Kemppi 5001 Master - Manual (Page 7)

MASTER 5001/0541 – 7 ©
KEMPPI OY
Sizes of the mains cables and fuseratings for the machine at 100 % dury cycle are specified in the
table below:
Master 5001
Rated voltage 3~ 400 V
Mains voltage range 400 V ± 10 %
Fuses, delayed 35 A
Connection cable mm² 4 x 6,0 S
In cables of S type there is a protective grounding conductor coloured green-yellow.
2.4. WELDING AND EARTH CABLES
Use only copper cables with cross-sectional area of at least 50 …95 mm².
In enclosed table are shown typical load capacities of rubber insulated copper cables, when ambient
temperature is 25ºC and lead temperature is 85 ºC.
Cable Duty cycled ed Voltage loss /10 m
100% 60% 30%
50mm² 285 A 370 A 520 A 0,35 V/ 100 A
70 mm² 355 A 460 A 650 A 0,25 V/ 100 A
95 mm² 430 A 560 A 790 A 0,18 V/ 100 A
Do not overload welding cables due to voltage losses and heating.
Fasten the earthing press of the return current cable carefully, preferably direct onto the piece to
be welded. The contact surface of the press should always be as large as possible.
Clean the fastening surface from paint and rust.
2.5. MOUNTING OF POWER UNIT TO TRANSPORT CARRIAGE
Read mounting instructions for Master 5001 power source delivered with carriage T12. Fasten
power source carefully of that the equipment should withstand lifting with lifting device.