Design and function
MMA welding
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099-002057-EW501
04.03.2019
5.1.7.1 Mains configuration
The machine may be connected to:
• a three-phase system with four conductors and an earthed neutral conductor
• a three-phase system with three conductors of which any one can be earthed,
e.g. the outer conductor
Figure 5-5
Legend
Item
Designation
Colour code
L1
Outer conductor 1
brown
L2
Outer conductor 2
black
L3
Outer conductor 3
grey
N
Neutral conductor
blue
PE
Protective conductor
green-yellow
• Insert mains plug of the switched-off machine into the appropriate socket.
5.2
MMA welding
CAUTION
Risk of crushing and burns!
When changing stick electrodes there is a risk of crushing and burns!
• Wear appropriate and dry protective gloves.
• Use an insulated pair of tongs to remove the used stick electrode or to move welded
workpieces.
5.2.1
Connecting the electrode holder and workpiece lead
Polarity depends on the instructions from the electrode manufacturer given on the electrode packaging.
Figure 5-6
