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EN
1.0
TECHNICAL DESCRIPTION AND CHARAC-
TERISTICS
1.1
DESCRIPTION
These generators are three-phase rectifiers, specially designed for
arc welding with every kind of coated electrode (Manual Metal Arc).
The direct current delivered can be adjusted continually, even un-
der load, by means of a manually operated magnetic shunt.
The current setting (I2) can be read off the graduated scale on the
front panel, corresponding to the arc voltage (U2) according to the
formula U2V = 20V+ 0.04 I2 (UNI-ISO 700).
MAIN COMPONENTS:
1.
Three-phase transformer with magnetic shunts and adjuster
mechanism
2.
Three-phase Graetz bridge rectifier with protection.
3.
Inductor (on 300 Amp. models only).
4.
Single-phase electric cooling fan.
5.
Main line switch with interlock to change supply voltage.
6.
Welding cable connection terminals (+ / -).
7.
Power cable (3ph + PE).
1.2
TECHNICAL CHARACTERISTICS - DATA PLATE
MOD. 240 A
PRIMARY
Three phase supply
Frequency
Effective consumption
Maximum consuption
SECONDARY
Open circuit voltage
Welding current
Duty cycle 35%
Duty cycle 60%
Duty cycle 100%
Protection class
Insulation class
Weight
Dimensions
European Standards
MOD. 280 A
PRIMARY
Three phase supply
Frequency
Effective consumption
Maximum consuption
SECONDARY
Open circuit voltage
Welding current
Duty cycle 35%
Duty cycle 60%
Duty cycle 100%
Protection class
Insulation class
Weight
Dimensions
European Standards
TECHNICAL DESCRIPTION AND CHARACTERISTICS
230 V
400 V
230 V / 400 V
50 Hz
21,5 A
12,5 A
36 A
21 A
62 ÷ 66 V
45 A ÷ 220 A
220 A ÷ 28,8 V
170 A ÷ 26,8 V
130 A ÷ 25,2 V
IP 21
H
Kg. 57
mm 450 x 620 x 890
EN 60974.1 / EN 60974.10
230 V
400 V
230 V / 400 V
50 Hz
25 A
15,5 A
42,5 A
24,5 A
61 ÷ 66 V
55 A ÷ 260 A
260 A ÷ 30,4 V
200 A ÷ 28 V
155 A ÷ 26,2 V
IP 21
H
Kg. 83
mm 560 x 730 x 1080
EN 60974.1 / EN 60974.10
MOD. 350 A
Three phase supply
Frequency
Effective consumption
Maximum consuption
Open circuit voltage
Welding current
Duty cycle 35%
Duty cycle 60%
Duty cycle 100%
Protection class
Insulation class
Weight
Dimensions
European Standards
MOD. 400 A
Three phase supply
Frequency
Effective consumption
Maximum consuption
Open circuit voltage
Welding current
Duty cycle 45%
Duty cycle 60%
Duty cycle 100%
Protection class
Insulation class
Weight
Dimensions
European Standards
2.0
INSTALLATION
IMPORTANT: BEFORE CONNECTING, PREPARING OR US-
ING EQUIPMENT READ, SAFETY PRECAUTIONS.
2.1
CONNECTING THE WELDING MACHINE TO THE
MAINS ELECTRICITY SUPPLY
Turning off the welding machine while welding could damage it se-
verely. Check that the power socket is equipped with the fuse in-
dicated in the technical data table on the generator. All generator
models are designed to compensate power supply variations. For
variations of +-10%, a welding current variation of +-0.2% is cre-
ated.
3 EN
PRIMARY
230 V
230 V / 400 V
50 Hz
34 A
19,5 A
57 A
SECONDARY
63 ÷ 70 V
50 A ÷ 325 A
325 A ÷ 33 V
250 A ÷ 30 V
190 A ÷ 27,6 V
IP 21
H
Kg. 107
mm 560 x 730 x 1080
EN 60974.1 / EN 60974.10
PRIMARY
230 V
230 V / 400 V
50 Hz
52,5 A
30,2 A
78 A
SECONDARY
71 ÷ 79 V
60 A ÷ 400 A
400 A ÷ 36 V
345 A ÷ 33,8 V
265 A ÷ 30,6 V
IP 21
H
Kg. 123
mm 560 x 730 x 1080
EN 60974.1 / EN 60974.10
400 V
33 A
400 V
45 A
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