The potential monitoring device nType 8535 monitors potential diff erences, e.g. between the negative and the grounding conductors in grounded DC railway systems or between the neutral and the grounding conductors to protect against inadmissibly high and dangerous contact voltage.
Technical Data
Dimensions
W / H / D 60 / 70 / 110 mm
Housing
Polystyrene
Mounting
2 bore holes
per DIN 43604 or
standard support rail per
DIN EN 50022
Protection Class
Housing: IP 30; Terminals: IP 20
Housing completely cast up to the
terminals
Ambient temp.
-20ºC to +70ºC
Control voltage UE
Threshold value: 24 V AC/DC
± 30% (polarity-independent)
Overvoltage protection
Max. 1000 V (peak value)
Power input
Approx. 2.5 W
Operating voltage
= Control voltage
Threshold time lag
max. 2.5 ms
(with UE ?
50 V)
Operating circuit
break contact (bistable and zero
potential)
Switching voltage
max. 1000 V
DC
Switching current
max. 3 A
Steady current
max. 3 A
Switching capacity
max. 100 W / VA
Reset
Mechanical, only through integrated
acknowledge key (Reset)
Electrical strength
Input –
Output = 6000 V
Ordering Information
Type
Order No.
8535, threshold voltage
210200
24V
8535, threshold voltage
210202
90V
