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OEM Carrier 3-Pole Contactor 208-240V 40A for ROA0750M5H
Carrier

OEM Carrier 3-Pole Contactor 208-240V 40A for ROA0750M5H

SKU: CARRIE-ROA0750M5H-CONTACTOR-HN53CD209 Brand: Carrier
✓ Guaranteed to fit ROA0750M5H — 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 ROA0750M5H

This is the factory OEM replacement contactor for the Carrier ROA0750M5H commercial rooftop or packaged unit. The contactor is the high-voltage switching relay that receives a low-voltage signal from the control board and closes the circuit to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a welded coil, or coil burnout — the system will either fail to start entirely, run continuously without shutting off, or trip on a fault code. Replacing it with the correct OEM part ensures full electrical compatibility and reliable operation.

  • Specs: 3-pole configuration | 208-240V coil | 40A Full Load Amps (FLA) | 50A Resistive rating | Factory-specified for Carrier ROA0750M5H
  • OEM vs Generic: OEM contactors are manufactured to exact Carrier coil pull-in voltage tolerances and contact gap specifications. Aftermarket contactors often use lighter contact materials, leading to premature pitting and arcing under high-amperage load cycles.
  • Install difficulty: 3/5 — Requires complete power lockout/tagout before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter (to verify coil resistance and confirm dead contacts). Photograph all wiring connections before removal. Professional installation is strongly recommended for commercial equipment.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our stocked warehouse.

Compatibility: Engineered for the Carrier ROA0750M5H. Verify your unit's data plate coil voltage and pole count before ordering. Not sure? Contact our fitment team — we confirm compatibility before you buy. In stock and ready to ship today.

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 ROA0750M5H?
Yes. This is the factory-specified OEM contactor for the Carrier ROA0750M5H. 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 ROA0750M5H?
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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