Power Quality Monitoring

▼Chapter 6Current transformer accessoriesVoltage tapsA fast voltage tap is often required for measurement tasks. With the ZK4S and ZK4B voltage taps, the tap can take place directlyfrom a copper rail.ZK4SColour: blackConnection measurement cable = 4mm 2Fuse: 250V 6,3AFor bus bars 4 - 15mmItem number: 10.11.525ZK4BColour: blueFor bus bars 4 - 15mmItem number: 10.11.526ZK4BZK4S▼1 set of voltage tapsConsisting of 3 x voltage taps ZK4S (item number 10.11.525) and1 x voltage tape ZK4B (item number 10.11.526)Item number: 10.11.527ZK4RIsolated Tool for fixing the taps1000V EN/IEC60900:2004Item number: 10.11.528Dimensional drawingsAll dimensions stated in these drawings are in mm.ZK4STechnical specificationMax operating voltageTest voltage/pulseI n max690V3kV/50Hz 6kV10AInsulation material class E (max 120°)Fuse typeShort-circuit resistance5x25mm (with alarm)10A SIBA DIN41576-210kA@400V/50HzProtection classIP20Environmental temperature -5...+40°C 1)Temperature increase on rails Max 75K 1)Primary connectionInterior Allen wrench Number 6Maximum rail thicknessHousingClamp materialZK4BM8 interior Allen screw15mm / 4mmPolyamide (PA6.6)Nickel plated brass1) Max temperature of primary rail 120°C (sum of environmental temperatureand temperature increase of the rail)175