Lightning Surge Arrester, Type 1/2/3, Three Phase

• Type 1: Class I, Type 2: Class II & Type 3: Class III
• DIN Rail Mountable
• Simple to install
• Maximum continuous operating voltage – 255V ~ (N-PE) 275V ~ (L-N)
• Impulse discharge current (10/350μs) – 12.5kA (L-N); 50kA (N-PE)
• Nominal discharge current (8/20μs) – 25kA (L-N) 50kA (N-PE)
• Maximum discharge current (8/20μs) – 50kA
• Voltage protection level at I_n – <1.25kV (L-N) <1.3kV (N-PE)

The SPA105/T1 is a Type 1/2/3 lightning arrester according to BS EN 61643-11. This surge protection device is recommended for use in the lightning protection zones concept at the boundaries of LPZ 0-1 for lightning current equipotential bonding and elimination of switching surges that originate in power supply systems entering the building. The main use of this surge protection device is for structures of LPL III to IV. This surge protection device is mainly intended for use in TNS, TNC-S or TT systems.