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DEHN Surge Arrester Type 1 4-Pole BXT ML4 BD HF 5

DEHN Surge Arrester Type 1 4-Pole BXT ML4 BD HF 5
DEHN Surge Arrester Type 1 4-Pole BXT ML4 BD HF 5
R4,431
This Type 1+2 surge arrester provides lightning and surge protection for 230/400 V AC power systems, featuring spark gap technology and a 4-pole (3+1) configuration for TN-S and TT systems.AdvantagesCombined Type 1 and Type 2 protection in one device, high lightning impulse current discharge capabil... Read More
Stock 6 Code 3508240 Brand DEHN Model 920371 Warranty 2 Years

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Estimated delivery Tuesday, October 6
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This Type 1+2 surge arrester provides lightning and surge protection for 230/400 V AC power systems, featuring spark gap technology and a 4-pole (3+1) configuration for TN-S and TT systems.

Advantages

Combined Type 1 and Type 2 protection in one device, high lightning impulse current discharge capability of 25 kA per pole (10/350 µs), and follow current extinguishing capability up to 100 kA rms ensure reliable protection for critical installations.

Suitable for

  • Main distribution boards in residential and commercial buildings
  • Industrial power supply systems requiring lightning equipotential bonding
  • TN-S and TT earthing systems

Key specifications

  • Nominal voltage: 230/400 V AC
  • Max. continuous operating voltage: 255 V AC
  • Lightning impulse current (10/350 µs): 25 kA per pole, 100 kA total
  • Nominal discharge current (8/20 µs): 20 kA per pole
  • Voltage protection level: ≤ 1.5 kV
  • Mounting: 35 mm DIN rail
  • Degree of protection: IP20
  • Operating temperature: -40 °C to +80 °C

Recommendations

Install at the service entrance to protect downstream equipment from direct lightning strikes and switching surges.

Specifications
Brand
DEHN
Category
Surge Arrester
Certification
IEC 61643-11 / EN 61643-11
EAN
4013364109094
Model
BXT ML4 BD HF 5
MPN
920371
Product type
Surge Arrester
Weight
1.3 kg
Price history over the last 6 months
DEHN Surge Arrester Type 1 4-Pole BXT ML4 BD HF 5
Current
R4,431
Lowest
R4,417
Highest
R4,431
Change 24H
+R8   +0%
Week
—   
Month
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