53
Fig. 8-3-7: Rear panel
1. Circuit beaker
The function of circuit breaker is to protect welding machine and operator by automatic trip to turn-off power supply when
overload or short circuit happens to the power source. Normally, the switch flipped to upward means power-on. To start or
stop the welding machine is done by the mains switch in the distribution box. Please do not take this circuit breaker as the
power switch.
2. Input power cable
It is 4-pin cable. The mixed-colored wire must be firmly grounded, the rest wires connect to corresponding 3-phase power
supply.
3. Earthing bolt
To ensure operators not being harmed and welding machine working normally, make sure the earthing bolt is grounded
firmly by protective GND wire, or make sure the protective GND wire (mixed-colored) of the input power cable is grounded
firmly.
4. Nameplate
5. Cooling fan
Cool down the heat components in the welding machine.
6. Gas inlet
Connect to Argon gas regulator with gas hose.
Rear panel
8-4 Connections
3/ N/ PE～3 80V 5 0H z
3～
f
2
f
1
MODE L
No.
STANDARD:
GB1 557 9.1-2 004
3
～
60Hz
U
1
=440 V I
1max
=33A I
1eff
=25A
20A /20 .8V ～500 A/40V
60 % 00% 1
387 A
35 .5V40V
500 A
U
2
X
I
2
20A /10 .8V ～500 A/30V
X 0 % 6 10 0%
387 A
25 .5V30V
500 A
I
2
U
2
MAD E IN
T IG 5 0 0
U
0
=84V
U
0
=84 V
U r=20V
PROT ECTIO N DGEREE :
IP23 INSULATION DEGREE:
H
124
5
6
3
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