No.P6972
P. 24/ 64
8.3 Grounding and connection of input side
WARNING
Observe the following to prevent electrical shock.
When touching live electrical parts, critical electric shock and burn may occur.
Do not touch live electrical parts inside or outside of the welding machine.
When grounding to the case of the welding power source, base metal and jigs connected
electrically to the base metal should be performed by persons qualified in electrical work and
according to the laws and regulations in your area.
Be sure to turn off the line disconnect switch before connecting.
Securely attach the case and cover after connecting cables
Provide a leakage circuit breaker, when the welding machine is used at place with high
humidity.
CAUTION
Be sure to provide a switch (with fuse) or circuit breaker at the input side of each welding
machine. The circuit breaker to be used should be rated for power requirements of the
welding machine.
Be sure to properly ground welding machine to avoid electric shock.
Provide a line disconnect switch for each welding machine.
Input power KVA and amperage of fuse or circuit breaker are as stated below.
CPDP-350 CPDP-500
Input power KVA More than 24kVA More than 29kVA
Amperage of fuse or circuit breaker
80A
100A
*
The
circuit
breaker
t
e
should
be
for
weldin
machine
or
for
motor.
Grounding cable
Use the following cable: More than input cable.
(more than AWG5 CPDP-350, AWG3 CPDP-
3
208/230V
Grounding
Clamp
Tighten the screws
for the cables.
Grounding
terminal
Input terminal
cover
Input cables
(more than
AWG5CPDP-350,
AWG3 CPDP-
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