Kemppi 5000 Master - Manual (Page 7)

©
COPYRIGHT KEMPPI OY
Master 5000/0227 – 7
Sizes of the mains cables and fuse ratings for the machine at 100 % dury cycle are specifi ed in
the table below:
Master 5000
Rated voltage 400 V 3˜
Mains voltage range 380 V -10%…415 V + 6%
Fuses, slow-blow 35 A
Connection cable mm 2 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 …95mm².
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%
50mm 2 285 A 370 A 520 A 0,35 V/ 100 A
70 mm 2 355 A 460 A 650 A 0,25 V/ 100 A
95 mm 2 430 A 560 A 790 A 0,18 V/ 100 A
Don´t 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 5000 power source delivered with carriage T12. Fasten
power source carefully of that the equipment should withstand lifting with lifting device.