Dehn DSH Series 255 V ac Maximum Voltage Rating 12.5 kA, 50 kA Maximum Surge Current Lightning Arrester, DIN Rail

  • RS Stock No. 786-9345
  • Mfr. Part No. DSH TNS 255
  • Brand Dehn
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

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 surges are usually caused by lightning and can reach up to 6000V, with current surges of over 3000A. The maximum size of the voltage and current surges 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.

Specifications
Attribute Value
Suppressor Type Lightning Arrester
Maximum Voltage Rating 255 V ac
Mounting Type DIN Rail
Maximum Surge Current 12.5 kA, 50 kA
Series DSH
Length 72mm
Depth 72mm
Height 90mm
Dimensions 72 x 72 x 90mm
Minimum Operating Temperature -40°C
Maximum Operating Temperature +80°C
Available to back order for despatch 25/03/2020
Price Each
£ 589.00
(exc. VAT)
£ 706.80
(inc. VAT)
Units
Per unit
1 - 9
£589.00
10 - 19
£530.10
20 - 24
£477.09
25 - 49
£429.38
50 +
£386.44
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