EN
FastMig KM 400:
This equipment complies with IEC 61000-3-12 provided that the short-circuit power S
sc
is greater than or equal to 4.7 MVA at the interface point between the user's supply and
the public supply network. It is the responsibility of the installer or user of the equipment
to ensure, by consultation with the distribution network operator if necessary, that the
equipment is connected only to a supply with a short-circuit power S
sc
greater than or equal
to 4.7 MVA.
FastMig KM 300:
WARNING: This equipment does not comply with IEC 61000-3-12. If it is connected to a public
low voltage system, it is the responsibility of the installer or user of the equipment to ensure,
by consultation with the distribution network operator if necessary, that the equipment may
be connected.
2.3
CONNECTION TO THE MAINS SUPPLY
FastMig power sources are delivered equipped with 5 m mains cable without plug.
If local electricity regulations of operating country are stating otherwise, the mains cable
should be replaced in conformity with the local regulations.
Connection of the mains cable, mounting and change of the plug should only be carried out
by a competent electrician.
Remove the machine’s right side plate to enable the mounting of a mains cable.
KMS power sources can be connected to the mains supply of 400 V 3~ .
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.
NOTE!
If you are using 5-lead cable, do not connect neutral conductor.
Sizes of the mains cables and fuse ratings for the machine at 100 % duty cycle are specified in
the table below:
Rated voltage
Mains voltage range
Fuses, slow-blow
Connection cable *) mm²
KMS 300 400 V 3~
360 V – 440 V
20 A
4 x 6.0 S
KMS 400 400 V 3~
360 V – 440 V
25 A
4 x 6.0 S
KMS 500 400 V 3~
360 V – 440 V
35 A
4 x 6.0 S
*) In cables of S type there is a protective grounding conductor coloured green-yellow.
6
FastM
ig KMS 300, 400, 500 / © Kemppi O
y / 1110