Hypertherm HT4001 Plasma Arc Cutting System User Manual
Page 245
APPENDIX D
18
d-4
HT4001
Instruction Manual
4. Connect the power leads to the U, V, and W terminals of TB5. Ensure that all connections are tight to avoid
excessive heating.
5. Connect the ground lead to terminal marked with the ground symbol at TB5 (see Figure d-3).
Line Disconnect Switch
Connecting the power cable to the line disconnect switch must conform to national or local electrical codes. This
work should be performed only by qualified, licensed personnel. See Power Requirements and Line Disconnect
Switch on pages 3-4 and 3-5.
Figure d-3
Power Cable Connections to TB5
TB5 (029165)
WARNING
There is line voltage at the terminal box as soon as the line disconnect switch is ON, even if the circuit
breaker on the HT4001 power supply is OFF.. As a common safety practice, ALWAYS verify that the line
disconnect switch is in the OFF position before installing, disconnecting or servicing in this area.