Thermal Arc C/W VFE 4C HS III, Руководство по эксплуатации

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3.04 Electrical Input Requirements
Operate the welding power source only from a t hree-phase 50/60 Hz, AC power
supply. The input voltage must match th e electrical input voltage shown on the
input data label on the unit nameplate. Contact the local electric utility for information
about the type of electrical service available, how proper connections should be made,
and inspection required.
The line disconnect switch provides a safe and convenient means to completely
remove all electrical power from the welding power supply whenever necessary to
inspect or service the unit.
Note
This unit is equipped with a three-conductor with earth power cable that is connected
at the welding power source end for three-phase electrical input power .
Do not connect an input (BROWN, BLUE or RED) conductor to the ground terminal.
Do not connect the ground (YELLOW/GREEN) conductor to an input line terminal.
Refer to Figure 3:
1 Connect end of ground (YELLOW/GREEN) conductor to a suitable ground.
Use a grounding method that complies with all applicable electrical codes.
2 Connect
pr
i
mery power cable
ends
;
line 1
,
line 2 and line 3 input
c
onductors
to the
de-energized line disconnect switch.
3 Use
the below t
able as a guide to select line fuses for the disconnect
switch.
Input Voltage Fuse Size
3Phase 400 VAC 32 Amps
Electrical Input Connections
Note
Fuse size
are
based on not more than 200 percent of the rated input amperage of the
welding power source (
please refer beck to the local
Electrical Code
s
).
Figure 3.
Electrical Input Connections
12