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