Landis+Gyr E650 Series User Manual page 38

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Terminal layout
(example ZMD400xT)
© Landis+Gyr AG
The top row of terminals (level 1) consists of spring-loaded terminals and
comprises

Extension board terminals on the left
Depending on the version, up to 4 control inputs or 6 output contacts
or a combination of these with maximum 6 inputs and outputs, or volt-
age connections for a separate supply.

Communication unit terminals on the right
The centre row of terminals (level 0) likewise consists of spring-loaded ter-
minals and comprises:

Voltage outputs U1, U2, U3 and N, tapped from the relevant phase input

3 fixed control inputs with a common return line G (electrically isolated)

2 output contacts for transferring fixed valency pulses or control
signals (electrically isolated)
The lower row of terminals comprises the phase connections with input and
output of the circuit for each phase with the voltage connection in between
and neutral conductor.
Fig. 3.10 Terminal layout ZMD400xT according to DIN
Apart from the common terminal layout according to DIN the ZMD400
meters are also available optionally with symmetrical terminal layout.
Fig. 3.11 Symmetrical terminal layout ZMD400xT
D000030110 d – E650 Series 3 (ZMD400AT/CT, ZFD400AT/CT) – User Manual
Mechanical Construction