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4.2
Making the electrical connection
4.3
Connecting the device to the power grid
4.3.1
Preparing the grid connection
↻ A connection cable with 5 cores (5 individual cores or multi-core) up to max.
cable cross-section 16 - 28 mm is available on the device.
↻ Time required for AC connection: 30 min
↻ The nominal grid voltage matches the "VAC nom" specification on the name
plate.
1 For improved accessibility: Unfasten the AC input plate using the 6 screws [
T_30]
2 Unfasten the cable fitting for AC connection and PE earth (ground) [
3 Remove sealing plug.
4 Insert the AC cables into the cable fittings.
5 Strip the insulation from the AC cables.
6 Strip the insulation from the individual cores for L1 / L2 / L3 (ABC) and PE
(ground)((FRGM: neutral conductor (N)) so that the stranded wire and insula-
tion can be pushed into the shaft of the cable lug.
7 Press on cable lug.
8 Slip a shrink-fit sheath (not part of the scope of supply) over the shaft of the
ring cable lug of the AC cable.
Fasten the input plate using the 6 screws [
NOTE: When using metal screw connections, toothed discs must be placed un-
derneath to create an enclosure earthing.
4.3.2
Making the grid connection
4/5-wire connection, TN, TT system
↻ Grid connection is prepared.
1 The grounding cable must be placed on the grounding point and secured with
the provided screw, spring washer, and washer [
2 Place the cable lug of cores L1 / L2 / L3 / N on the busbar in accordance with the
labelling and secure it with a bolt, nut, spring washer and washer (fastening ele-
ments in scope of supply) [
NOTE: In TN-C systems, only four conductors (L1, L2, L3, PE) are permitted.
The N conductor remains unused, and bridging it with PE is prohibited.
NOTE: In the FRGM variant, that measures the N conductor (e.g., in France),
the N conductor must be connected. Therefore, this device is not suitable for
use in TN-C systems.
3 Optional: When using the double-row input plate (see accessories), the oppos-
itely configured cable lug must be placed under the upper cable lug on the
cores L1 / L2 / L3 / N according to the labelling on the busbar and fastened with
a bolt, nut, spring washer and washer (fastening elements included in the scope
of supply) [
W_17 /
4 Check all connected cables for tightness.
5 Tighten AC cable fittings [
» The device is connected to the power grid.
NOTE
Observe the general earthing recommendation of the existing mains system.
2
If the connection is made in a TN-C grid, connect the PEN grounding cable to the ground earthing point.
B/ M/ MF/ L
T_30 /
W_17 /
W_17 /
30 Nm ].
30 Nm ].
W_46 /
10 Nm ].
4
3
Fig. 4: Removing the AC input plate
1
W_46].
2
3
4
1
6 Nm
5
Fig. 5: Preparing the AC connection
1
2
3
4
5
10 Nm ].
2
1
Fig. 6: AC mains connection 4/5-pole
1
2
3
4
5
1
2
Housing base – AC-side
Screws for mounting
Input plate
Cable fitting
2
3
(3)
4
2
1
Screw
Washer (2x)
Ring cable lug top/bottom
Spring washer
Nut
5
2
3
4
Ground
L1 busbar
L2 busbar
L3 busbar
N busbar
PE earthing point
Page 7
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