L 3/30 ... ff
Low Voltage Surge Protective Device
ZOTUPLIMITER
L 3/30 ... ff is a voltage limiting SPD providing a single mode of protection, typically installed in Sub Distribution Boards (SDBs), in TN-systems or in TT-systems in combination with N-PE SPD model I 100, I 52 or I 12 and with connection type CT2 (1+1 or 3+1). It provides the following features and benefits:
- Impulse test classification: Test class II according to IEC 61643-11 Ed. 1 (2011-03) and Type 2 according to
EN 61643-11 (2012-10); - L 3/30 ... ff is a voltage limiting SPD, for the protection of low voltage installations and equipment against indirect lightning effects;
- Backup protection is not required with an upstream CB ≤ 160 A or up to an Isccr ≤ 5 kA rms (for UN 230/400 V);
- Short circuit current withstand of 50 kA rms with max. back-up fuse;
- Three colour Status Indicator with progressive indication of remaining performance.
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