Hypertherm HD3070 Plasma Arc Cutting System w/ Automatic Gas Console - Manual (Page 58)

3-10 HD3070 with Automatic Gas Console Instruction Manual
16
INSTALLATION
Connect Power Cable
After the power supply and line voltage disconnect box have been placed, connect the power cable to the power
supply first and then connect it to the line disconnect switch.
Power Supply
To connect the power cable to a 220/380/415V power supply (078024), refer to Appendix F.
For other power supply voltages use the procedure below.
1. Insert the power cable through the strain relief at the lower right rear of the power supply. Connect the power
cable leads to TB1 on the rear center panel of the right side (see Figure 3-4).
2. Connect the power leads to the L1 (U), L2 (V), and L3 (W) terminals of TB1. Make sure that all electrical
connections are tight to avoid excessive heating.
3. Connect the ground lead to the ground stud.
Line Voltage Disconnect Box
Connecting the power cable to the disconnect box must conform to national and local electrical codes. This work
should be performed only by qualified, licensed personnel.
Figure 3-4 Power Supply Power Cable Connections
Power Cable
Ground Stud
(PE)
Power Supply
TB1
L1
(U)
L2
(V)
L3
(W)
Ground
L1 (U)
L2 (V)
L3 (W)
Connect to Line Voltage
Disconnect Box