LA205-S

Current Transducer LA 205-S 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). IPN = 200 A Electrical data IPN IP ÎP max RM Primary nominal r.m.s. current Primary current, measuring range Measuring overload 1) Measuring resistance @ with ± 12 V with ± 15 V ISN KN VC IC Vb @ ± 200 A max @ ± 300 A max @ ± 200 A max @ ± 300 A max 200 0 .. ± 300 600 TA = 70°C TA = 85°C RM min RM max RM min RM max 0 0 5 5 68 33 95 50 0 0 5 5 66 30 93 49 A A A Features • Closed loop (compensated) current • Insulated plastic case recognized transducer using the Hall effect according to UL 94-V0 Ω Ω Ω Ω • Patent pending. 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 capability. Secondary nominal r.m.s. current Conversion ratio Supply voltage (± 5 %) Current consumption R.m.s rated voltage 2), safe separation basic isolation 100 mA 1 : 2000 ± 12 .. 15 V 20 (@ ± 15 V) + IS mA 1625 V 3250 V Accuracy - Dynamic performance data XG ε L Overall accuracy @ IPN , TA = 25°C Linearity Offset current @ IP = 0, TA = 25°C Residual current 3) @ IP = 0, after an overload of 3 x IPN Thermal drift of IO - 10°C .. + 85°C Reaction time @ 10 % of IPN Response time 4) @ 90 % of IPN di/dt accurately followed Frequency bandwidth (- 3 dB) ± 0.8 < 0.1 Max ± 0.15 ± 0.50 ± 0.15 ± 0.30 < 500 100 DC .. 100 Typ % % mA mA mA ns µs A/µs kHz Applications • AC variable speed drives and servo • Static converters for DC motor drives • Battery supplied applications • Uninterruptible Power Supplies • Switched Mode Power Supplies • Power supplies for welding (SMPS) (UPS) motor drives IO IOM IOT tra tr di/dt f General data TA TS RS m Ambient operating temperature Ambient storage temperature Secondary coil resistance @ - 10 .. + 85 - 40 .. + 90 35 37 110 EN 50178 °C °C Ω Ω g applications. TA = 70°C TA = 85°C Mass Standards 5) Notes : 1) 3 mn/hour @ VC = ± 15 V, R M = 5 Ω 2) Pollution class nr 2. W ith a non insulated primary bar which fills the through-hole 3) The result of the coercive field of the magnetic circuit 4) With a di/dt of 100 A/µs 5) A list of corresponding tests is available 020711/6 LEM Components w w w .lem.com Dimensions LA 205-S (in mm. 1 mm = 0.0394 inch) Front view Left view C onnection Top view Mechanical characteristics • • • • General tolerance Fastening Primary through-hole Connection of secondary ± 0.5 mm 2 holes ∅ 5.5 mm 23 x 18 mm Molex 5046-04/AG Remarks • IS is positive when IP flows in the direction of the arrow. • Temperature of the primary conductor should not exceed • Dynamic performances (di/dt and response time) are best • This is a standard model. For different versions (supply voltages, turns ratios, unidirectional measurements...), please contact us. with a single bar completely filling the primary hole. 100°C. LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.