User’s Manual WM3M4 &WM3M4C
2.2 Electrical connection
WARNING
Wrong or incomplete connection of voltage or other terminals can cause non-operation or
damage to the device.
The meters are used for direct connection into the four-wire networks or single-phase (L3) operation.
They are also equipped with communication terminals. Pictures below are showing equipped
combination.
Recommended installation:
1 Mounting to DIN rail according to DIN EN60715
2 Main inputs:
a. Contacts capacity: rigid (flexible) 2.5 mm
2
… 25 (16) mm
2
b. Connection screws: M5
c. Maximum torque: 3.5 Nm (PZ2)
d. Length or removed isolation: 10 mm
3 Communication terminals:
a. Contact capacity: 1 mm
2
… 2.5 mm
2
b. Connection screws: M3
c. Maximum torque: 1.2 Nm (PZ2)
d. Length or removed isolation: 8 mm
PLEASE NOTE
Neutral wire must be connected to the meter.
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