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8
BOC Smootharc Advance III MIG 425R & 555R Operating manual
Switch on to
electrical safety
for single-phase equipment
BOC welding machines are designed and manufactured to
conform to IEC 60974 or AS 60974. This Standard not only covers
the machine but also the input cable and plug requirements
including the size of the plug that should be used.
X
Rated duty cycle
I
1
Rated
supply current
AS 60974-1
Formula in clause 3.33
Maximum effective supply current
√
I
I
× X + I
=
2
1eff
1
Remember...
Before operating your welding machine, follow the instructions in the operating manual provided.
For more information refer to WTIA TN 22 – Welding Electrical Safety (Revised 2003) and WTIA TN 07 Health
& Safety in Welding. If you have any queries please contact BOC 131 262 (AU), 1800 111 333 (NZ).
I
0
Rated no-load
supply current
(1-X)
2
0
The I
determines the correct plug, input cable
1eff
and input current required for each machine.
10A
I
≤
1eff
15A
I
≤
1eff
25A
I
≤
1eff
32A
I
≤
1eff
min – max
cable size
1.5 – 2.5 mm
2
1.5 – 4 mm
2
2.5 – 6 mm
2
4 – 10 mm
2
size must be indicated
on the cable
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