Modular devices

MiniaOvervoltage protectionsCOMBINED LIGHTNING CURRENT AND SURGE VOLTAGE ARRESTERS - TYPE 1 + TYPE 2 +For protection of electric networks and equipment againstovervoltage from direct or indirect lightning strokesin the arresting equipment of buildings, LV lines etc.For protection against overvoltage caused by atmosphericdisturbances and from switching processesin networks.For protection of common wiring in apartments,houses, commercial buildings etc.It reduces voltage and „cut up“ the overvoltage wavepower caused by direct or indirect lightning strokeand or switching processes in the networks.Use: as the first stage (coarse protection) and the secondstage (medium protection) in three degree scale ofprotection against overvoltage – type 1 and type 2according to EN 61643-11.For further information on OEZ offer of overvoltage protectionsee „Overvoltage protections – Applicationmanual”.Lightning current and surge voltage arresters SJBC-25E-...Lightning current and surge voltage arresters designed Remote and visual signalling of the shut-down devicefor building, residential, commercial and other similarstate (after disconnection the lightning current arresterinstallations classed in group „big installation threat“.is non-functional and the replaceable module must beFor four-wire TN-C network, use SJBC-25E-3-MZS, and forreplaced).five-wire TN-S, TT network use SJBC-25E-3N-MZS. The modules can be turned in their base by 180°, soMain components are an enclosed spark gap withthat it is also possible to turn the whole device whileelectronic ignition release (T1) able to arrest lightningkeeping legibility of description (e.g. at connectioncurrent up to 25 kA (10/350 μs) and a parallel varistorfrom the top).(T2) with quicker reaction time (25 ns).Lightning current and surge voltage arresters SJBC-25E-...Ability of quenching of follow short-circuit currentreplace the connection of overvoltage protectionsup to 25 kA without the ionized gas.of the 1st and 2nd type installed in series next to eachPossibility of mounting in casual distribution boardsother, shown in the catalogue Modular devices Miniaand switchboard cabinets Distri.(N1-2008-A). The replacements are shown in detailsDesign: multipart, consisting of a base and replaceablein the conversion table at the end of the chapter.modules. The modules can be removed in caseof measurement or failure without necessity of devicedisconnection.Network Type Product Number Weight Packagecode of modules [kg] [pcs]TN-C (3L + PEN) SJBC-25E-3-MZS 38361 6 1.04 1TN-S (3L + N + PE) SJBC-25E-3N-MZS 38362 8 1.43 1AccessoriesTerminal extensions AS-.., CS-FH000.., N3x10-FH000 page E57D8