ESN Type 8901 Potential Protection Unit with Low Voltage Limiter

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ESN Type 8901 Potential Protection Unit with Low Voltage Limiter

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Brand:

ESN

Product Code:

Type 8901

Order Processing & Delivery Information:
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Product Documentation/Technical Datasheet

esn-type-8901-potential-protection-unit-with-low-voltage-limiter-377787.pdf

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Details:

Artikel: 240130

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