
LEM LXS 15-NPS LXS Series Closed Loop Current Transducer
LEM LXS 15-NPS Product Overview
The LXS 15-NPS is a closed-loop Hall effect current transducer from LEM's LXS Series, designed for the electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits. This compact PCB-mount transducer features an aperture for primary conductor insertion and delivers performance approaching fluxgate technology at a cost-effective price point.
Rated for 15 A nominal with a measuring range of ±51 A, it outputs a ratiometric voltage signal of 2.5 ± 0.625 V with 0.45% accuracy. Sensitivity is 41.67 mV/A, with ±0.1% linearity. Response time is 0.4 µs and frequency bandwidth is 300 kHz. Supply voltage range is 4.75 V to 5.25 V DC. Mass is approximately 10 g and operating temperature ranges from -40°C to +105°C. Insulation test voltage is 4.3 kV RMS. The device features very low offset drift and excellent dv/dt immunity.
LEM LXS 15-NPS Key Specifications
|
Parameter |
Value |
|
Rated current (IPN) |
15 A |
|
Measuring range (IPM) |
±51 A |
|
Output signal |
Ratiometric, voltage (2.5 ± 0.625 V) |
|
Supply voltage (VC) |
4.75 V to 5.25 V DC |
|
Accuracy (X) |
0.45 % |
|
Linearity (EL) |
±0.1 % |
|
Sensitivity |
41.67 mV/A |
|
Response time (tr) |
0.4 µs |
|
Bandwidth (BW) |
300 kHz |
|
Turns ratio |
|
|
Insulation (Vd) |
4.3 kV RMS / 50 Hz / 1 min |
|
Operating temp (TA) |
-40°C to +105°C |
|
Mass (m) |
10 g |
|
Mounting |
PCB through-hole |
LEM LXS 15-NPS Key Advantages
The LXS 15-NPS employs closed-loop Hall effect technology with ASIC signal conditioning, delivering 0.45% accuracy and ±0.1% linearity while providing galvanic isolation between primary and secondary circuits. The very low offset drift ensures stable performance across the wide -40°C to +105°C temperature range, outperforming traditional Hall effect sensors. The ±51 A measuring range provides ample headroom for overload conditions. The single +5 V supply simplifies system integration. The compact PCB-mount design (mass only 10 g) and LTS footprint compatibility enable efficient space utilization in power electronics. Excellent dv/dt immunity and 0.4 µs fast response ensure robust performance in noisy environments.
LEM LXS 15-NPS Typical Applications
AC variable speed 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
Solar inverters
Industrial automation and control systems
Why Choose the LEM LXS 15-NPS?
The LXS 15-NPS combines a 15 A rated current with ±51 A measuring range and ratiometric voltage output in a compact PCB-mount package. Manufactured by LEM, it delivers stable, accurate, and safe current measurement for industrial and renewable energy applications. The closed-loop Hall effect design provides accuracy approaching fluxgate technology without the associated cost, while the compact design and fast response time make it an ideal choice for space-constrained power electronics designs.
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