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LA15-PB Scheda tecnica(PDF) 1 Page - LEM |
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LA15-PB Scheda tecnica(HTML) 1 Page - LEM |
1 / 3 page Electrical data Primarynominal Primary current, Primary Current Primary Conductor Type r.m.s. current 1) measuring range Limitation3) Diameter I PN (A) I P (A) (A) (mm) 3 ± 4.5 3 0.5 LA 03-PB 5 ± 7.5 3 0.5 LA 05-PB 10 ± 15 5 0.65 LA 10-PB 15 ± 22.5 7.5 0.8 LA 15-PB 20 ± 30 10 1.0 LA 20-PB V C Supply voltage (± 5 %) ± 15 V I C Current consumption app. 20mA + I PN/1200mA R IS Isolation resistance @ 500 VDC > 500 M Ω V OUT Output voltage @ ± I PN, RL = 10 kΩ, TA = 25°C ± 4 V R L Load resistance > 10 k Ω Accuracy-Dynamic performance data X Accuracy @ I PN, TA = 25°C (without offset) <± 1.5 % of I PN ε L Linearity error (0 .. ± I PN) <± 1 % of I PN V OE Electrical offset voltage, T A = 25°C <± 30 mV V OH Hysteresis offset voltage @ I P = 0; after an excursion of 1 x I PN <± 15 mV V OT Thermal drift of V OE (-10..+80°C) <± 1 mV/K (-20..-10°C) <± 2 mV/K TC ε G Thermal drift of the gain (% of reading) (-10..+80°C) <± 0.04 %/K (-20..-10°C) <± 0.08 %/K t r Response time @ 90% of I P < 3 µs f Frequency bandwidth (- 1dB)2) DC .. 150 kHz General data T A Ambient operating temperature - 20 .. + 80 °C T S Ambient storage temperature - 30 .. + 85 °C m Mass < 12 g Notes : 1) Calibration for 4V output is carried out at the primary norminal r.m.s. current. 2) Derating is needed to avoid excessive core heating at high frequency. 3) Primary current is limited by primary wire size. Permanent primary current should not exceed the specified value. Current Transducer LA 03..20-PB 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). I PN = 3 .. 20 A Features • Closed loop (compensation) current transducer using the Hall effect • Voltage output • Printed circuit board mounting Advantages • Excellent accuracy • Very good linearity • Low temperature drift • Optimized response time • Wide frequency bandwidth • No insertion losses • High immunity to external interference • Current overload capacity 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 051102/6 LEM Industrial www.lem.com LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Page 1/3 |
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