Installation/Uninstallation
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– E350 series 2, 1-phase ZCF100Ax/Cx – User Manual
© Gyr
4.2
Connecting the Meter
Remove main fuses before connecting
The connecting wires at the place of installation must not be live when
fitting the meter. Touching live parts is dangerous to life. Remove the
corresponding main fuses and keep them in a safe place until work is
completed, so that they cannot be replaced by anyone unnoticed.
Provide overcurrent protection
For ZxF100xB meters: As the disconnector is not equipped with a thermal
and/or short circuit protection device, it needs to be protected with an
external fuse or overload switch.
For ZxF100xC meters: As the meter has no internal overcurrent protection
and no method of disconnection from the mains, this must be provided by
the end installation.
Connecting the phase and neutral connection line
1.
Shorten the phase and neutral connecting wire to the required length
and then strip them.
2.
Insert the phase and neutral connecting wire into the corresponding
terminals (the terminals are numbered as shown in the connection
diagram) and tighten the terminal screws firmly (max. torque 3 Nm).
It is recommended to identify the beginning and end of the relevant
conductors with a suitable test unit (e.g. buzzer) to ensure that the right
consumer is connected to the meter output.
Fig. 4.3 Meter connections
With small conductor cross-sections (e.g. 4 mm
2
) the connecting line must
be placed in the indentation (stamping) of the current loop, so that it cannot
shift sideways when tightening the terminal screws. Ensure that the
connecting line remains in the indentation when tightening.
Current loop conductors
Indentation (stamping) for smaller connection lines
Fig. 4.4 Cross-section through current loop conductors
