Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Contactor 2-Pole 24V Coil for FIOP200E621GA — HN51KC024
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for FIOP200E621GA — HN51KC024

SKU: CARRIE-FIOP200E621GA-CONTACTOR-HN51KC024 Brand: Carrier

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model FIOP200E621GA — HN51KC024

This is the factory-specified OEM replacement contactor for the Carrier FIOP200E621GA packaged or split-system unit. The contactor is a high-voltage relay that closes when the thermostat sends a 24V signal, allowing line-voltage power to flow to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a burned coil, or a stuck plunger — the air conditioner will fail to start, hum without cooling, or run continuously without shutting off. Replacing the contactor is one of the most common and cost-effective HVAC repairs available.

  • Specs: 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier FIOP200E621GA | OEM part number HN51KC024 | Direct drop-in replacement
  • OEM vs Generic: This OEM contactor uses factory-spec contact material and coil windings, ensuring proper pull-in voltage and long service life. Generic contactors may use lower-grade contact alloys that pit faster under load, leading to premature failure and potential compressor damage.
  • Install difficulty: 2/5 — Disconnect all power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Always photograph all wire connections before removal to ensure correct reinstallation.
  • Warranty: 1-year OEM factory warranty included. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: Designed specifically for the Carrier FIOP200E621GA unit. Cross-references OEM part number HN51KC024. Verify coil voltage (24V) and pole configuration against your unit's wiring diagram and data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before your order ships — no guesswork required.

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 FIOP200E621GA — HN51KC024?
Yes. This is the factory-specified OEM contactor for the Carrier FIOP200E621GA — HN51KC024. 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 FIOP200E621GA — HN51KC024?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online