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Instantly add the DSH TT 2P 255 Current & Surge Arrester and 50,000+ more product series to your store or catalog  
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DEHN Current and Surge Arrester, DSH TT 2P 255

DSH TT 2P 255 Current & Surge Arrester

Brand: DEHN, Inc
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Application-optimized and prewired combined lightning current and surge arrest for single-phase TT and TN-S systems ("1+1" circuit).
Features
  • Application-optimized and prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester
  • Space-saving arrester for compact and simply equipped electrical installations with reduced technical requirements
  • Capable of protecting terminal equipment

Specifications

Brand

Approvals & Certifications

  • CE
  • KEMA
  • UL
  • VDE

Approvals & Certifications

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

Current

  • Follow Current Extinguishing Capability [L-N] / [N-PE]: 25 KAᵣₘₛ / 100 Aᵣₘₛ
  • Follow Current Limitation/Selectivity: No Tripping of a 32 A GL/gG Fuse up to 25 KAᵣₘₛ (Prospective)
  • Lightning Impulse Current (10/350 µs) [L+N-PE]: 25 KA (Specific Energy [L+N-PE] (W/R): 156.25 KJ/ohms)
  • Lightning Impulse Current (10/350 µs) [L-N]/[N-PE] & Nominal Discharge Current (8/20 µs) [L-N]/[N-PE]: 12.5 KA/25 KA (Specific Energy [L-N]/[N-PE] (W/R): 39.06 KJ/ohms/156.25 KJ/ohms)
  • Maximum

Electrical Connectors

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

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
  • Temporary Overvoltage (TOV) [N-PE] - Characteristic: 1,200 V / 200 milliseconds - Withstand
  • Voltage Protection Level [L-N] / [N-PE]: ≤ 1.5 kV

Documentation

Data Sheets

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