L 25/100 230 t ff 4
Low Voltage Surge Protective Device
ZOTUPLIMITER
L 25/100 230 t ff 4 is a ready to install assembly of four voltage limiting SPDs providing four modes of protection, typically installed at the origin of the installation, e.g. in the Main Distribution Board (MDB), for three-phase plus neutral 230/400 V TN-systems, 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); - L 25/100 230 t ff 4 s a voltage limiting SPD for the protection of low voltage installations and equipment against direct and indirect lightning effects;
- Backup protection is not required with an upstream CB ≤ 160 A or up to an Isccr ≤ 5 kA rms;
- The impulse current is divided into two independent branch circuits, each branch providing its own disconnector and Status Indicator;
- Three colour Status Indicator with progressive indication of remaining performance.
Data sheet L 25/100 230 t ff 4
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