Current Transducer HXS 20-NP/SP30 IPN = 5 - 10 - 20 A 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). All Data are given with a R L = 10 k Electrical data IPN IP VOUT VREF RL ROUT CL VC IC 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 20 A 60 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 Accuracy - Dynamic performance data Accuracy 2) @ IPN , TA = 25C L Linearity 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 Output noise (DC ..10 kHz) (DC .. 1 MHz) f Frequency bandwidth (-3 dB) 3) X m Ambient operating temperature Ambient storage temperature Creepage distance Clearance distance Comparative tracking index (Group I ) UL94 classification Mass Standards * Hall effect measuring principle * Multirange current transducer through PCB pattern lay-out * Galvanic isolation between primary and secondary circuit * Isolation test voltage 2500V * Low power consumption * Extremely low profile, 10mm * Single power supply +5V * Fixed offset & gain Special Feature 1 % of IPN 0.5 % of IPN 1 % of IPN 0.4 mV/K 0.01 %/K 0.2 mV/K 0.07% of reading/K <1.2 % of IPN <3 s <5 s > 50 A/s < 15 mVpp < 40 mVpp DC .. 50 kHz General data TA TS dCp dCl CTI Features - 40 .. + 85 C - 40 .. + 85 C > 5.5 mm > 5.5 mm > 600 V V0 10 g EN 50178 (97-10-01) * Designed to avoid heating Advantages * Small size and space saving * Only one design for wide current ratings range * High immunity to external interference. * Internal & external reference Applications * AC variable speed drives * Static converters for DC motor drives * Battery supplied applications * Uninterruptible Power Supplies (UPS) * Switched Mode Power Supplies (SMPS) * Power supplies for welding applications. 041222/3 LEM Components w w w .lem.com Current Transducer HXS 20-NP/SP30 Insulation category Vb Vb Vd Ve Vw 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 R.m.s. voltage for partial discharge extinction @ 10pC Impulse withstand voltage 1.2/50s 150 V r.m.s. 300 V r.m.s. 2.5 >1 6 kV kV kV Notes : 1) 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. Safety : Caution, risk of danger Caution, risk of electrical shock LEM Components This transducer shall be used in accordance with manufacturer instruction. The temperature of the primary conductor shall not exceed 100C Power supply shall be a low voltage source and shall have an efficient protective system against over current. Power supply must incorporate a circuit breaker. This transducer shall be used in an electric/electronic equipment in respect of standards rules and applicable safety requirements. Primary bar and output terminals can provide hazardous voltage. This transducer is a built in device, of which conducting parts must be inaccessible by installation. Protective envelope or additional shield must be used. w w w .lem.com HXS 20-NP/SP30 Dimensions (in mm) 18.5 3.5 3.5 10 16.5 12 14 6.1 0.6 Recommended connection Required Connection Circuitcircuit 8 6 4 2 7 5 3 1 HXS 20-NP /SP30 P=2.54 P=2.54 18.5 5V Ref Out GND Vc 47nF 0V 4.7nF Output 47nF V Ref. IN/OUT Ref. 8-1.3d 4-0.5*0.25 Operation Principle 7.7 +Vc Vout Vref.(IN/OUT) 0V Ip Number of primary turns Primary current Primary nominal maximum resistance I PN [A] R P [m ohm] IP [A] Primary insertion inductance [uF] LP Recommended PCB connections IN 1 20 60 0.05 IN 2 10 30 0.2 5 15 1 Mechanical characteristics * General tolerance * Fastening & connection of primary jumper Recommended PCB hole * Fastening & connection of secondary Recommended PCB hole 3 5 7 2 4 6 8 1 3 5 7 2 4 6 8 1 3 5 7 2 4 8 OUT 0.12 IN 4 1 0.029 OUT 0.46 6 OUT Remarks 0.2 mm 8 pins O 1.3 mm O 1.5 mm 4 pins 0.5 x 0.25 O 0.7 mm * 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. LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.