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OEM Carrier Contactor 2-Pole 24V Coil for CP50P450P403510CP
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for CP50P450P403510CP

SKU: CARRIE-CP50P450P403510CP-CONTACTOR-HN53CD115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model CP50P450P403510CP

This OEM contactor is the factory-specified high-voltage relay replacement for the Carrier CP50P450P403510CP packaged unit. The contactor acts as the primary switching device that receives a 24V signal from the thermostat or control board and closes its contacts to deliver line voltage to the compressor and condenser fan motor. When a contactor fails — due to pitted contacts, a burned coil, or contacts welded shut — the system will either refuse to start entirely or run continuously without responding to thermostat commands.

  • Specs: 2-pole configuration | 24V control coil voltage | Factory OEM part number HN53CD115 | Built to original Carrier electrical specifications and contact ratings
  • OEM vs Generic: This OEM contactor uses factory-grade silver-alloy contacts rated for the exact load of your CP50P450P403510CP unit. Generic contactors often use lower-grade contact materials that pit and erode faster under repeated high-amperage switching cycles, leading to premature failure and potential compressor damage.
  • Install Difficulty: 3/5 — Requires shutting off power at both the disconnect and breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and wire labels or tape. Always photograph existing wiring before removing any leads. Verify coil voltage and pole count match your unit's data plate before installation.
  • Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Orders placed by 3 PM local time ship same business day from our stocked warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model CP50P450P403510CP commercial packaged units. Cross-references OEM part number HN53CD115. Confirm pole count, coil voltage, and amperage rating on your unit's wiring diagram or data plate prior to ordering. Our parts specialists are available to verify fitment — order with confidence and get your system back online fast.

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 CP50P450P403510CP?
Yes. This is the factory-specified OEM contactor for the Carrier CP50P450P403510CP. 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 CP50P450P403510CP?
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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