Lightning arrester based on the B+C spark gap 4P 30kA SIMTEC SI50B+C - 85205003

• Electrical Parameters:
• Rated voltage AC (Un): 230V
• Pulse current Iimp (10/350μs) [L,N-Pe]: 12.5 total
• [L1+L2+L3+N-Pe]: 50 kA
• Rated discharge current - 8/20 μs (In): 30 kA
• Max. discharge current (Imax): 60 kA
• Voltage protection level: ≤ 1.5 kV
• Operating time (TA): ≤ 25 ns
• Permissible humidity (Rh): 5-95%
• Insulation resistance (Risol): > 10 3 MΩ
• Max. additional fuse gL/gG: 1
• Frequency: 40 ... 63 Hz
• Remote control fault indication
• Compliance with standards: EC 61643-11:2012 (PN-EN 61643-11:2013-06)

• Mechanical Parameters:
• Connected cable cross-section:
• Rigid: 2.5 ... 35 mm²
• Flexible: 2.5 ... 35 mm²
• Housing material: PA66 UL 94V-0, gray color
• Installation: 35 mm rail EN 60715
• Operating temperature range: TU -40°... +85°C
• Protection level: IP20
• Thermal disconnect device: yes
• Remote signaling cable cross-section: maximum cable 1.5 mm², wire rope

Two-stage lightning arrester type 1 + 2 used to dynamically manage supply installations due to atmospheric over-voltages and for protection against internal over-voltages in the power supply network. It is mainly used in LV installations such as residential and office buildings. It is installed in cable plugs or main distribution boards.