BXT ML4 BD 180 Surge Arrester

Brand: DEHN, Inc.

Space-saving combined lightning current and surge arrester module with LifeCheck feature for protecting two pairs of unearthed balanced interfaces. 

If LifeCheck detects thermal or electrical overload, the arrester has to be replaced. 

This status is indicated contactless by the DEHNrecord LC / SCM / MCM reader.
Features
  • LifeCheck SPD monitoring function
  • Optimal protection of two pairs
  • For installation in conformity with the lightning protection zone concept at the boundaries from 0A-2 and higher

Specifications

Brand

Approvals & Certifications

  • ATEX DEKRA 11-ATEX-0089 X: II 3 G Ex NA IIC T4 Gc
  • CE
  • CSA & USA Hazloc (2516389: Class I Division 2, GP A, B, C, D T4, Class I, Zone 2, AEx NA IIC T4)
  • GOST
  • IECEx DEK 11.0032X: Ex NA IIC T4 Gc
  • UL
  • VDS

Approvals & Certifications

  • IEC 61643-21, EN 61643-21, UL 497B
  • Up to SIL3

Capacitance

  • Capacitance Line-Line: ≤ 240 PF
  • Capacitance Line-PG: ≤ 16 PF

Current

  • C2 Total Nominal Discharge Current (8/20 µs): 20 KA
  • D1 Lightning Impulse Current (10/350 µs) Per Line: 2.5 KA
  • D1 Total Lightning Impulse Current (10/350 µs), C2 Nominal Discharge Current (8/20 µs) Per Line: 10 KA
  • Nominal Current at 45° C (113° F): 0.75 A

Enclosure, Body Material

  • Polyamide

Environmental Protection

  • IP20

Frequency

  • Cut-Off Frequency Line-Line: 25 MHz

Operating Temperature

  • -40° to 80° C (-40° to 176° F)

Operating Voltages

  • Maximum

Resistance

  • Series Resistance Per Line: 1.8 ohms

Voltage

  • Nominal Voltage: 180 V
  • Voltage Protection Level Line-Line at 1 kV/µs C3 (Uₚ): ≤ 250 V
  • Voltage Protection Level Line-Line for Iᵢₘₚ D1 (Uₚ): ≤ 270 V
  • Voltage Protection Level Line-PG for Iᵢₘₚ D1 (Uₚ) & at 1 kV/µs C3 (Uₚ): ≤ 550 V

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