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Picture of LF505S/SP27 LEM Current Transducer

LF505S/SP27 LEM Current Transducer

Measuring Current DC Transducer Type Ultrasonic Transducer Usage/Application This transducer must be used in limited-energy secondary circuits according to IEC 61010-1 Output Impedance -40 DegreeC to + 70 DegreeC Model LF505-S/SP27 Manufacturer LEM
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SKU: NSRN1870
1,899.00 (SAR)
1,421.00 (SAR)
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  • For the electronic measurement of currents: DC, AC, pulsed, etc., with galvanic separation between the primary circuit and the secondary circuit.
  • Electrical data IPN Primary nominal rms current: 500 A IPM Primary current, measuring range 0 ±1480 A RM Measuring resistance RM min RM max with ±24 V @ ±500 A max 0 148.5 @ ±1480 A max 0 2.5 ISN Secondary nominal rms current: 100 mA KN Conversion ratio 1 : 5000 UC Supply voltage (±5 %) ±24 V IC Current consumption: 33 + IS mA Accuracy: Dynamic performance data X Accuracy @ IPN, TA = 25 °C ±0.6 % @ IPN, TA = −10 °C … +70 °C ±0.9 % εL Linearity error < 0.1 % Typ Max IO Offset current @ IP = 0, TA = 25 °C ±0.4 mA IOM Magnetic offset current @ IP = 0, and specified RM, after an overload of 3 × IPN ±0.2 mA IOT Temperature variation of IO −10 °C … +70 °C ±0.1 ±0.3 mA −40 °C … −10 °C ±0.3 ±0.8 mA t r Step response time 1) to 90 % of IPN < 1 µs di/dt di/dt accurately followed > 200 A/µs BW Frequency bandwidth (−1 dB) DC, 100 kHz General data TA Ambient operating temperature −40 … +70 °C TS Ambient storage temperature: −40 … +85 °C RS Resistance of secondary winding at TA = 70 °C 68 m mass: 230 g Standards EN 50178: 1997; IEC 61800-5-1; UL 508: 200 Note: 1) With a di/dt of 100 A/s, IPN = 500 A Features Closed-loop (compensated) current transducer using the Hall effect Insulating plastic cases are recognized according to UL 94-V0. Special features IPM = 0... ±1480 A UC = ±24 V (±5 %) Connection to secondary circuit on JST BH03B-XASK-BN connector 2D Datamatrix Barcode-label Improved dynamic performance Extended temperature range. 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. Applications AC variable-speed drives and servo motor drives Static converters for DC motor drives Battery-supplied applications Uninterruptible Power Supplies (UPS) and Switched Mode Power Supplies (SMPS) are power supplies for welding applications. Application domain: industrial. dCl d
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