4 Connection and installation Page 21
Stud welding unit operating manual Date: July 2021
ALPHA 850 07.2021 / EN Rev.: A
4 Connection and installation
The power supply cable and connecting parts are functionally arranged on the front
plate of the ALPHA 850 welding device.
Warning:
• Before starting connection work, turn off the ALPHA 850 welding
device!
The device’s main switch must be in the “O” position.
1 2 3 4
1 Power cable connection 3 Control cable connection (X7)
2 Welding cable connection (X20) 4 Earth cable connection (X21)
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