Mobile welding cell
Connected load (IEC)
21 kVA
Connected load (NEC)
21 kVA
Fuse protection at 400V (IEC)
32 A type C
Fuse protection at 460V (NEC)
40 A class J
Average electrical power consump-
tion
15 kW
Connected loads
Tab. 2-12
Connecting cables
Establish the electric power supply in accordance with DIN EN
60204-1/4.3.1:
IEC
Electrical line
Copper line, five-core (L1, L2, L3, N, PE)
Conductor cross-sec-
tion
5 x 6 mm
2
Designed according to:
IEC 60364-4-43 (VDE 0100-430)
Ground wires
Designed according to:
IEC 60364-5-54 (VDE 0100-540)
Cross-section of the
entire ground wire
EN 60204-1, section 8.2.8.
Requirements for the connecting cable
Tab. 2-13
NEC
Electrical line
Copper line, at least four-core (L1, L2, L3, PE)
■
Copper line, four-core (L1, L2, L3, PE).
■
THHN copper or equivalent is recommended
(2000 V test voltage) designed for a maxi-
mum temperature of +90° C (+194° F).
■
No aluminum lines may be used for the
machine connection.
Conductor cross-sec-
tion
■
The conductor cross-section must meet
NEC 670-4 (a). The conductor cross-section
must be designed for at least 125 % of the
nominal current. The nominal current is
specified on the nameplate.
■
To ensure voltage stability and rating, the
line dimension should be larger than speci-
fied in the NEC table 310-16.
Requirements for the connecting cable
Tab. 2-14
2
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12
Electrics - Version 2
B1154en
