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Mechanical construction
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– E650 Series 4 – ZMD400AT/CT, ZFD400AT/CT – User Manual
In case the ZxD400 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.
Control inputs /
output contacts
Basic version:
3 control inputs
2 output contacts (solid-state relays)
Signal allocation and numbering of
terminals for free parameterisation
Figure 37. Connection diagram fixed control inputs/output contacts
Extension board
4200
Extension board 4200:
4 control inputs
2 output contacts (solid-state relays)
Signal allocation and numbering of
terminals for free parameterisation
Figure 38. Connection diagram extension board with 4 control inputs and 2 output
contacts
Extension board
4210
Extension board 4210:
4 active inputs
2 relay outputs 8 A
Signal allocation and numbering of
terminals for free parameterisation
Figure 39. Connection diagram extension board with 4 active inputs and 2 relay
outputs 8 A
Warning
Active Inputs: Only external contact required. Do not apply voltage!
