5.6 Electrical connection
5.6.1 Power supply
The device can be connected in a TN / TT network. The
device can only be connected in an IT network under the
following conditions:
Connection to a 230 / 400 V IT network is not permit-
ted.
Connection to an IT network with 230 V external line
voltage over a residual current circuit breaker is per-
missible, provided that the maximum contact voltage
does not exceed 50 V AC when the first error occurs.
1
2
Fig. 7: Power supply connection
f Strip the supply line.
f Strip conductors (1) 10 mm.
f Connect the conductors to the terminals (2) in accord-
ance with the terminal labels.
Three-phase operation: Use terminals L1, L2, L3, N and
PE.
Single phase operation: Use terminals L1, N and PE.
f Comply with the connection data of the terminals.
Î "4. Technical data"
14
When routing the supply line, observe the per-
missible bending radius.
f Check whether the individual cores are properly con-
nected and that the screws are firmly tightened.
5.6.2 Switching contact
T
T
DANGER
Risk of electric shock due to unsafe isolation
If the external switching contact is not safely isolated form
active electrical equipment, touchable component can be
under voltage. This can result in serious injury or death
caused by electric shock.
f Install and connect the external switching contact safe-
ly isolated from active electrical equipment, for exam-
ple, by routing a separate insulated cable (NYM).
Fig. 8: Connecting an external switching contact
f Strip the cable.
f Strip the conductors 10 mm.
f Connect the conductors to the terminals in accordance
with the terminal labels.Use terminals 1 and 2 for this
purpose.