Current sensor HLSR 20-P Introduction

Creation Date

The HLSR 20-P is a current sensor manufactured by LEM, part of their HLSR-P series. It utilizes open-loop Hall Effect technology and is specifically designed for precise electronic measurement of DC, AC, and pulsed currents.

Here’s a detailed introduction and explanation of the HLSR 20-P’s function:

Introduction to HLSR 20-P



Function of HLSR 20-P


The primary function of the HLSR 20-P is to provide accurate, isolated current measurement and convert the current signal into an easily processable voltage signal for subsequent control, monitoring, or protection circuits. Specifically, its role is evident in the following areas:


In summary, the HLSR 20-P is a high-performance, compact Hall effect current sensor widely used in industrial, power supply, and renewable energy sectors, providing reliable current measurement solutions for various electronic devices and systems.