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E500 Multioperator Paks

E500 Multioperator PaksE500 Multioperator Paks

Top Features

  • Modular Pak Construction
  • DP120 Power Distribution Panel Included
  • High Amperage Stick Welding
  • Air Carbon Arc Gouging
  • Processes: Stick (SMAW), TIG (GTAW), MIG (GMAW), Multioperator, Air Carbon Arc Cutting, Flux-Cored (FCAW)

All the benefits of the E300 Multioperator Pak System but with up to 625 amps DC from each module. Each module has its own arc force control, potentiometer-type continuous output control and remote control receptacle. Operates with either 460 VAC or 575 VAC three-phase electrical input. Can be configured as either a 4Pak or 6Pak Multioperator System.

Product Details


Individual Module Specifications
DC Amperage Range: 75 - 625 A
Maximum OCV: 67
Rated Output: 500 A at 40 VDC, 60% duty cycle
4Pak Specifications
Weight: 2498 lb (1133.1 kg)
Dimensions: H: 76" (1930 mm) W: 57" (1448 mm)
D: 43.5" (1105 mm)
6Pak Specifications
Weight: 3694 lb (1675.6 kg)
Dimensions: H: 76" (1930 mm) W: 84" (2134 mm) D: 43.5" (1105 mm)


Stick (SMAW)


  • MIG (GMAW) - When used with voltage sensing wirefeeders

  • Multioperator

    Air Carbon Arc Cutting
  • Air Carbon Arc Cutting and Gouging (CAC-A) up to 3/8" diameter electrodes

  • Flux-Cored (FCAW)
  • Flux-cored (FCAW-SS) - When used with voltage sensing wirefeeders

  • Additional Features

    The choice for industrial applications offering a smooth, consistent arc and enough amperage for air carbon arc gouging with up to 3/8" diameter carbons. Ideal arc characteristics for critical welding such as low hydrogen and stainless steel electrodes. Superior all-position stability makes code quality welds and clear x-rays easier to attain. Built to Red-D-Arc Extreme-Duty specifications for dependable operation in even the most severe conditions.


    • DP120 Power Distribution Panel included
    • Ideal arc characteristics for critical welding such as low hydrogen and stainless steel electrodes
    • A smooth arc with superior all-position stability resists pop-outs and limits spatter making code quality welds and clear x-rays easier to attain
    • Full range output control with a "high" and "low" range for more precise output setting
    • Arc Force Control provides variable additional amperage during low voltage (short arc length) conditions which prevents sticking and shorting of organic coated electrodes, particularly globular transfer types such as stainless and low hydrogen, especially effective for root pass on pipe with stainless electrode
    • Line voltage compensation for constant output regardless of input power fluctuations
    • Fan-as-Needed for lower power costs, less noise and fewer contaminants drawn into the machine resulting in less maintenance
    • Extreme-Duty™ stainless steel construction for operation in harsh environments
    • Rugged tubular Pak-Lok-Frame™ enclosure for increased protection
    • Can be assembled with Pak-Lok™ connectors into 4Pak™ and 6Pak™ multioperator systems with single source power input ideal for onsite applications including construction and shipbuilding
    • Thermostatically protected against transformer overheating during overload currents and against insufficient cooling
    • Recessed front panels protect controls, totally enclosed control circuit compartment
    • All weather, full environmental protection (including salt water) for field construction
    • Triple dipped transformer assemblies for added reliability in adverse conditions
    • Drip-proof ventilation for protection in outdoor conditions
    • NEMA class I Rating
    • Multi-voltage input from a three phase line

    Options, Accessories and Related Equipment

    E500 Multioperator Paks

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    Airgas, an Air Liquide company, is the nation's leading single-source supplier of gases, welding and safety products. Known locally nationwide, our distribution network serves more than one million customers of all sizes with a broad offering of top-quality products and unmatched expertise.