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OEM Carrier Contactor 2-Pole 24V Coil for C48A405051 — Ships Today
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C48A405051 — Ships Today

SKU: CARRIE-C48A405051-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier 2-Pole Contactor 24V Coil for Model C48A405051

This OEM contactor is the factory-specified high-voltage relay for the Carrier C48A405051 packaged unit. The contactor acts as the primary power switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. When it fails — whether due to burned or pitted contacts, a stuck plunger, or a failed coil — the result is an AC system that simply won't respond, leaving you with warm air or no operation at all. Replaces OEM part numbers HN53CB115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier C48A405051 packaged unit | Silver-alloy contact tips for long service life and reduced arcing
  • OEM vs Generic: This OEM contactor is manufactured to exact Carrier factory specifications, ensuring proper coil pull-in voltage, contact gap, and amperage rating. Generic contactors often use lower-grade contact materials that pit and weld prematurely, leading to callbacks and repeat failures.
  • Install difficulty: 3/5 — Requires shutting off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, a multimeter to confirm coil continuity, and insulated gloves. Photograph all wire connections before removal. Verify coil voltage and pole count on the data plate before installing.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed specifically for the Carrier C48A405051 commercial packaged unit. This listing covers OEM part numbers HN53CB115, HN53HF122, and HN53HG120 — all are factory-approved replacements for this model. Confirm coil voltage (24V) and pole count on your unit's data plate before ordering. Our parts specialists are available to verify fitment before you buy — no guesswork required.

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 C48A405051 — Ships Today?
Yes. This is the factory-specified OEM contactor for the Carrier C48A405051 — 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 C48A405051 — 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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