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OEM Carrier 2-Pole Contactor 30A 24V Coil for C50A403522 | National HVAC Parts
Carrier

OEM Carrier 2-Pole Contactor 30A 24V Coil for C50A403522 | National HVAC Parts

SKU: CARRIE-C50A403522-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 C50A403522

This OEM contactor is the factory-specified replacement for the Carrier C50A403522 commercial packaged unit. The contactor is a high-voltage relay controlled by the 24V thermostat signal — when the thermostat calls for cooling, the contactor closes to send line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an AC system hums, fails to start, or simply does nothing when cooling is demanded. Pitted or burned contacts, a welded-open coil, or a coil that won't pull in are all telltale signs this part needs replacement.

  • Specs: 2-pole | 30A rated | 24V coil voltage | Replaces OEM part numbers HN53CB115, HN53CD115, and HN53HF122 | Factory-matched contact material and coil pull-in voltage
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for the full cycle life of the unit. Generic contactors frequently use lower-grade contacts that arc, pit, and weld prematurely — causing repeat failures within a single season.
  • Install difficulty: 2/5 — Always disconnect power at the disconnect box before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Check coil voltage with a multimeter before condemning the contactor.
  • Warranty: 1-year OEM factory warranty. Orders placed before 3 PM EST ship same business day from our warehouse.

Compatibility: Designed for Carrier model C50A403522 commercial packaged units. This listing covers OEM part numbers HN53CB115, HN53CD115, and HN53HF122 — confirm your existing part number matches one of these before ordering. Verify pole count, amperage, and coil voltage on your unit's data plate or existing contactor label. Need help confirming fitment? Our HVAC parts specialists verify compatibility before every order.

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 C50A403522 | National HVAC Parts?
Yes. This is the factory-specified OEM contactor for the Carrier C50A403522 | 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 C50A403522 | 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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