19
isoHV425_D00082_02_Q_DEEN /05.2018
Fig. 6.1: Dimension diagram of isoHV425 (all dimensions in mm)
Wiring diagram
Connect terminals "A1" and "A2" to the supply voltage
U
s
according to
IEC 60364-4-43, i.e. the connections are to be protected against short-circuit
by means of a protective device (a 6 A fuse is recommended). Devices for pro-
tection against short-circuit in conformity with IEC 0100-430 for the connec-
tion of terminals "L1/+"/"L2/-" to the IT system to be monitored can be
omitted if the wiring is carried out in such a manner as to reduce the risk of a
short-circuit to a minimum. Only one ISOMETER® may be controlled via an
T/R (Test/Reset)
button. A parallel connection of several test or reset inputs for
testing multiple ISOMETER®s is not allowed.
93
45
67.5
36
31.1
47.5
74.5
2
2
2
1
3
Click
