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ESN Type 8900 Potential Protection Device

ESN Type 8900 Potential Protection Device

BRAND : ESN

Special problems are encountered in DC-operated rail ways when it comes to contact and corrosion protection. On the one hand, electrical DC should be kept out of con tact with the ground as far as possible to avoid cor ro sion, on the other hand.

Technical Data

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Description

Description

Details

Technical Data
Dimensions	W / H / D see drawing
Housing	Polyester / Makrolon
Attachment	Wall attachment straps
Protection	IP 55
Ambient temp.	-20°C to +70°C
Voltagelimiting device	type 8961
Trigger value	120 V + 20% (bi-directional)
Transient load	see Data sheet part no. 250150
Short-circuit-load	see Data sheet part no. 250150
Monitoring unit Type	type 853800
Power supply	AC 230 V
Power consumption	approx. 3 VA
Measuring input	approx. 1 M?
Adjustment	programing
Output contact	1 change-over contact (potential-free)
	trigger-delayed approx. 1 min to 108 h
	voltage current
	AC 250 V 4.0 A (cos? > 0.7)
	DC 110 V 1.0 A (ohmic)
Displays	by LED
Connections
Power supply	? 4 mm²
Message contact	? 4 mm²
Earth potential	threaded bolt M16
Ordering Information
Type 8900	Order No. 240100