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Connecting the Device
This describes connecting all data and power supply lines that are necessary for safe
operation.
In the case of electrical installation, follow the rules governing erection of power current
equipment.
Please observe the permissible bending radii of the optical fibre waveguide (manufacturer
data).
Bending cables to a smaller radius than the minimum bending radius can destroy the FO
fibres.
Auxiliary Power Connection
The contacts for the operating voltage are made via the terminals on the top of the device.
The assignment of terminals is to be found in this manual.
The operating voltage of the device must be protected with an external disconnection
device including a fuse and identified as such. The fuse selected must be suitable for the
cross-section of the connection wires or for the cubicle wiring. (For the fuse value, see the
Technical Data.)
Screw terminal connection
Minimum cross-section of the
wires for auxiliary voltage and
earth (ground)
Nominal conductor cross-section
Tightening torque
17 / 77
Warning
Always use wire end ferrules for stranded conductors.
Warning
Never look into fibre-optic waveguide elements or the ends of the
fibres.
Solid or stranded conductors with wire end ferrules
for conductor cross-sections 0.25 mm
The dielectric strength of the connecting wires must
be at least 300 V AC.
Stripping length:
1.5 mm
2.5 mm² , rigid conductor or with wire end ferrule
0.5 Nm
up to 8 mm
2
7XV5655-0BB00
2
2.
to 2.5 mm
C53000-G1176-C175-2
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