MAIN CHARACTERISTICS range of product PRD1 product or component type CARTRIDGE device short name C1 25-350 surge arrester type ELEC DISTRIBUTION NETWORK COMPLEMETARY CHARACTERISTICS surge arrester class type TYPE 1 surge arrester technology SPARK GAP earthing system TN [Ue] rated operational voltage 230 V AC 50 HZ nominal discharge current 25 KA [Uc] maximum continuous operating voltage 350 V [Up] voltage protection level 1.5 KV TYPE 1 [If] follow current 25 KA local signalling FLAG COLOR WHITERED mounting mode PLUG IN mounting support INTO SPD MODULE 9 mm pitches 2.5 height 50 MM width 23 MM depth 57 MM colour ANTHRACITE GREY RAL 7016 material PBT response time < 100 NS market segment SMALL COMMERCIAL