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OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C48A404051 — Ships Today
Carrier

OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C48A404051 — Ships Today

SKU: CARRIE-C48A404051-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier 2-Pole Contactor 24V Coil 30A for Model C48A404051

This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C48A404051 packaged unit. The contactor acts as the main electrical switch that allows the thermostat's low-voltage (24V) signal to energize the compressor and condenser fan motor at high voltage. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the system will either fail to start entirely, run continuously without shutting off, or short-cycle unpredictably. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30A rating | Factory-matched contact material for reduced arcing and extended service life
  • OEM vs Generic: OEM contactors use factory-grade contact alloys and coil windings rated for the exact load profile of the C48A404051. Generic contactors may use lower-grade contact material that pits faster under repeated load cycling, reducing service life by 30–50%.
  • Install difficulty: 3/5 — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wire connections before removal and transfer wires one at a time to avoid miswiring.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier C48A404051 packaged unit. This listing covers three interchangeable OEM part numbers — HN53CB115, HN53HF122, and HN53HG120 — all factory-approved replacements for this application. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy.

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 C48A404051 — Ships Today?
Yes. This is the factory-specified OEM contactor for the Carrier C48A404051 — Ships Today. 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 C48A404051 — Ships Today?
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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