ESN Type 8532/8533 Cable Monitoring Device

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