HLSR Series Current Sensors: The Ideal Choice for Precise Measurement and Wide Applications

The HLSR series sensors are a high-performance current sensor launched by LEM, designed to meet the modern industrial demands for accurate current measurement. Below are the main advantages and specific parameters of the HLSR series products, aimed at recommending this outstanding current measurement solution to readers.

Precise Measurement and Wide Applications

The HLSR series sensors can accurately measure direct current (DC), alternating current (AC), and pulse currents, suitable for various industrial applications, including:

AC variable frequency drives and servo motor drives

Static converters (DC motor drives)

Uninterruptible power supplies (UPS)

Switch-mode power supplies (SMPS)

Solar inverters, etc.

This series offers multiple rated current versions, including 10 A, 20 A, 32 A, 40 A, and 50 A, to meet different application scenarios.

Features and Advantages

Fast Response Time:  The response time of the HLSR series sensors is less than 2.5      microseconds, allowing for quick detection of abnormal high currents and short-circuit conditions, ensuring system safety.

Low Power Consumption and High Efficiency: This series of sensors performs excellently in terms of power consumption, making them suitable for long-term operation while      ensuring high efficiency.

Excellent Isolation: HLSR sensors provide good electrical isolation between the primary      circuit and secondary circuit, ensuring operational safety.

Low Offset and Gain Drift: The HLSR series features low offset and gain drift      characteristics, improving measurement accuracy, especially in high-temperature environments.

Installation Flexibility

HLSR sensors feature a compact design with a PCB area of only 3.87 cm² and a height of just 12 mm, making them suitable for space-constrained environments. They offer two installation methods: HLSR-P for through-hole mounting and HLSR-SM for surface mounting, making integration into existing systems more convenient.

Safety and Reliability

The HLSR series sensors utilize open-loop Hall effect technology, which has a simple structure containing only one active component—the Hall effect ASIC—resulting in extremely high reliability. This series of products undergoes rigorous testing to ensure stable operation in various working environments. Additionally, the HLSR sensors have an electrical clearance distance of 8 mm and a comparative tracking index (CTI) of 600, ensuring safe measurements.

Application Areas

The HLSR series sensors are widely used in the following fields:

Industrial inverters and motor drives

Battery-powered applications

Uninterruptible power supplies (UPS)

Switch-mode power supplies (SMPS)

Renewable energy systems such as solar combiner boxes and inverters

Conclusion

In summary, LEM's HLSR series sensors are an indispensable current measurement solution in modern industry due to their outstanding performance, flexible design, and wide range of applications. Whether in electric vehicles, battery management systems, or renewable energy sectors, the HLSR series can provide precise and reliable measurement results, making it an ideal choice for enhancing system efficiency and safety.

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