RK2681/2 ispitivač izolacije serije
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RK2681N/ RK2681an/ RK2682N ispitivač izolacije
RK2681N: 100Kω-5TΩ 10/25/50/100/250/500V
RK2681AN: 100Kω-10TΩ 10/50/100/250/500/1000V
RK2682N: 500kω-2GΩ 500 /1000V
RK2681N: 100Kω-5TΩ 10/25/50/100/250/500V
RK2681AN: 100Kω-10TΩ 10/50/100/250/500/1000V
RK2682N: 500kω-2GΩ 500 /1000V