Multi-pole arrester with three-stage d.c. switching device for use in pv-systems

• Prewired modular complete unit for photovoltaic systems consisting of a base part and plug-in protection modules
  
• Combined disconnection and short-circuiting device with safe electrical isolation in the protection module prevents fire damage due to d.c.arcs
  
• Tried and tested fault-resistant Y-connection prevents damage to surge protective devices in case of insulation faults in the generator circuit
  
• Safe replacement of protection modules without arc formation due to integrated d.c. fuse

Detailed technical information DEHNguard^® M YPV SCI (FM)

Single-pole modular coordinated lighting current arrester

For protecting low-voltage consumer´s installations against surges even in case of direct lightning strokes. For use according to the lightning protection zones concept at boundaries 0_A – 1.

• Coordinated spark-gap-based lightning current arrester, consisting of a base part and plug-in protection module
  
• Maximum system availability due to RADAX Flow follow current limitation
  
• No tripping of 32 A gL/gG fuses up to short-circuit currents of 50 kArms
  
• Discharge capacity up to 50 kA (10/350 µs)
  
• Directly coordinated with DEHNguard surge protective devices without additional cable length
  
• Low voltage protection level
  
• Operating state/fault indication by mark in the inspection window
  
• Allows for easy replacing of protection modules due to module locking system with releasing button

Detailed technical information DEHNbloc^® M

Coordinated lightning current arrester for nominal voltages 400 V and 690 V

For protecting low-voltage consumer´s installations against surges, even in case of direct lightning strokes. For use in the lightning protection zones concept at boundaries 0_A – 1.

• Encapsulated non-exhausting spark gap
  
• High follow current extinguishing capability and follow current limitation due RADAX Flow technology
  
• Directly coordinated to DEHNguard surge protective devices without cable length
  
• Operating state/fault indication by mark in the inspection window

4-pole pluggable surge arrester

For protecting the power supply of industrial electronic devices in switchgear cabinets against surges.

• Four-pole surge arrester consisting of a base element and plug-in protection module
  
• High discharge capacity due to powerful zinc-oxide- varistor/spark-gap combination
  
• Energy-coordinated within the Red/Line product family
  
• Operating state/fault indication by mark in the inspection window
  
• Allows for easy replacing of protection modules without tools due to module locking system with releasing button
  
• Nominal load current 25 A

Detailed technical information DEHNrail M 4P

Surge arrester for socket outlets with earth contact

For protecting electronic devices against surges. For use with common socket outlets with earth contact.

• Two-pole surge protection with monitoring device and disconnector
  
• Maximum safety due to confusion-proof Y protection circuit
  
• Acoustic fault indicator with optional test function
  
• For attaching to common socket outlets with earth contact
  
• Independent from the designs of the socket outlets used
  
• Plastic supporting ring with latch for easy attaching to already mounted socket outlets

Detailed technical information STC-Module

Surge protective adapter

Adapters for protecting the power supply of electronic devices against the effects of transient overvoltages as well as high-frequency interference voltages (DEHNpro 230 F Protector).

• Surge protection with monitoring device and disconnector
  
• Visual operating state indication (green) and fault indication (red)
  
• Mains filter (for DEHNpro 230 F Protector only)
  
• Maximum safety due to confusion-proof Y protection circuit

Combined lightning current and surge arrester Type 1 for use in photovoltaic systems

For protecting photovoltaic inverters against surges even in case of direct lightning strokes. For use in accordance with IEC 60364-7-712:2002-05 (Installation of photovoltaic systems).

• Prewired combined lightning current and surge arrester for use in photovoltaic generator circuits
  
• For use in photovoltaic installations up to 1000 V U0C STC
  
• High lightning current discharge capacity due to approved spark gap technology
  
• Maximum system availability due to spark gap technology with d.c. current extinction

Detailed technical information DEHNlimit PV 1000

Isolating spark gaps

ATEX-certified isolating spark gap for lightning equipotential bonding according to IEC 62305 with low sparkover voltage.

• For indirect connection/earthing of functionally separate parts of installations when being affected by lightning
  
• Device for lightning equipotential bonding according to IEC 62305 in hazardous areas
  
• For bridging insulating pieces, insulating flanges etc. in cathodic protected pipe sections
  
• For safe application in explosion protection zone 1 (gases) or 21 (dust)
  
• Considerably low sparkover voltage
  
• Considerably high a.c. current withstand capability

Detailed technical information EXFS 100 / EXFS 100 KU