Brands Guides About
Miller 281338 Field GFCI Receptacle Kit — main product image
Miller

Miller 281338 Field GFCI Receptacle Kit

★★★★★5.0 (1 reviews)

Field-installable GFCI receptacle kit that adds ground fault protection to Miller welding machines rated at 20A/125V.

$94.03*$103.99Save 9%
✓ In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The Miller 281338 Field GFCI Receptacle Kit is an OEM accessory designed to retrofit compatible Miller engine-driven welders with ground fault circuit interrupter protection on their 125-volt, 20-amp auxiliary power receptacle. On many construction sites, OSHA regulations and local electrical codes mandate GFCI protection on all temporary power outlets, including those built into portable welding machines. This kit provides a straightforward path to compliance by replacing the welder's existing standard receptacle with a GFCI-protected version, allowing operators to safely run power tools, lights, and other equipment from their welder's auxiliary output.

The plug-in connector design is intended for field installation, meaning welders can be upgraded on-site rather than taken out of service for a shop visit. The kit is rated at 20 amps and 125 volts, matching the auxiliary power specifications of compatible Miller machines. As a genuine Miller part, it is engineered to integrate properly with the welder's electrical system, ensuring reliable trip characteristics and consistent protection. Before purchasing, it is important to verify that your specific Miller model supports this kit, as not all machines share the same receptacle configuration.

Specifications

Brand
Miller
Model
281338
Type
Field GFCI Receptacle Kit
Amperage
20 Amps
Voltage
125 Volts
Connector Type
Plug-In

Pros & Cons

👍 Pros

  • Brings GFCI ground fault protection to Miller welders that shipped without it
  • Helps meet jobsite electrical safety code requirements for outdoor and construction environments
  • Rated at 20 amps and 125 volts, matching the auxiliary output of compatible Miller machines
  • Field-installable design allows retrofitting without sending the welder to a service center
  • OEM Miller part ensures proper fit and electrical compatibility

👎 Cons

  • Compatibility is limited to specific Miller welder models, so buyers must verify fitment before purchasing
  • Installation requires electrical knowledge and comfort working inside a welding power source
  • The kit only covers the 125V/20A receptacle and does not protect higher-voltage outlets on the machine
  • Adds cost to machines that may already have standard receptacles functioning adequately in non-code-required settings

Frequently Asked Questions

The kit is designed for Miller engine-driven welders and power sources that have a 20-amp, 125-volt auxiliary power receptacle. Check your welder's operator manual or contact Miller to confirm compatibility with your specific model.
The kit is designed for field installation, but it involves electrical wiring on a welding power source. Miller recommends that installation be performed by a qualified electrician or authorized service technician to ensure safety and proper function.
GFCI protection is required by many jobsite safety codes, especially on construction sites and outdoor work areas. It detects ground faults and cuts power in milliseconds, protecting users from electrical shock when using power tools or equipment plugged into the welder's auxiliary outlet.
It replaces the existing standard auxiliary power receptacle on compatible Miller welders with a GFCI-protected version. It does not add an additional outlet.

Related Products