Surge arrester KSD-T2 275V 40kA Kanlux Limiter overvoltage with varistors of class 2 (T2 / C): used to protect LV power supply systems from the effects of induced and connection overvoltages / in buildings without lightning protection systems and with cable connections, the limiter provides sufficient protection without the need for class 1 limiters (T1 / B).  Overvoltage protections class II, type 2 (group C). Surge arresters (SPD) type KSD-T2, type 2 class II, are manufactured according to EN61643-1. These type 2 surge arresters are designed to protect the low voltage installation from direct and indirect lightning strikes and grid connection surges. The limiters guarantee protection within zone 1-2 in compliance with the EN62305 standard. Basic information Brand: Ideal EAN13: 5905339231314  Vendor code: 23131  Place of use:  inside Weight and dimensions Weight:  44g Technical data Rated voltage [V]:   230 AC Nominal frequency [Hz]: 50/60 Modules: 1, 1 Maximum continuous working voltage Uc: 275V Maximum discharge current I: max  40kA Protection level Up: 1, 3 IPE residual current parameters: 30 µA  Transient voltage surge Itrans [kA]:   40 Expected short-circuit current lfi [A] RMS: 100  IP Grade 20 Security type: T2 (C) Operating temperature [° C]:  - 5 · 40 Air humidity:  5 · 95 Nominal discharge current In [kA]: 20 Connection type:  terminal block  Standards: PN-EN61643-1, PN-EN61643-1