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5 – TECHNICAL DATA
PRIMARY
Three phased power supply
Frequency
Maximum primary current (MMA)
Maximum primary current (TIG)
Maximum power consumption (MMA)
Maximum power consumption (TIG)
SECONDARY
No-load voltage
Welding current range
Welding current at 50 %
Welding current at 60 %
Welding current at 100%
Protection degree
Insulation class
Norms
Weight
Dimensions
6. INSTALLATION
6.1 CONNECTION TO THE MAIN SUPPLY
This unit must be connected to a three-phase 400V - 50 Hz/60 Hz + ground.
Main supply must be protected by fuses or circuit breaker according to the value I1eff written on the
specifications of the power source.
It is strongly suggested to use a differential protection for the operator's safety.
6.2 CONNECTION TO EARTH
For the operator's protection, the power source must be correctly grounded (according to the International
Protection Norms).
It is necessary to set a good earth connection with the green/yellow wire of the power cable. This will avoid
discharges caused by accidental contacts with grounded pieces. If no earth connection has been set, a high
risk of electric shock through the chassis of the unit remains possible.
MICROTIG DC 252 PULSE
V
3 x 400 V (-+10%)
Hz
50/60
A
20
A
14
KVA
13,9
KVA
9,7
V
72
A
15 - 250
A
250
A
230
A
180
IP 21S
H
IEC / EN 60974-1
Kg
12
cm
22 x 36 x 44
MICROTIG DC 252/322/402 PULSE
MICROTIG DC 322 PULSE
3 x 400 V (-+10%)
50/60
27
21
18,7
14,5
80
15 - 320
320
295
240
IP 21S
H
IEC / EN 60974-1
25
22 x 45 x 52
MICROTIG DC 402 PULSE
3 x 400 V (-+10%)
50/60
36
27
24,9
18,7
96
15 - 400
400
365
285
IP 21S
H
IEC / EN 60974-1
28,5
22 x 45 x 52
10
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