In summary, LEMs transducer families are called; LXS, LXSR, LES, LESR, LKSR, LPSR. Each transducer can be mounted on printed circuit boards for non-intrusive and isolated measurements of DC, AC and pulsed nominal currents from 1.5A to 50A thanks to a multi-range configuration. These closed-loop current transducers are based on a LEM custom proprietary patented Hall Effect ASIC, allowing them to perform at the level of fluxgate transducers. The LxSR current transducer range has an offset drift that is over four times lower than the previous generation of closed-loop transducers based on Hall cells. The value reached is very similar to those using fluxgate. Offset drift achieves a value between 4 to 14 ppm/°C. LEM’s spinning technique and specialist integrated circuits (IC) have been significant contributors to these drastic improvements. With the products’ performance of fluxgate, customers are not only provided with better control and increased system efficiency, but also a significantly lower price. Advanced manufacturing techniques have also been introduced with full automotive qualification in mind, allowing these transducers to achieve the highest levels of quality and traceability. The LxSR production line has been designed to be autonomous, with an “Industry 4.0” approach. Six families and 22 models are available with various options, such as an integrated reference (V_REF), footprint (3 or 4 primary pins with different layouts), with an aperture and/or with integrated primary conductors and overcurrent detection output (LPSR models) on a dedicated pin to give an indication that a measured current is exceeding its expected value or to switch power off in the event of a short circuit. They are fully compatible with the previous LEM series and can easily be used with existing applications. Typical applications for LxSR current transducers include drive technology, where a high degree of control and automation is required to increase productivity and energy efficiency. The LxSR family currently offers the highest efficiency at the best price.