Connect electric power to the cutting system

Connect the main power cord to the plasma power supply. Make sure that the line-disconnect switch is in the OFF position. Use the applicable color codes for the main power cord wires.

You must supply the main power cord for your cutting system. Select one that complies with local codes and all regulations and input power requirements. Refer to General input power requirements.

The distance of the receptacle from the main box also can have an effect on size requirements for the main power cord. For information about the codes in your location and the requirements for your site, speak with a licensed electrician.

  1. Make sure that the line-disconnect switch is in the OFF position and stays in the OFF position until all installation steps are complete.
  2. Connect the main power cord to the plasma power supply, as shown.
    1. Connect the ground lead (PE) from the main power cord to the ground terminal of TB1.
    2. Connect the W, V, and U leads from the main power cord to the related TB1 terminals.

      If your cutting system has a 200 V, 208 V, 220 V, or 240 V configuration, connect the grounding cable (PE) to the brass block near the ground terminal of TB1. To connect the PE, U, V, and W leads from the main power cord, remove the connection hardware from the TB1 terminal and the brass PE block terminal and use a straight lug with a 0.50 inch inner diameter hole for each connection.

    Figure 1. Main power cord wire color and terminal location
    Wire color codes for North America Wire color codes for Europe, Asia, and most locations outside of North America
    1 TB1 terminal
    2 U Black Black
    3 V White Blue
    4 W Red Brown
    5 GND (PE) (earth ground)Ground lead symbol Green/yellow Green/yellow
  3. Comply with national and local electrical codes to connect the W, V, and U power leads from the main power cord to the line-disconnect switch.