all wire connections before removal.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier C4850C48AY03511 packaged unit. Always confirm OEM part number HN53CB115 against your unit's wiring diagram or data plate before ordering. Not sure about fitment? Our HVAC parts specialists verify compatibility before every order — contact us and we'll confirm your part.

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 C4850C48AY03511?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C48AY03511. 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 C4850C48AY03511?
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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