Hypertherm HT4001 Plasma Arc Cutting System - Manual (Page 138)

MAINTENANCE
16
6-12
HT4001
Instruction Manual
Figure 6-1 Primary Power Measurement Location – HT4001
CON1
GND
WARNING
There is line voltage at the contactors after 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 these areas.
L1 L2 L3