Current Transducer LAH 50-P I = 50 A PN For the electronic measurement of currents : DC, AC, pulsed ..., with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). Electrical data I Primary nominal r.m.s. current 50 A Features PN 1) I Primary current, measuring range 0 .. 110 A P R Measuring resistance @ T = 70°C T = 85°C · Closed loop (compensated) current M A A R R R R transducer using the Hall effect M min M max M min M max · Printed circuit board mounting with ± 12 V @ I [± A ] 0 221 0 214 W PN DC · Insulated plastic case recognized 2) @ I [A ] 0 115 0 108 W PN RMS according to UL 94-V0. with ± 15 V @ I [± A ] 0 335 0 327 W PN DC 2) @ I [A ] 0 195 0 188 W PN RMS Advantages I Secondary nominal r.m.s. current 25 mA SN K Conversion ratio 1 : 2000 N · Excellent accuracy V Supply voltage (± 5 %) ± 12 .. 15 V C · Very good linearity I Current consumption 10 (@ ± 15V) + I mA S C · Low temperature drift V R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn 5 kV d · Optimized response time V R.m.s. voltage for partial discharge extinction @ 10 pC > 2 kV e · Wide frequency bandwidth V Impulse withstand voltage 1.2/50 µs > 12 kV w · No insertion losses Accuracy - Dynamic performance data · High immunity to external interference 3) X Accuracy @ I T = 25°C ± 0.25 % PN, A · Current overload capability. e Linearity < 0.15 % L Typ Max Applications I Offset current @ T = 25°C ± 0.15 mA O A I Residual current @ I = 0, after an overload of 5 x I ± 0.10 ± 0.15 mA OM P PN · AC variable speed drives and servo I Thermal drift of I 0°C .. + 70°C ± 0.10 ± 0.30 mA OT O motor drives - 25°C .. + 85°C ± 0.10 ± 0.40 mA · Static converters for DC motor drives t Reaction time @ 10 % of I < 200 ns · Battery supplied applications r a PN 4) t Response time @ 90 % of I < 500 ns · Uninterruptible Power Supplies r PN di/dt di/dt accurately followed > 200 A/µs (UPS) f Frequency bandwidth (- 1 dB) DC .. 200 kHz · Switched Mode Power Supplies (SMPS) General data · Power supplies for welding T Ambient operating temperature - 25 .. + 85 °C A applications. T Ambient storage temperature - 40 .. + 90 °C S R Secondary coil resistance @ T = 70°C 135 W S A @ T = 85°C 142 W A Insulating material group I m Mass 22 g 5) Standards EN 50178 1) Notes : For 10 s, with R £ 71 W (V = ± 15 V) M C 2) 50 Hz Sinusoidal 3) Without I & I O OM 4) With a di/dt of 100 A/µs 5) A list of corresponding tests is available. 010822/5 LEM Components www.lem.com Dimensions LAH 50-P (in mm. 1 mm = 0.0394 inch) Bottom view Left view Front view Secondary terminals Connection IN Terminal M : measure Terminal + : supply voltage + 15 V OUT Terminal - : supply voltage - 15 V Number Primary current Nominal Turns Primary Primary insertion of primary nominal maximum output current ratio resistance inductance turns I [ A ] I [ A ] I [ mA ] K R [ mW ] L [ µH ] PN P SN N P P 1 50 110 25 1 : 2000 0.12 0.008 Mechanical characteristics Remarks · General tolerance ± 0.2 mm · I is positive when I flows from terminals "IN" to terminals S P · Fastening & connection of primary 6 pins 1.4 x 1 mm "OUT". Recommended PCB hole 2 mm · This is a standard model. For different versions (supply · Fastening & connection of secondary 3 pins 0.7 x 0.6 mm voltages, turns ratios, unidirectional measurements...), Recommended PCB hole 1.2 mm please contact us. LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.