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DEHN DEHNshield DSH TT 2P 255 Type 1+2 single-phase surge arrester

DEHN DEHNshield DSH TT 2P 255 Type 1+2 single-phase surge arrester

€100.25
€100.25
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Delivery in 10-20 daysType 1+2Iimp 12.5kAUp 1.5kV2 DIN modulesDEHN

DEHN DEHNshield DSH TT 2P 255 Type 1+2 single-phase surge arrester

The DEHNshield DSH TT 2P 255 (part 941110) is the combined Type 1+2 arrester for the AC side of a single-phase supply, on TT and TN systems. It is prewired in a 1+1 configuration, so it takes only 2 modules in the board.

The technology is spark-gap based: it withstands a lightning current of Iimp 12.5kA on the L-N path and 25kA on the N-PE path, with a protection level of 1.5kV, one of the lowest in its class. Follow current extinguishing reaches 25kA rms and the response time is below 100 ns. Compliant with EN 61643-11, with KEMA and VDE certification.

Key strengths

Type 1 and Type 2 in oneA single device for direct lightning and induced surges.
Only 2 modulesPrewired 1+1: it takes very little room in the board.
Up 1.5kVA low protection level, suited to sensitive electronics too.
Spark-gap technologyNo leakage current at rest.
Response below 100 nsIt acts before the surge reaches the loads.
TT and TN systemsThe same device covers both single-phase systems.

Technical specifications

Feature Value
Product code DEHNshield DSH TT 2P 255 (941110)
Manufacturer DEHN
Type Combined Type 1+2 spark-gap arrester, single-phase
Grid type Single-phase TT and TN systems, 1+1 configuration
Maximum continuous operating voltage Uc 255V (50 / 60Hz)
Impulse current Iimp 12.5kA on L-N, 25kA on N-PE
Nominal discharge current In (8/20 µs) 12.5kA on L-N, 25kA on N-PE
Voltage protection level Up 1.5kV on L-N and N-PE; 2.0kV on L-PE
Follow current extinguishing Ifi 25kA rms on L-N, 100A rms on N-PE
Response time ≤ 100 ns
Mounting 35 mm DIN rail (EN 60715), 2 modules DIN 43880
Protection rating IP20
Operating temperature -40 ~ 80 °C
Weight 0,291 kg
Certifications EN 61643-11 / IEC 61643-11, KEMA, VDE

This version has no remote signalling contact: if you need one, the matching model is the DSH TT 2P 255 FM.