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LOR4140-2RLD Datasheet(PDF) 10 Page - Power-One |
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LOR4140-2RLD Datasheet(HTML) 10 Page - Power-One |
10 / 12 page SEP 09, 2005 revised to JUL 17, 2006 Page 10 of 12 www.power-one.com LOS, LOR, LOK4000 Series Data Sheet DIN-Rail Mountable AC-DC (DC-DC) Converters Under test conditions the leakage current flows through a measuring instrument (MI) as described in fig. Measuring instrument for earth leakage current tests, which takes into account impedance and sensitivity of a person touching accessible parts. The current value is calculated by dividing the measured voltage by 500 W. If inputs and/or outputs of LOS, LOR, or LOK models are connected in parallel, their individual leakage currents are added. Leakage Currents in AC-DC Operation Leakage currents flow due to internal leakage capacitance and RFI suppression Y-capacitors. The current values are proportional to the mains voltage and nearly proportional to the mains frequency and are specified at an input voltage of 264 V (50 Hz) where phase, neutral and protective earth are correctly connected as required for class I equipment. Fig. 11 Measuring instrument (MI) for earth leakage current tests according to IEC/EN 60950. Table 11: Leakage currents Characteristic LOK Unit Maximum earth Permissible according to IEC/EN 60950 3.5 mA leakage current Specified value at 264 V, 50 Hz 1.0 Maximum output Permissible according to IEC/EN 60950 0.25 leakage current Specified value at 264 V, 50 Hz 0.035 V MI 500 Ω 1500 Ω 10 k Ω 220 nF 22 nF MI for output leakage current Vo+ Vo- 10053 MI for earth leakage current L L N N Fig. 12 Test setup. |
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