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• Tripping current: 100mA (if locally not available/allowed use

a 30mA trip current, preferably selective type with small time
delay set)

• Install max. 2 machines on each RCD (for 30mA, only 1 ma-

chine)

• Type B. There are components inside the machine which

make use of DC-voltages and therefor a “type B” RCD is nec-
essary. For information only: Type B is better preformance
than type A, and type A is better than type AC.

• When locally allowed, there must always be installed an

RCD. In some power network earthing systems (IT, TN-C,
…), an RCD might not be allowed (see also IEC 60364).

• The machine control circuits are mostly supplied by a separat-

ing transformer. Therefore the RCD may not detect faults in
the control circuits (but the fuse(s) of the separating trans-
former will).

SUPPLY PROTECTION DEVICE

A supply protection device protects the machine and wiring
against overloads and short circuits. As supply protection device,
you can use either (glow-wire) fuses or (automatic) circuit break-
ers. See Electrical specification Tables

Table 7

for the rating of

the nominal current and other specifications of the supply protec-
tion device. This table specifies that the protection must be the
“slow” type. For circuit breakers this means curve D. Although
not recommended, if for some reason you can not use a slow
type, select the protection device with 1 step higher nominal cur-
rent rating to avoid disconnecting during start-up.

SUPPLY CABLE

The supply cable is not delivered with the machine.

Specifications:
• Conductors with copper cores. (Refer to the Electrical Speci-

fications charts for wire size details).

• Stranded conductors are strongly recommended (flexible wir-

ing) to avoid conductor breaking because of vibration.

• THE CROSS SECTION DEPENDS ON THE USED SUP-

PLY PROTECTION DEVICE. SEE

Table 6

FOR THE MINI-

MAL CROSS SECTION.

• Route the supply cable short as possible, directly from the

supply protection device to the machine without branching
off.

• No plug or extension cords: The machine is intended to be

permanently connected to the electrical network.

Connection:
• Insert the cable through the hole in the on the rear panel. En-

sure a strain relief (turnbuckle) is used so that the supply ca-
ble can not move.

• Strip the conductor ends according

Figure 21

• The protective conductor must be longer so that it is routed to

the machine without tension.

• With stranded conductors, use “wire end tubes” with an insu-

lated sleeve (6) for L1/U, (L2/V), (L3/W), (N) conductors.
Make sure there can not be accidental contact, since the sup-
ply cable stays under voltage even when the main switch is
off.

• Crimp a ring terminal (eyelet) to the protection conductor for

good fixation to the PE terminal.

• Connect the supply cable conductors to the terminals (main

switch (1)) marked with L1/U, (L2/V), (L3/W), (N), and the
terminal (copper screw) marked with PE, see

Figure 22

• Provide a sag in the cable, in front of the cable strain relief.

This will avoid ingress of condensed water into the machine,
see

Figure 22

Determining AWG Sizes

Power supply protection device nominal current (US)

Min. phase conductor

section, AWG [mm