Landis+Gyr E650 Series User Manual page 36

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ZMD300xT
for three-phase
four-wire networks
Control inputs /
output contacts
Extension board
4200
© Landis+Gyr
Figure 30. Connection diagram of measuring unit ZMD300xT
In case the ZMD300 is used in a 3-wire network without neutral:
For a 3-phase, 3-wire connection, the measurement of phase-to-neutral
voltage as well as the measurement of single-phase energy have no
meaning, as no neutral voltage is supplied to the meter.
Figure 31. Connection diagram fixed control inputs/output contacts
Figure 32. Connection diagram extension board with 4 control inputs and 2 output
contacts
Basic version:
3 control inputs
2 output contacts (solid-state relays)
Signal allocation and numbering of
terminals for free parameterisation
Extension board 4200:
4 control inputs
2 output contacts (solid-state relays)
Signal allocation and numbering of
terminals for free parameterisation
D000030108 en m – E650 Series 3 – ZMD300AT/CT – User Manual
Mechanical construction