NEMA 6-20 Extension Cord
NEMA 6-20P to 6-20R-6-15R 20 Amp T-Blade Outlet Extension Cable

NEMA 6-20 Extension Cord, 6-20P Male Plug to 6-20/6-15R Female Receptacle, 20 Amp T-Blade Outlet Custom Extension Power Cable

  • High-Voltage 250V / 20A Rating: Designed specifically for 250-volt applications, this cord supports a maximum power of 5000W (250V x 20A), making it ideal for powerful equipment like large compressors, welders, and CNC machines.
  • NEMA 6-20P “T-Blade” Plug: The plug features two horizontal blades (one is T-shaped) and a ground pin, ensuring it only connects to dedicated 250V, 20-amp outlets for maximum safety and compatibility.
  • Versatile Dual Receptacle End: The female connector features both a NEMA 6-20R and a NEMA 6-15R receptacle. This allows you to power a single 20-amp, 250V device or a 15-amp, 250V device, providing crucial flexibility on the job site.
  • Custom Length & Color: We manufacture this cord to your specified length to ensure a perfect fit for your workspace, eliminating tripping hazards and cable clutter. Choose from a selection of colors for organization or safety visibility.
  • UL Listed Assurance: This cord is UL Listed, guaranteeing it meets the highest U.S. safety standards for electrical construction, materials, and performance under heavy load conditions.
  • Industrial-Grade Construction: Built with a heavy-duty, oil-resistant, and abrasion-resistant jacket (e.g., STW, SJTO) to withstand the rigors of workshops, factories, and job sites.
  • Optimal Wire Gauge: Utilizes a thick 12 AWG copper wire to ensure minimal voltage drop over distance and safe operation at the full 20-amp, 250V rating without overheating.
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NEMA 6-20P to 6-20R/6-15R 20 Amp T-Blade Outlet

The NEMA 6-20 Extension Cord is a heavy-duty, straight-blade power cable designed for high-amperage applications such as air conditioners, HVAC units, generators, power tools, and industrial equipment. It features a NEMA 6-20P male plug on one end and a NEMA 6-20R female receptacle on the other, with the female end also compatible as a T-blade adapter for NEMA 6-15R plugs. This allows it to accept both 15A and 20A T-slot plugs, making it versatile for extending power from a 20A/250V outlet. The cord supports up to 20 Amps, 250 Volts, and 5000 Watts, ensuring safe and reliable power delivery. It is UL-listed for safety and constructed with 100% copper conductors for optimal conductivity and durability.

Technical Specifications

  • Male: NEMA 6-20P (Male, 20A T-slot straight blade) Straight or Angle Plug
  • Female: NEMA 6-20R & NEMA 6-15R Combo (Accepts both 20A and 15A 250V plugs)
  • Electrical Rating: 250V AC, 20A, 5000W Max
  • Length: Customizable: 1-50 feet (e.g., 6 ft standard; specify exact length for orders).
  • Certifications: UL Listed (primary); compliant with RoHS, California Proposition 65.
  • Material: Slim PVC jacket (flame-retardant, non-toxic); molded plugs with strain relief;
  • Color: Standard white or black; custom colors available (e.g., clear, metallic, or branded hues via OEM).

Extension Cord Ideal Applications:

  • Industrial Machinery: Powering large air compressors, arc welders, CNC machines, and industrial pumps.
  • Woodworking & Metal Shops: Running high-power table saws, planers, milling machines, and other 250V workshop equipment.
  • Data Centers: Supporting specific server racks or power distribution units (PDUs) that require 250V input.
  • Commercial HVAC & Repair: For technicians servicing 250V commercial heating and cooling systems.
  • Automotive & Manufacturing: Operating heavy-duty diagnostic and repair equipment.

⚠️Important Note: This extension cord is designed for use ONLY with 250V circuits and equipment. Do not plug it into a standard 125V household outlet. Ensure the outlet and the circuit are rated for 250V/20A. Always check the power requirements of your equipment before use.

Sample availability

1-3 working days
MOQ

5 pieces for custom orders
Production lead time

10-15 working days
Export packaging standards

Export Cartons,or custom requirements, Pallets

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