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DEHN – Technical Definitions Voltage protection level U p The voltage protection level of a surge protective device is the maximum instantaneous value of the voltage at the terminals of a surge protective device, determined from the standardised individual tests – Lightning impulse sparkover voltage 1.2/50μs (100%) – Sparkover voltage with a rate of rise of 1 kV/μs – Measured limit voltage in case of nominal discharge current I n The voltage protection level characterises the capability of a surge protective device to limit surges to a residual level. If used in power supply systems, the voltage protection level defines the location of use with regard to the overvoltage category according to DIN VDE 0110- 1:2003-11 (DIN EN 60664-1, IEC 60664-1). For surge protective devices designed for use in IT systems, the voltage protection level has to be adapted to the immunity of the equipment to be protected (IEC 61000-4-5: 2001-12). Wave breaker function Due to the technical design of type 1 SPDs, energy coordination of SPDs considerably varies. Experience has shown that even small amplitudes of the 10/350 μs lightning impulse current overload downstream SPDs or even destroy them if varistor-based type 1 lightning current arresters are used. In case of sparkgap-based type 1 arresters, in contrast, virtually the total current is flowing through the type 1 arrester; the energy is reduced to an acceptable level. The benefit is that the time to half value of the 10/350 μs impulse current is reduced due to the reduction of the pulse time and the switching behaviour of SPD 1. This considerably relieves downstream SPDs (according to EN 62305-4:2006, section C.3.3). All devices of the DEHN + SÖHNE Red/Line and Yellow/Line product family are energy coordinated. Moreover, all type 1 arresters of the Red/Line family are based on spark gaps and thus feature this WAVE BREAKER FUNCTION. 10 www.dehn.de
Surge protection for POWER SUPPLY SYSTEMS SPDs for low-voltage installations and equipment www.dehn.de 11
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Page 3 and 4: Contents Page Our promise - DEHN pr
Page 5 and 6: DEHN protects Our family-owned comp
Page 7 and 8: DEHN - worldwide Algeria Argentina
Page 9 and 10: DEHN - Safety according to Specific
Page 11: DEHN - Technical Definitions Lightn
Page 15 and 16: Contents Easy Choice 15 Combined SP
Page 17 and 18: S-Schutz Easy Choice L1 L2 L3 N PE
Page 19 and 20: Easy Choice L1 L2 L3 N PE 3 A 1 Arr
Page 21 and 22: S-Schutz Easy Choice L1 L2 L3 N PE
Page 23 and 24: Easy Choice L1 L2 L3 PEN SPD Type 2
Page 25 and 26: ÜBERSPANNUNGSSCHUTZ DEFECT FUNCTIO
Page 27 and 28: Easy Choice of SPDs for Use on roof
Page 29 and 30: DEHN-FUNKENSTRECKEN-TECHNOLOGIE INS
Page 31 and 32: Combined SPDs - Type 1 DEHNventil
Page 33 and 34: DEHNventil ® modular DEHNventil M
Page 35 and 36: Protection Module for DEHNventil ®
Page 41 and 42: L L' N/PE(N) Combined SPDs - Type 1
Page 43 and 44: DEHNshield ® Combined SPDs - Type
Page 49 and 50: DEHNlimit PV 1000 V2 (FM) Combined
Page 51 and 52: Coordinated Type 1 Lightning Curren
Page 59 and 60: L L' Coordinated Type 1 Lightning C
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Accessory for Type 1 Arresters DEHN
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Coordinated Type 1 Lightning Curren
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DEHNsecure M DEHNsecure M 2P ... (F
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Type 1 Lightning Current Arresters
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Type 1 Lightning Current Arresters
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N-PE Lightning Current Arresters
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N-PE Lightning Current Arresters DE
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N-PE Lightning Current Arresters 30
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Type 2 Surge Arresters • Arrester
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S Type 2 Surge Arresters DEHNguard
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Type 2 Surge Arresters DEHNguard ®
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Type 2 Surge Arresters • Specific
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Type 2 Surge Arr. for Use in PV Sys
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Type 2 Surge Arresters for Use in P
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Type 2 Surge Arresters for Use in P
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S Type 2 Surge Arresters Protection
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Type 2 Surge Arresters • High dis
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Type 2 Surge Arresters • Surge ar
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Type 2 Surge Arresters V NH / VA NH
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Type 3 Surge Arresters • Two-pole
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Type 3 Surge Arresters DEHNrail mod
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Type 3 Surge Arresters DEHNrail mod
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Type 3 Surge Arresters • Protecti
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Type 3 Surge Arresters SPS Protecto
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Type 3 Surge Arresters DEHNsafe 31
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Type 3 Surge Arresters NSM Protecto
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Type 3 Surge Arresters STC Module 5
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Type 3 Surge Arresters DEHNflex DEH
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Type 3 Surge Arresters DEHNflex DEH
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12 11 L N 12 11 Type 3 Surge Arrest
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Type 3 Surge Arresters DEHNprotecto
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Type 3 Surge Arresters • Surge pr
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Type 3 Surge Arresters L/N SFL Prot
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General Accessory DEHNpanel • Vis
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General Accessory • Allows an EMC
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General Accessory Insulating Enclos
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General Accessory Busbars / Modular
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Surge protection for INFORMATION TE
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1 2 3 4 5 6 7 8 9 0 Contents Easy c
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Easy Choice according to Interface
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SPDs for Information Technology Sys
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LifeCheck ® SPD Test SPD diagnosti
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Pluggable DIN Rail Mounted SPDs •
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Pluggable DIN Rail Mounted SPDs BLI
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Pluggable DIN Rail Mounted SPD BLIT
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BLITZDUCTOR ® XT LifeCheck ® Modu
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Pluggable DIN Rail Mounted SPDs Acc
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Compact DIN Rail Mounted SPDs • M
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Compact DIN Rail Mounted SPDs DEHNc
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Compact DIN Rail Mounted SPDs Acces
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Compact DIN Rail Mounted SPDs BLITZ
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D P M P Compact DIN Rail Mounted SP
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SPDs for LSA Technology • Variabl
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SPDs for LSA Technology DEHNrapid
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SPDs for LSA Technology Accessories
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SPDs for LSA Technology • Suitabl
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SPDs for LSA Technology • Premoun
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SPDs for 482.6 mm (19 inch) Data Ca
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SPDs for RJ Connection • Patch ca
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SPDs for RJ Connection DEHNpatch DE
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SPDs for RJ Connection BLITZDUCTOR
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SPDs for RJ Connection • Surge ar
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Surface-Mounted SPDs • Combined l
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DEHNbox Surface-Mounted SPDs 93 54
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Surface-Mounted SPDs DEHNlink DLI I
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Surface-Mounted SPDs DEHNlink DLI T
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SPDs for Coaxial Connection • Plu
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SPDs for Coaxial Connection DEHNgat
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5-3000 MHz SPD No. 909 703 I N 2A U
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SPDs for Coaxial Connection Accesso
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SPDs for D-SUB Connection • Surge
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SPDs for D-SUB Connection FS / USD
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a1 b1 a2 b2 SPDs for Terminal Conne
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SPDs for Terminal Connection DSM DS
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SPDs for Terminal Connection BUStec
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DEHNpipe DEHNpipe arrester series f
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929 941 DPI MD 24 M 2S DPI MD 24 M
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Screwable SPDs Accessories for DEHN
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SPDs for Use in Potentially Explosi
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Accessory for Terminal Block System
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Combined Adapters • Surge protect
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909 310 DPRO 230 NT DPRO 230 NT 909
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909 321 DPRO 230 LAN100 DPRO 230 LA
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Lightning Equipotential Bonding Iso
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Lightning Equipotential Bonding Pip
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Lightning Equipotential Bonding Equ
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Lightning Equipotential Bonding Equ
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Measuring and Test Devices Conditio
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Measuring and Test Devices LifeChec
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Measuring and Test Devices SPD Test
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Measuring and Test Devices • SPD
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Information and Documentation Publi
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Literature IEC 61643-21:2009-04 Low
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Key to Symbols used in Basic Circui
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Part No. Index Part No. Type Page P
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Part No. Index Part No. Type Page P
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Type / Product Index Type Part No.
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Surge Protection Lightning Protecti
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