Current Transducer LF 205-S I = 200 A PN For the electronic measurement of currents: DC, AC, pulsed..., with galvanic isolation between the primary circuit and the secondary circuit. 16135 Features Electrical data Closed loop (compensated) I Primary nominal current rms 200 A current transducer using the Hall PN I Primary current, measuring range 0 .. 420 A effect PM R Measuring resistance T = 70C T = 85C Isolated plastic case recognized M A A R R R R according to UL 94-V0. M min M max M min M max with 12 V 200 A 0 71 0 69 max Advantages 420 A 0 14 0 12 max with 15 V 200 A 0 100 23 98 max Excellent accuracy 420 A 0 28 23 26 max Very good linearity I Secondary nominal current rms 100 mA SN Low temperature drift K Conversion ratio 1 : 2000 N Optimized response time V Supply voltage (+ 5 %) 12 .. 15 V C Wide frequency bandwidth I Current consumption 15 V 17 + I mA C S No insertion losses High immunity to external Accuracy - Dynamic performance data interference Current overload capability. X Overall accuracy I , T = 25C 0.5 % G PN A Linearity error < 0.1 % L Applications Typ Max I Offset current I = 0, T = 25C 0.2 mA AC variable speed drives and O P A 1) I Magnetic offset current I = 0 and specified R , servo motor drives OM P M after an overload of 3 x I 0.1 mA Static converters for DC motor PN I Temperature variation of I - 40C .. + 85C 0.12 0.4 mA drives OT O t Reaction time to 10 % of I step < 500 ns Battery supplied applications ra PN 2) t Response time to 90 % of I step < 1 s Uninterruptible Power Supplies r PN di/dt di/dt accurately followed > 100 A/s (UPS) BW Frequency bandwidth (- 3 dB) DC .. 100 kHz Switched Mode Power Supplies (SMPS) General data Power supplies for welding applications. T Ambient operating temperature - 40 .. + 85 C A T Ambient storage temperature - 40 .. + 90 C Application domain S R Secondary coil resistance T = 70C 33 S A Industrial. T = 85C 35 A m Mass 78 g Standards EN 50178: 1997 1) Notes: The result of the coercive force (Hc) of the magnetic circuit 2) With a di/dt of 100 A/s. Page 1/3 31October2011/version 16 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.comCurrent Transducer LF 205-S Isolation characteristics V Rms voltage for AC insulation test, 50/60 Hz, 1 min 3.5 kV d Impulse withstand voltage 1.2/50 s 8.8 kV V w V Partial discharge extinction voltage rms 10 pC > 2 kV e Min dCp Creepage distance 11 mm dCI Clearance 10.2 mm CTI Comparative Tracking Index (group IIIa) 175 Applications examples According to EN 50178 and IEC 61010-1 standards and following conditions: Over voltage category OV 3 Pollution degree PD2 Non-uniform field EN 50178 IEC 61010-1 dCp, dCI, V Rated insulation voltage Nominal voltage w Basic insulation 500 V 500 V Reinforced insulation 250 V 250 V Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturers operating instructions. Caution, risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a build-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Main supply must be able to be disconnected. Page 2/3 31October2011/version 16 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com