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OEM Carrier 2-Pole Contactor 24V Coil for C50A303052
Carrier

OEM Carrier 2-Pole Contactor 24V Coil for C50A303052

SKU: CARRIE-C50A303052-CONTACTOR-HN53CB115 Brand: Carrier
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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C50A303052

This OEM contactor is the factory-specified high-voltage relay for the Carrier C50A303052 commercial packaged unit. The contactor acts as the primary electrical switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. When the contactor fails — due to worn contacts, coil burnout, or pitting from arcing — the system will either refuse to start, hum without engaging, or drop out unexpectedly mid-cycle. Replaces OEM part numbers HN53CB115, HN53CD115, HN53HF122, and HN53HG120.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for compressor load | Direct OEM replacement with matched contact material and spring tension
  • OEM vs Generic: OEM contactors use silver-alloy contact tips rated for thousands of make/break cycles. Generic contactors frequently use inferior contact material that pits and welds prematurely, causing compressor failures and costly callbacks.
  • Install difficulty: 3/5 — Requires lockout/tagout of high-voltage power at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. Line-side terminals carry lethal voltage — confirm power is off with a meter before touching any wiring.
  • Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our warehouse.

Compatibility: Designed for the Carrier C50A303052 packaged rooftop/commercial unit. This listing covers cross-referenced OEM part numbers HN53CB115, HN53CD115, HN53HF122, and HN53HG120 — all factory-equivalent contactors for this platform. Verify your existing contactor's pole count and coil voltage on the unit's data plate or wiring diagram before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy.

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 C50A303052?
Yes. This is the factory-specified OEM contactor for the Carrier C50A303052. 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 C50A303052?
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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