User’s Manual 7M
10
ELECTRICAL CONNECTION
WARNING
Wrong or incomplete connection of voltage or other terminals can cause non-operation or damage to the device.
Installation must be carried out and inspected by a specialist or under his supervision.
When working on the meter, switch off the mains voltage! It is recommended to use 3x80 A fuse for the line protection.
Meter is used for direct connection into the three-phase four-wire or three-wire networks.
It can be used also in single-phase network, connected in the phase L3. Three-wire 2 system connection network measures
only phase to phase values (phase values are not available).
After electrical installation for MID approved meters the installation should be also set and confirmed in software.
Until installation confirmation warning Installation not set is displayed on LCD. For installation setting see item 3.2.1.
PLEASE NOTE
Setting of installation (see paragraph 3.2.1.) can be done just once, so take care to confirm the connection which fits
the required connection and required use.
Recommended installation:
1 Mounting to DIN rail according to DIN EN60715
2 Power contacts:
•
Power contacts capacity 2.5 mm
2
– 25 mm
2
• Connection screws M5
• Max torque 3.5 Nm
3 Auxiliary terminals:
• Auxiliary terminals contact capacity 0.05 mm
2
– 1.5 mm
2
• Auxiliary terminals screws M3
• Max torque 0.6 Nm
Mark Meaning
L
1
,
2
,
3
Line input
N Neutral input
Table 2
: Marks used on wire connection diagrams
