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OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C48A303551 | National HVAC Parts
Carrier

OEM Carrier 2-Pole 30A 24V Coil Definite Purpose Contactor for C48A303551 | National HVAC Parts

SKU: CARRIE-C48A303551-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 C48A303551

This OEM replacement contactor is the factory-specified high-voltage relay for the Carrier C48A303551 packaged unit. The contactor acts as the main power switch between your electrical supply and the compressor and condenser fan motor. When the thermostat calls for cooling, the 24V control circuit energizes the contactor coil, closing the high-voltage contacts to start the system. A failed contactor typically causes the outdoor unit to remain completely unresponsive, or causes erratic cycling, chattering, or burned contacts that prevent the compressor from starting. OEM part numbers covered by this listing include HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V AC coil voltage | 30A contact rating | Factory-matched contact material and coil winding for exact fit and function
  • OEM vs Generic: OEM Carrier contactors use precision-stamped silver-alloy contacts rated to exact factory specifications. Generic contactors often use lower-grade contact materials that arc and pit prematurely, leading to premature failure and potential compressor damage.
  • Install Difficulty: 3/5 — Always disconnect power at the disconnect box and verify voltage is absent with a multimeter before beginning work. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal to ensure correct reassembly.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed and factory-matched for the Carrier C48A303551 packaged unit. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120. Verify pole count, coil voltage, and amperage rating on your unit's data plate before ordering to ensure correct fitment. Have questions? Our HVAC parts specialists confirm fitment before you buy — contact us today and get your system back up and running fast. In stock and ships today.

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 C48A303551 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C48A303551 | 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 C48A303551 | 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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