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Qualifications and Requirements
System electrical requirements
General input power requirements
The switches, fuses, and cords that you supply must comply with all applicable national and local electrical codes and requirements, and be installed by a licensed electrician.
Main power cord requirements
As an installer or user, you must supply the main power cord for your cutting system.

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Qualifications and Requirements
- Document requirements
- Operator qualifications
  A person is considered qualified to operate the cutting system if he or she is trained and knowledgeable about cutting system equipment construction, operation, and work methods, and about how to recognize and avoid hazards that can be present with certain cutting system equipment or work methods.
- Qualifications of service personnel
  It can be hazardous to do service and maintenance on industrial cutting systems and equipment.
- System electrical requirements
  - Electrical codes and requirements
  - General input power requirements
    The switches, fuses, and cords that you supply must comply with all applicable national and local electrical codes and requirements, and be installed by a licensed electrician.
    - Line-disconnect switch requirements
      As an installer or user, you must supply a separate line-disconnect switch for the plasma power supply.
    - Circuit breaker or fuse requirements
      You must use a circuit breaker or fuse that is sufficient to support the plasma cutting system.
    - Main power cord requirements
      As an installer or user, you must supply the main power cord for your cutting system.
  - Input power requirements for CE units
    CE cutting systems have special input power requirements.
  - Remote on-off switch requirements
    You must supply the remote on-off switch, or switches, for your cutting system.
- Process-gas requirements for all gas connect consoles
  You must supply the process gases for your cutting system.
- Shield-water requirements (VWI and OptiMix)
  If you use water as a shield fluid, use the following water pressure requirements, flow requirements, and water-purity guidelines.
- Torque specifications for gas or water plumbing and hose connections
  For the best results, use the recommended torque specifications for plumbing and hose fittings.
- Coolant requirements
  Add the correct type and amount of coolant before you operate the plasma cutting system.
- Requirements to put system components in position
- Torch mounting bracket requirements
  Make sure to use a torch mounting bracket that obeys the requirements for XPR® torches.
- Torch lifter requirements
  Use a torch lifter that has the correct weight capacity for XPR® torches.
- CNC requirements for plasma cutting systems
  There are specific Computer Numerical Control (CNC) features that are necessary for integration with plasma cutting systems.
- Recommended grounding and shielding
  It is important to use grounding and shielding best practices when you set up a plasma cutting system. This can minimize problems related to Electromagnetic Interference (EMI), or electrical noise.
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Main power cord requirements

As an installer or user, you must supply the main power cord for your cutting system.

Refer to Input power requirements for recommended main power cord size.

The recommended main power cord sizes are based on Table 310.16 of the U.S. National Electric Code (2023 Handbook). Input power requirements shows stranded-flexible cord rates for 90°C (194°F). The size requirement for the main power cord at your site can change because of the following conditions:

Wires with lower temperature ratings
Wires with different insulation types
Different distances between the line-disconnect switch or receptacle and the plasma power supply
Local codes and regulations

The strain relief for the input power cord that comes with the plasma power supply is sized correctly. Speak with a licensed electrician to make sure that your main power cord size and length comply with the codes in your location.

Always follow the national and local electrical safety requirements for your location, including requirements for correct electrical system design and installation and main power cord size and length. Speak with a licensed electrician for more information about the codes in your location.