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OEM Carrier 40A Contactor 2-Pole 24V Coil for CP50P450P405510CP
Carrier

OEM Carrier 40A Contactor 2-Pole 24V Coil for CP50P450P405510CP

SKU: CARRIE-CP50P450P405510CP-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 CP50P450P405510CP

This OEM replacement contactor is the factory-specified part for the Carrier CP50P450P405510CP packaged unit. The contactor is a high-voltage relay controlled by the 24V thermostat circuit — when the thermostat calls for cooling, the contactor closes its poles to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common causes of an air conditioner that won't start, hums without running, or trips the breaker repeatedly.

  • Specs: 2-pole configuration | 24V coil voltage | 30–40A rated contacts | Factory OEM part number HN53CD115 | Direct drop-in replacement
  • OEM vs Generic: This OEM contactor is manufactured to exact Carrier factory specifications with silver-alloy contact tips for maximum arc resistance and service life. Generic contactors frequently use lower-grade contact materials that pit and fuse under repeated load cycling, leading to premature failure.
  • Install difficulty: 2/5 — Always disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers. Photograph all wiring connections before removing the old contactor to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier CP50P450P405510CP commercial packaged units. Verify coil voltage (24V) and pole configuration on your unit's data plate and wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — just reach out before you order. Order by 3PM EST for same-day shipping.

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 CP50P450P405510CP?
Yes. This is the factory-specified OEM contactor for the Carrier CP50P450P405510CP. 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 CP50P450P405510CP?
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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