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OEM Carrier 3-Pole Contactor 208/240V Coil for RSA0300L2Y
Carrier

OEM Carrier 3-Pole Contactor 208/240V Coil for RSA0300L2Y

SKU: CARRIE-RSA0300L2Y-CONTACTOR-HN53CD209 Brand: Carrier
✓ Guaranteed to fit RSA0300L2Y — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 3-Pole Contactor HN53CD209 for Model RSA0300L2Y

This is the factory-specified OEM replacement contactor for the Carrier RSA0300L2Y split-system air conditioner. The contactor is a critical high-voltage switching relay that receives a low-voltage signal from the control board and closes the circuit to deliver line voltage to the compressor and condenser fan motor. When it fails, the system may hum without starting, chatter repeatedly, fail to turn on, or run continuously without shutting off — all signs of worn contacts or a failed coil.

  • Specs: 3-Pole configuration | 208/240V coil voltage | OEM part number HN53CD209 | Factory-matched contact rating for compressor and fan load protection
  • OEM vs Generic: This genuine Carrier OEM contactor is manufactured to exact factory contact gap, coil pull-in voltage, and silver-alloy contact specifications. Generic contactors often use inferior contact materials that pit and burn prematurely, leading to repeat failures within one season.
  • Install difficulty: 3/5 — Requires shutting off all power at the disconnect AND the breaker before touching any terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter, and a phone to photograph all wiring connections before removal. Line voltage is present in this section of the unit — do not bypass safety lockout steps.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as a direct OEM replacement for Carrier model RSA0300L2Y. Always verify the coil voltage and pole configuration against your unit's wiring diagram before ordering. Our team is available to confirm fitment — contact us before you order if you have any questions.

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 RSA0300L2Y?
Yes. This is the factory-specified OEM contactor for the Carrier RSA0300L2Y. 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 RSA0300L2Y?
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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