FL Series Open-Loop Coreless Integral Sensors

The LEM FL series current sensors provide high-performance electronic measurement of DC, AC, and pulsed currents while maintaining full galvanic isolation between primary and secondary circuits. Engineered to measure currents up to 42 kA, the FL line offers flexibility with either a 4 mA to 20 mA current output or a 0 V to 5 V instantaneous voltage output. The sensors are available with large 200 mm or 300 mm apertures, making them ideal for installations requiring wide conductor or busbar accommodation. Built on the LEM open-loop coreless integral (OLCI) technology, these coreless transducers deliver dependable, accurate current measurement for demanding industrial, traction, and trackside environments.