Current Transducer LTS 15-NP For the electronic measurement of currents: DC, AC, pulsed, mixed with galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). 16058 Features Electrical data IPN IPM ÎP VOUT G NS RL R IM TCR IM VC IC Primary nominal current rms Primary current, measuring range Overload capability Output voltage (Analog) @ IP IP = 0 Sensitivity Number of secondary turns (± 0.1 %) Load resistance Internal measuring resistance (± 0.5 %) Temperature coefficient of R IM Supply voltage (± 5 %) Current consumption @ VC = 5 V Typ 15 At 0 .. ± 48 At 250 At 2.5 ± (0.625·IP/IPN) V 2.5 1) V 41.6 mV/A 2000 ≥ 2 kW 83.33 W < 50 ppm/K 5 V 28+IS2)+(VOUT/RL) mA Accuracy - Dynamic performance data X ε L Accuracy @ IPN, TA = 25°C Accuracy with RIM @ IPN, TA = 25°C Linearity error ± 0.2 ± 0.7 < 0.1 % % % Typ Max TCVOUT Temperature coefficient of VOUT @ IP= 0 - 10°C .. + 85°C 65 120 ppm/K - 40°C .. - 10°C 65 170 ppm/K TCG Temperature coefficient of G - 40°C .. + 85°C 50 3) ppm/K VOM Magnetic offset voltage @ IP = 0, after an overload of 3 x IPN ± 0.5 mV 5 x IPN ± 2.0 mV 10 x IPN ± 2.0 mV tra Reaction time @ 10 % of IPN tr Response time to 90 % of IPN step di/dt di/dt accurately followed BW Frequency bandwidth (0 .. - 0.5 dB) (- 0.5.. 1 dB) < 100 < 400 > 35 DC .. 100 DC .. 200 ns ns A/µs kHz kHz General data TA TS m IPN = ± 15 At ●● Closed loop (compensated) multirange current transducer using the Hall effect ●● Unipolar voltage supply ●● Isolated plastic case recognized according to UL 94-V0 ●● Compact design for PCB mounting ●● Incorporated measuring resistance ●● Extended measuring range. Advantages ●● ●● ●● ●● ●● ●● ●● Excellent accuracy Very good linearity Very low temperature drift Optimized response time Wide frequency bandwidth No insertion losses High immunity to external interference ●● Current overload capability. Applications ●● AC variable speed drives and servo motor drives ●● Static converters for DC motor drives ●● Battery supplied applications ●● Uninterruptible Power Supplies (UPS) ●● Switched Mode Power Supplies (SMPS) ●● Power supplies for welding applications. Application domain Ambient operating temperature Ambient storage temperature Mass Standards °C °C 10 g EN 50178: 1997 IEC 60950-1: 2001 - 40 .. + 85 - 40 .. + 100 ●● Industrial. Notes: 1) Absolute value @ TA = 25°C, 2.475 < VOUT < 2.525 2) IS = IP/NS 3) Only due to TCRIM. 110218/19 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. Page 1/3 www.lem.com Current Transducer LTS 15-NP Isolation characteristics Vd Vw Ve dCp dCI CTI Notes: 1) 2) Rms voltage for AC isolation test, 50 Hz, 1 min Impulse withstand voltage 1.2/50 µs Rms voltage for partial discharge extinction @ 10pC 3 > 8 Min > 1.5 Min kV kV Creepage distance 1) Clearance distance 2) Comparative Tracking Index (group IIIa) 15.5 6.35 175 mm mm kV On housing On PCB with soldering pattern UTEC93-703. 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 Rated insulation voltage Nominal voltage Single insulation 600 V 600 V Reinforced insulation 300 V 300 V dCp, dCI, Vw Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturer’s 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 110218/19 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Dimensions LTS 15-NP (in mm) Operation principle Number of primary turns Primary nominal current rms IPN [ A ] Nominal output voltage VOUT [ V ] Primary resistance RP [ mW ] Primary insertion inductance LP [ µH ] 1 ± 15 2.5 ± 0.625 0.18 0.013 Recommended connections IN 2 ± 7.5 2.5 ± 0.625 0.81 ±5 2.5 ± 0.625 1.62 ●● General tolerance ± 0.2 mm ●● Fastening & connection of primary 6 pins 0.8 x 0.8 mm Recommended PCB hole 1.3 mm ●● Fastening & connection of secondary 3 pins 0.5 x 0.35 mm Recommended PCB hole 0.8 mm ●● Additional primary through-hole Ø 3.2 mm 4 OUT 1 6 2 5 3 4 OUT 1 6 2 5 3 4 OUT 1 2 3 0.12 IN Mechanical characteristics 5 0.05 IN 3 6 Output Voltage - Primary Current VOUT [V] 5 4.5 3.125 2.5 Remarks 1.875 ●● VOUT swings above 2.5 V when IP flows from terminals 1, 2, 3 to terminals 6, 5, 4 (with the arrow). ●● Temperature of the primary jumper should not exceed 100°C. 0.5 - IPM - IPN 0 IPN IP [ At ] IPM Page 3/3 110218/19 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com