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DEHNbloc

  • Encapsulated non-exhausting creepage discharge spark gap
  • RADAX Flow spark gap technology with high follow current limitation
  • Energy coordination with other arresters of the Red/Line product family
  • Can also be used upstream of meter panels due to its high insulation resistance
  • Multifunctional terminal for connecting conductors and busbars
  • Single-pole and three-pole version (lightning impulse currents up to 100 kA depending on the system configuration)
  • Modular single-pole version also available

DEHNbloc H

Modular single-pole lightning current arrester with a high discharge capacity for use in 230 / 400 V systems.

1 Product

Part No. 961122 DBH M 1 255

GTIN 4013364118652, Customs tariff No. (EU): 85363090, Gross weight: 374.20 g, PU: 1.00 pc(s)

Images

Additional information

Modular DEHNbloc H M 1 255 lightning current arrester
Modular, pluggable and coordinated single-pole
lightning current arrester
with high follow current limitation, width: 2 modules
Type 1 SPD according to EN 61643-11
RADAX Flow spark gap technology
for follow current limitation
Fault indication
Max. continuous operating voltage: 255 V a.c.
Voltage protection level: <= 4 kV
Lightning impulse current (10/350 µs): 50 kA
Follow current extinguishing capability: up to 100 Arms
Energy-coordinated according to IEC 62305-4
with arresters of the Red/Line series

Brand: DEHN
Type: DBH M 1 255
Part No.: 961122
or equivalent.

Certificates

 

Wave breaker function

In the case of spark-gap-based type 1 arresters, the entire current flows through the type 1 arrester during the discharge process. Like a wave breaker, the incoming energy is greatly broken down, which significantly relieves the downstream SPDs. All type 1 arresters in the Red/Line product range feature the WBF wave breaker function.

Technical data

SPD according to EN 61643-11 / IEC 61643-11 type 1 / class I
Max. continuous operating voltage (a.c.) (UC ) 255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) (Iimp ) 50 kA
Voltage protection level (UP ) ≤ 4 kV
Max. backup fuse (L) up to IK = 50 kArms (ta ≤ 0.2 s) 500 A gG
Max. backup fuse (L) up to IK = 50 kArms (ta ≤ 5 s) 315 A gG

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