Kemppi Kempomat 2500 - Manual (Page 7)

EN
Change of mains voltage / Kempomat 2500, 3200
Connection and change of the mains cable and the plug must be carried out only by a
competent electrician.
230 V
201
204
203
206
205
202
230 V
T002
400 V
230 V
0
201
204
203
206
205
202
400 V
400 V
T002
400 V
230 V
0
Connection 3~ 230 or 3~ 400 V of mains voltage
By delivery from the factory the Kempomat 3200 and 2500 machine has been connected for
mains voltage 3~ 400 V. In order to change the mains voltage in the Kempomat 2500/3200
machine, remove the side plate of the machine. Change the connections according to the
enclosed diagram. You find the corresponding wiring diagram on the instruction label, which
is under terminal block.
NOTE! The Kempomat 4200 machine has the connection for only one mains voltage!
2.4 welding and return Current Cables
In enclosed table are shown typical loading capacities of rubber insulated copper cables,
when ambient temperature is 25 °C and conductor temperature is 85 °C.
Kempomat 2500
Cable cross-section
Duty cycle ED Voltage loss / 10 m
Cu 100 % 60 % 30 % for 100 A
25 mm² 180 A 230 A 330 A 0.7 V
35 mm² 225 A 290 A 410 A 0.5 V
Kempomat 3200, 4200
Cable cross-section Duty cycle ED Voltage loss / 10 m
Cu 100 % 60 % 40 % for 100 A
50 mm² 285 A 370 A 450 A 0.35 V
70 mm² 355 A 460 A 560 A 0.25 V
NOTE! Don´t overload welding cables over permissible values 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 area of the press should always be as large and steady as possible.
Clean the contact surface from paint and rust.
5
Kempoma
t 2500, 3200, 4200 / © Kemppi O
y / 1117