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37833 - 25ft 50A Welder Extension Cord NEMA 6-50

Packaging: pack of 1

Sorry, product has been discontinued by the vendor.

OVERVIEW

Industrial Grade Power Extension for Welding Equipment

The ESAB 37833 Power Extension Cord is a critical accessory for industrial environments where welding equipment mobility is restricted by power outlet locations. Engineered to handle the rigorous demands of high-amperage welding processes, this 25-foot extension cord is rated for 50 Amps and 230 Volts, making it universally compatible with single-phase industrial welding power sources. The cord utilizes a heavy-duty STW jacket, which stands for Service Grade, Thermoplastic, and Weather-resistant, ensuring it withstands exposure to oils, solvents, acids, and the physical abrasion common in metal fabrication shops.

Voltage drop is a significant concern when extending power to inverter or transformer-based welding machines, as it can lead to unstable arcs and poor weld quality. This extension cord addresses that issue with high-quality 8 AWG copper conductors (8/3 configuration) that maintain consistent voltage delivery over the 25-foot span. The molded NEMA 6-50P (plug) and NEMA 6-50R (receptacle) ends are factory-bonded to the cable, providing superior strain relief compared to field-assembled connectors. This integration prevents the common failure point where cable strands pull away from screw terminals inside the plug housing.

Safety and compliance are paramount in professional settings. This cord is designed to meet North American safety standards for temporary power distribution. The grounding pin is fully integrated to ensure the chassis of your welding machine remains properly grounded, protecting the operator from electrical faults. Whether utilized for MIG, TIG, or Plasma Cutting equipment, the ESAB 37833 provides a reliable, low-resistance link to your facility's power grid, ensuring your equipment operates within its specified duty cycle and performance parameters.

Technical Specifications:

  • Configuration: NEMA 6-50 (3-prong, 2 hot, 1 ground)
  • Rating: 50A / 250V
  • Wire Type: Stranded Copper, 8 AWG
  • Insulation: Heavy Duty Thermoplastic
Additional Information
Packaging Description:1 Per Ea, pack of 1
Amps:50
Voltage:230 V
Length :25 ft
Receptacle Type:NEMA 6-50R
Jacket Type:STW Heavy Duty
----- new values below ----
Plug Type:NEMA 6-50P
Receptacle Type:NEMA 6-50R
Conductor Gauge:8 AWG
Conductors:3
Jacket Type:STW Heavy Duty
Amps:50
Voltage:230 V
Length:25 ft
Packaging Description:1 Per Ea

INCLUDED

  • 1x 25ft 50A Power Extension Cord
  • Attached NEMA 6-50P Plug
  • Attached NEMA 6-50R Receptacle

APPLICATIONS

  • Extending reach for MIG, TIG, and Stick welders
  • Powering plasma cutters in large workshops
  • Automotive repair shops requiring mobility
  • Construction sites with temporary power poles
  • Home garages with limited 230V outlets
  • Maintenance and Repair Operations (MRO)

FAQ

Yes, as long as your machine uses the standard NEMA 6-50 plug (which the Millermatic 252 typically does), this cord is perfectly compatible.

No, this cord is designed for 230V/250V applications and uses a NEMA 6-50 plug configuration which will not fit standard 110V household outlets.

This cord utilizes 8 AWG (American Wire Gauge) conductors, which is the standard requirement for carrying 50 Amps over a 25-foot distance safely.

Yes, the STW jacket rating indicates it is suitable for outdoor use and is weather-resistant, though connections should not be submerged in water.

While physically possible, it is not recommended to daisy chain high-amperage extension cords as it increases voltage drop, which can negatively affect welder performance and potentially overheat the connections.

No, NEMA 6-50 configurations utilize two hot wires and one ground wire. They do not carry a neutral, which is standard for pure 230V welding loads.

It looks similar but is different. This is a NEMA 6-50 (welder style), whereas older dryers use NEMA 10-30 or 14-30. They are not interchangeable.

Yes, provided your plasma cutter operates on 230V single-phase power and is equipped with a NEMA 6-50 plug.