Kemppi Pro 3200 EVOLUTION, Operation Instructions Manual

8 – Pro 3200 Evolution, Pro 4200 Evolution, Pro 5200 Evolution/0109 

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KEMPPI

OY

05

If changing the mains cable take into consideration the following:

The cable is entered into the machine through the inlet ring on the rear panel of the machine and 

fastened with a cable clamp (05). The phase conductors of the cable are coupled to connectors 

L1, L2 and L3. The earth protection coloured green-yellow is coupled to connector

If you are using 5-lead cable, you must connect neutral conductor with

terminal N.

Sizes of the mains cables and fuse ratings for the machine at 100% duty cycle 

are specified in the table below:

.............................................Pro 3200...................Pro 4200................. Pro 5200
Rated voltage ........................................................ 400 V 3~ .................................
Mains voltage range .......................................... 360 V… 440 V.............................
Fuses, slow-blow .................25 A..........................25 A........................ 35 A
Connection cable *) mm

2

.....4 x 2,5 S ...................4 x 6,0 S ................. 4 x 6,0 S

*) In cables of S type there is a protective grounding conductor coloured green-yellow.

2.2.2.  Welding and earth cables

Recommended copper cables with cross-sectional area are as follows:
Pro 3200................50 ... 70 mm

2

Pro 4200................70 ... 90 mm

2

Pro 5200................70 ... 90 mm

2

In enclosed table are shown typical load capacities of rubber insulated copper 

cables, when ambient temperature  is 25 ºC and lead temperature is 85 ºC.

CABLE...............DUTY CYCLE ED ............................ VOLTAGE LOSS / 10m
...........................100%.........60% ...........30%
50 mm

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 earth clamp of the return current cable carefully, preferably direct onto the piece to be 

welded. The contact surface of the earth clamp should always be as large as possible.
Clean the fastening surface from paint and rust.

3.  OPERATION CONTROL SWITCHES AND

POTENTIOMETERS AND THEIR USE

3.1.  MAIN SWITCH I/O

When you turn the switch into I-position, pilot lamp H11 on the front face is illuminated and 

the machine is ready for use.

Always turn the machine on and off with the mains switch, never use the

mains plugs as a switch.