Landis+Gyr E650 Series User Manual page 44

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Connecting the signal inputs and outputs
Maximum current at auxiliary terminals
The circuits connected to the auxiliary terminals must be built in such a way
that the maximum current is never exceeded, as this might damage the
meter.
Maximum current of the voltage outputs: 1 A.
Maximum current of the output contacts: 100 mA.
Use fuses or protective relays between external and internal circuits to
avoid defects and a possible exchange of the meter.
1. Shorten the connecting wires of the signal inputs and outputs to the
required length and strip them for approx. 4 mm (wires and strands up
to 2.5 mm² can be connected).
Use ferrules with stranded wires
If stranded wire is used, provide it with ferrules for connection.
2. Connect the connecting wires of the signal inputs and outputs as
follows to the screwless spring-loaded terminals (the terminals are
numbered as shown on the connection diagram):
– Insert a size 1 screwdriver in the upper opening and insert it turning
slightly upwards (figure 46 A).
– Now place the stripped connecting wire in the lower opening and
hold it there securely (figure 46 B).
– Withdraw the screwdriver. The connecting wire is then firmly fixed
(figure 46 C).
Figure 46. Connection in screwless spring-loaded terminals
Bare end of connecting wire must not be too long
The insulation of the connecting line must extend as far as the terminal
indentation, i.e. there must be no further bare part of the connecting line
visible above the terminal edge (as shown in figure 46 C). Touching live
parts is dangerous to life. The stripped part of the connecting wire should
be shortened if necessary.
Only one wire or ferrule per terminal
Only one wire or ferrule with strand(s) may be connected in screwless
spring-loaded terminals. The terminal could otherwise be damaged or the
contact not properly made.
D000030108 en m – E650 Series 3 – ZMD300AT/CT – User Manual
Installation and uninstallation