DB M 1 255 Current Arrester

Brand: DEHN, Inc.

Coordinated modular single-pole lightning current arrester with high follow current limitation.

Specifications

Brand

Approvals & Certifications

  • SPD According to EN 61643-11 (Typical 1)
  • SPD According to IEC 61643-11 (Class I)

Approvals & Certifications

  • CE
  • KEMA
  • UL
  • VDE

Current

  • Follow Current Limitation/Selectivity: No Tripping of a 32 A GL/gG Fuse up to 50 KAᵣₘₛ (Prospective)
  • Lightning Impulse Current (10/350 µs) (Specific Energy [W/R]: 625 KJ/ohms), Nominal Discharge Current (8/20 µs), Follow Current Extinguishing Capability AC (rms): 50 KA
  • Limitation/Extinction of Mains Follow Current: 0-100 KAᵣₘₛ (200 KAₚₑₐₖ)
  • Maximum

Electrical Connectors

  • Cross-Sectional Area: 10 mm² Solid/Flexible Minimum [L/N, L'/N', N/PE(N)]
  • Cross-Sectional Area: 50 mm² Stranded / 35 mm² Flexible, Maximum

Enclosure, Body Material

  • ThermoPlastic

Environmental Protection

  • IP20

Indication

  • Fault Indication / Operating State: Red/Green

Materials of Construction

  • 50 mm² Stranded: Copper

Mounting

  • 1.37" (35 mm) DIN Rails According to EN 60715

Operating Temperature

  • Parallel Connection: -40° to 80° C (-40° to 176° F)
  • Serial Connection: -40° to 60° C (-40° to 140° F)

Operating Voltages

  • Maximum

Response Time

  • ≤ 100 Nanoseconds

Voltage

  • Temporary Overvoltage (TOV) - Characteristic: 440 V / 5 seconds - Withstand
  • Voltage Protection Level: ≤ 2.5 kV

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