DEHNbloc, Lightning Current Arrester

DEHNbloc coordinated Type 1 lightning current arrester series offers single-pole and three-pole versions for lightning impulse currents up to 100 kA, depending on the system configuration. Modular single-pole versions are also available. They are suitable for use upstream of meter panels due to their high insulation resistance. The DEHNbloc series, from DEHN, is an important component for surge and lighting protection to protect critical assets for manufacturers, industrial buildings, gas processing facilities, pipelines, and much more.

• encapsulated nonexhausting 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
• multifunctional terminal for connecting conductors and busbars

DEHNbloc Modular – Lightning Current Arrester Series

• discharge capacity up to 50 kA (10/350 µs)
• low voltage protection level
• no tripping of 32 A gG fuses up to short-circuit currents of 50 kArms
• directly coordinated with DEHNguard surge protective devices without additional cable length
• operating state, fault indication by green, red indicator flag in the inspection window
• easy replacement of protection modules without tools due to module locking system with module release button

961110 – DB M 1 150

Coordinated and modular single-pole lightning current arrester with a high discharge capacity.

• coordinated spark-gap-based lightning current arrester consisting of a base part and a plug-in protection module
• maximum system availability due to RADAX flow follow current limitation
• UL approval and CSA approval
• Nominal Voltage (AC) (UN): 120 V (50 / 60 Hz)
• Maximum Continuous Operating Voltage (AC) (UC): 150 V (50 / 60 Hz)
• Voltage Protection Level (UP): ≤ 1.5 kV

900016 – DBM 1 320

Coordinated single-pole lightning current arrester with high follow current limitation for UC = 320 V.

• encapsulated RADAX flow spark gap with high follow current limitation
• double terminals for series connection
• multifunctional terminal for connecting conductors and busbars
• Lightning Current Discharge Capacity: 20 kA (10/350 μs)
• Maximum Continuous Operating Voltage (AC) (UC): 320 V
• Voltage Protection Level (UP): ≤ 2.5 kV

900025 – DBM SN1500

Coordinated single-pole lightning current arrester with high follow current limitation for UC = 255 V. Available with operating state indicator (L).

• encapsulated RADAX Flow spark gap with high follow current limitation
• lightning current discharge capacity: 50 kA (10/350 μs)
• double terminals for series connection
• multifunctional terminal for connecting conductors and busbars
• Lightning impulse current (10/350 μs) [Iimp]: 50 kA
• Maximum Continuous Operating Voltage (AC) (UC): 255 V
• Voltage Protection Level (UP): ≤ 2.5 kV