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JKMmoulded case circuit breaker JKMseries is one of the most advanced type breakers in the world, which adopt international advanced design and manufacture technology. They are suitable for short circuit and overload protection for circuit of AC 690V,50/60HZ, rated current from 12.5 to 630 A. It is rated insulation voltage is 690V. It can make and break non-frequent,breaking off working and protecting overload ,short circuit and under voltage. Itcon-forms to IEC60947-2 standard. TypeRated current (A)Polenum-berRatedinsui-atingvolt-age(V)Rated operat-ingvolt-age(V)Arcing- over distance (mm)Ultimate short circuit breaking capacity (KA)Servies short circuit breaking capacity (KA)Operation perform- anceUtiliza-tioncat-egoryLoadUnloadJKM2-63L(6),10 16,20 25 ,32 40,50 633, 4500V400V0251815008500AJKM2-63M05035JKM2-100L(10),16 20,25 32,40 50,63 80,100800V0(≤50)3522JKM2-100M0(≤50)5035JKM2-100H0(≤50)855010007000JKM2-225L100,125 160,180 200,225≤503522JKM2-225M≤505035JKM2-225H≤50855010004000JKM2-400L225,250 315,350 400≤505035JKM2-400M≤1006542JKM2-630L400,500 630≤1005035JKM2-630M≤1006542JKM2-630H≤10010065JKM2-800M630,700 8003≤1007550JKM2-800H≤10010065JKM2-1250M1000,1250≤10010065JKM2-1250H≤1001255