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| Current Transducer HXS 50-NP For the electronic measurement of currents : DC, AC, pulsed, mixed, with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). IPN = 12.5 - 25 - 50 A All Data are given with a R L = 10 k Electrical data IPN IP VOUT VREF Primary nominal r.m.s. current Primary current measuring range Analog output voltage @ IP IP = 0 Internal Reference 1) - Output voltage VREF Output impedance VREF Load impedance Output load resistance Output impedance Max. output capacitive load Supply voltage ( 5 %) Current consumption @ VC = 5 V 50 A 150 A VREF (0.625*IP/IPN) V VREF 0.0125 V 2.5 0.025 V typ. 200 200 k 2 k < 10 <1 F 5 V 22 mA Features * Hall effect measuring principle * Multirange current transducer through PCB pattern lay-out * Galvanic isolation between primary * Isolation test voltage 3500V * Low power consumption * Extremely low profile, < 11mm * Single power supply +5V * Fixed offset & gain * Insulated plastic case recognized according to UL 94-V0. and secondary circuit RL ROUT CL VC IC Accuracy - Dynamic performance data Accuracy 2) @ IPN , TA = 25C L Linearity error 0 .. IPN .. 3 x IPN TCVOUT Thermal drift of VOUT @ IP = 0 TCVREF Thermal drift of VREF TCVOUT / VREF Thermal drift of VOUT / VREF @ IP = 0 TCG Thermal drift of the gain VOM Residual voltage @ IP = 0, after an overload of 3 x IPN DC t ra Reaction time @ 10 % of IPN tr Response time @ 90 % of IPN di/dt di/dt accurately followed Vno Output noise (DC ..10 kHz) (DC .. 1 MHz) f Frequency bandwidth (-3 dB) 3) X 1 0.5 1 0.4 0.01 0.2 % of IPN % of IPN % of IPN mV/K %/K mV/K % of IPN s s A/s mVpp mVpp kHz Advantages * Small size and space saving * Only one design for wide current * High immunity to external * Internal & external reference interference. ratings range 0.05% of reading/K <1 <3 <5 > 50 < 20 < 40 DC .. 50 Applications * AC variable speed drives * Static converters for DC motor drives * Battery supplied applications * Uninterruptible Power Supplies * Switched Mode Power Supplies (UPS) (SMPS) General data TA TS m Ambient operating temperature Ambient storage temperature Mass Standards - 40 .. + 85 C - 40 .. + 85 C 10 g EN 50178 (97-10-01) * Power supplies for welding applications. Application Domain * Industrial Notes : It is possible to overdrive VREF with an external reference voltage between 2 - 2.8 V providing its ability to sink or source approximately 2.5 mA. 2) Excluding offset and hysteresis. 3) Small signal only to avoid excessive heatings of the magnetic core. Page 1/3 1) 061004/10 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Current Transducer HXS 50-NP Isolation characteristics Vb Nominal Voltage with IEC 61010-1 standards and following conditions - Single insulation - Over voltage category III - Pollution degree 2 - Heterogeneous field Nominal Voltage with EN 50178 standards and following conditions - Reinforced insulation - Over voltage category III - Pollution degree 2 - Heterogeneous field R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn Creepage distance Clearance distance Comparative tracking index (Group I ) 150 V r.m.s. Vb 300 V r.m.s. Vd dCp dCl CTI 3.5 > 5.5 > 5.5 > 600 kV mm mm V Page 2/3 061004/10 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Dimensions HXS 50-NP (in mm. 1 mm = 0.0394 inch) 16.7 18.7 10.7 3.5 1 12 0.6 6.1 3.5 14 Recommended connection circuit Required connection circuit Ref Out GND Vc 87 P=2.54 P=2.54 5V HXS 50-NP 47nF 0V 4.7nF Output 21 8-1.3d 47nF 4-0.5*0.25 7.7 Number of primary turns Primary current nominal maximum I PN [A] IP [A] Primary resistance R P [m ohm] Primary insertion inductance [uF] [H] LP Recommended PCB connections V Ref. IN/OUT Operation Principle +Vc OUT IN 1 35 7 1 50 20 10 25 60 150 30 75 0.05 0.2 0.025 2 4 6 8 7 Vout Vref.(IN/OUT) 0V IN 1 35 2 0.1 2 4 6 8 7 OUT IN 1 35 4 12.5 5 37.5 15 1 0.4 2 4 6 8 OUT Mechanical characteristics * General tolerance * Fastening & connection of primary jumper Recommended PCB hole * Fastening & connection of secondary Recommended PCB hole 0.2 mm 8 pins O 1.3 mm O 1.5 mm 4 pins 0.5 x 0.25 O 0.7 mm Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the following manufacturer's operating instructions. Remarks * VOUT is positive when IP flows from terminals 1, 3, 5, 7 (IN) to terminals 2, 4, 6, 8 (OUT). * Temperature of the primary conductors should not exceed 100C. 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 built-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 3/3 061004/10 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com |
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