Dehn, DSH Modular Surge Protector 255 V ac Maximum Voltage Rating 12.5kA Maximum Surge Current Lightning Arrester

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RS Stock No.:
786-9345
Mfr. Part No.:
DSH TNS 255
Brand:
Dehn
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Brand

Dehn

Suppressor Type

Lightning Arrester

Maximum Voltage Rating

255 V ac

Mounting Type

DIN Rail

Maximum Surge Current

12.5 kA, 50kA

Series

DSH

Length

72mm

Depth

72mm

Height

90mm

Dimensions

72 x 72 x 90mm

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

+80°C

COO (Country of Origin):
DE

DEHNshield Surge Arrester Modules


Application-optimised prewired combined lightning current and surge arrester for TN-S systems

Application-optimised prewired spark-gap-based combined lightning current and surge arrester
Space-saving arrester for compact and simply equipped electrical installations with reduced technical requirements
Capable of protecting terminal equipment
Also available in Ready to install encloseures with transparent covers protected to IP65


Surge Protection Devices, SPDs (DIN-rail)


Voltage surges, often referred to as spikes or transients are typically caused by switching of fluorescent lights, fuses blowing or nearby lightning activity. The worst voltage spikes are usually caused by lightning strikes and can reach up to 6000V, with current surges of over 3000A. The maximum size of the let-through voltage and current inrush depends on the location within the building's wiring system. BS7671: 2011 Amendment 1 Sections 443 and 534 cover risk assessment and provides guidance on protection of electronic equipment for installation engineers to follow. The fullest information on lightning and surge protection comes from the BSEN 62305 series of standards.

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