ESN Type 8901 Potential Protection Unit with Low Voltage Limiter

ESN

Product Code: Type 8901
Artikelnummer: 240130
Brand: ESN



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Description for ESN Type 8901 Potential Protection Unit with Low Voltage Limiter

Potential protection unit with low voltage limiter, surge arrester current monitoring and remote clearing functionThere are special problems with railways operating with DC power concerning contact and anti-corrosion protection and overvoltage protection (e.g. lightning) Technical data Dimensions WxHxD see figure Housing Polyester / Makrolon   HxWxD: 302x186x181mm Attachment Wall fastening brackets   Mast attachment (as accessory,   Part No. 240110) Type of protection IP 55 Ambient temperature -20°C to +70°C Low-Voltage-Limiter type 8961 Trigger value 120V  (bidirectional) Shock loading ? 60kA (8/20 ?s standard puls) Resistance to short- ? 5 kA for max. 250ms circuits   Current sensor type 8546 Trigger value ? 15 A (polarity-independent) Supply voltage DC 24 V (18 - 30VDC) Load-Output 1 electronic output   voltage:       24VDC   load current: max. 200mA   output will be clamped until reset Function display two light emitting diodes (LED‘s)   green LED: power on   orange LED: switched on Reset Input 24VDC, reset output Connections   Supply voltage ? 1,5 mm2 Load-Output ? 1,5 mm2 Reset Input ? 1,5 mm2 Earthing potentials Threaded bolt M16 Ordering information Type Part No. type 8901, 240130 with low voltage limiter,   surge arrester and   current sensor  

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