The cable monitoring device is suitable for monitoring cable systems for supplying the traction current to direct current railways and O-buses with rated voltages of up to 750 V (other voltages on request).
Material
Housing: ABS / terminals: polycar-
bonate
Fastening
2 screws M4 or M5, or standard
support
rail DIN EN 50022
Ambient temp.
20°C to +60°C
Auxiliary voltage
DC 24 – 60 V (via
internal switching-
mode power supply)
Power consumption
approx. 5 W (incl. display)
Fuses
0.5 A medium-slow acting (external)
Traction voltage
Positive potential at contact line
Un DC 500-900 V
? 8532 --
Negative potential at contact line
? 8533 --
Power consumption
approx. 1 W
Fuse
approx. 35 mA medium-slow acting
(external)
Shield voltage
approx. 40 V
(at DC 750 V)
Switching points
adjustable insulation defects
Conductor-shield
350 – 1500 k
(I)
Shield-earth
10 – 400 k
(E)
Switching on delay
auxiliary voltage
approx. 10 s traction voltage approx. 2 s
Response delay
„I“ internal fault approx. 2 s,
„E“
earth fault approx. 15 s
Test buttons
separate for „I“ internal fault and
„E“
earth fault
Outputs
1 potential-free closing contact each
operation = idle current operation
earth
fault = working current
mode
2 separate potential-free closing
contacts
internal fault = working current
mode
Switching
AC 11 as per
VDE 660 T2
Voltage
max. DC 120 V
/ AC 250 V
Current
max. 5 A at
AC 230 V
Power
max. 120 W / 1250 VA
Version
without shield interruption monito- ring ? 853- 00
with shield interruption monitoring
(as
“I“ internal fault) 853- 10
with shield interruption monitoring
(as
“E“ earth fault) 853- 20
Displays (integrated)
by means of LEDs
„operation“ 0 yellow, „I and E fault“
=
red
