DSH TN 255 Current & Surge Arrester

Brand: DEHN, Inc.

Application-optimized and prewired combined lightning current and surge arrester for single-phase TN systems.

Specifications

Brand

Approvals & Certifications

  • SPD According to EN 61643-11 (Typical 1 + Typical 2)
  • SPD According to IEC 61643-11 (Class I + Class II)

Approvals & Certifications

  • CE
  • KEMA
  • UL
  • VDE

Current

  • Follow Current Limitation/Selectivity: No Tripping of a 32 A GL/gG Fuse up to 25 KAᵣₘₛ (Prospective)
  • Lightning Impulse Current (10/350 µs) (Specific Energy [W/R]: 156.25 KJ/ohms) [L+N-PE] & Follow Current Extinguishing Capability AC (rms): 25 KA
  • Lightning Impulse Current (10/350 µs) [L, N-PE]: 12.5 KA (Specific Energy [L, N-PE] (W/R: 39.06 KJ/ohms)
  • Maximum
  • Nominal Discharge Current (8/20 µs) [L/N-PE]/[L+N-PE]: 12.5 KA/25 KA

Electrical Connectors

  • Cross-Sectional Area [L, N, PE, Ground]: 1.5 mm² Solid/Flexible Minimum
  • Cross-Sectional Area [L, N, PE, Ground]: 35 mm² Stranded / 25 mm² Flexible, Maximum

Enclosure, Body Material

  • ThermoPlastic

Environmental Protection

  • IP20

Indication

  • Fault Indication / Operating State: Red/Green

Mounting

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

Operating Temperature

  • -40° to 80° C (-40° to 176° F)

Operating Voltages

  • Maximum

Response Time

  • ≤ 100 Nanoseconds

Voltage

  • Nominal Voltage: 230 Vac (50/60 Hz)
  • Temporary Overvoltage (TOV) [L-N] - Characteristic: 440 V / 120 minutes - Withstand
  • Voltage Protection Level [L-PE] / [N-PE]: ≤ 1.5 kV

Show More