5 OPERATION
0446 404 001
- 17 -
© ESAB AB 2020
Recommended maximum welding current values for the welding/return cable(copper)
at an ambient temperature of +25°C and normal 10minutes cycle
Cable size mm
2
Duty cycle
Voltage
drop/10m
100%
60%
35%
50
285 A
320 A
370 A
0.352 V / 100 A
70
355 A
400 A
480 A
0.254 V / 100 A
95
430 A
500 A
600 A
0.189 V / 100 A
Recommended maximum welding current values for the welding/return cable(copper)
at an ambient temperature of +40°C and normal 10minutes cycle
Cable size mm
2
Duty cycle
Voltage
drop/10m
100%
60%
35%
50
250 A
280 A
320 A
0.352 V / 100 A
70
310 A
350 A
420 A
0.254 V / 100 A
95
375 A
440 A
530 A
0.189 V / 100 A
5.3
Symbols and functions
Mains power supply
switch
Overheating (3)
Protective earth
Positioning of lifting eye
Arc force
Inductance
Gas detection
MMA welding
Ending arc current /
Crater fill current
Ending arc voltage / Crater fill
voltage
5.4
Thermal protection
The welding power source has overheating protection that operates if the temperature
becomes too high. When this occurs, the welding current is interrupted, and an overheating
indication lamp is lit. The overheating protection resets automatically when the temperature
has fallen with in its normal working temperature.
