IA 25 230 3+1
Low Voltage Surge Protective Device
ZOTUPGAP
IA 25 230 3+1 is a ready to install assembly of four voltage switching SPDs providing four modes of protection, typically installed in three-phase plus neutral 230/400 V TT-systems where connection type CT2 (3+1) is required according to HD 60364-5-534, e.g. in the Main Distribution Board (MDB), with the following features and benefits:
- Impulse test classification: Test class I and II according to IEC 61643-11 Ed. 1 (2011-03) and Type 1 and 2 according to
EN 61643-11 (2012-10); - IA 25 230 3+1 is a self extinguishing spark gap and GDT based switching SPD, for the protection of low voltage installations against direct and indirect lightning effects;
- Impulse discharge current (L-N) of 25 kA 10/350 µs;
- Impulse discharge current (N-PE) of 100 kA 10/350 µs;
- High self extinguishing capability of 16 kA rms (follow current interrupt rating L-N);
- Green LED Status Indicator;
- The special housing is designed for "Pollution Degree 3".
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