2 juli 2026
LF Series – Precision current sensors for demanding applications
The LF Series current sensors are designed for accurate measurement of DC, AC, and pulsed currents in industrial and railway applications where precision and reliability are critical.
Using closed-loop Hall-effect technology, the LF Series delivers high accuracy, excellent linearity, fast response times, and outstanding long-term stability. Reinforced galvanic isolation between the primary and secondary circuits ensures safe and reliable operation, even in electrically demanding environments.
The series includes multiple models with different aperture sizes and mounting options, making it easy to integrate into a wide range of system designs. All models are available for panel mounting, while selected versions also offer PCB-mount configurations. Their compact design, including ultra-flat variants, makes them ideal for installations where space is limited.
Highlights:
- High-precision measurement of DC, AC, and pulsed currents
- Closed-loop Hall-effect technology for excellent accuracy
- Reinforced galvanic isolation
- Fast response time and wide frequency bandwidth
- High immunity to external magnetic interference
- Compact design with multiple mounting options
- No insertion losses and high overload capability
Typical applications
The LF Series is suitable for a broad range of power electronics and automation systems, including variable speed drives, UPS systems, switched-mode power supplies, battery-powered equipment, welding power supplies, wind power inverters, and test & measurement equipment.
In railway applications, the sensors are widely used on both trackside and onboard tractions systems through single and three phase inverters, propulsion converters, braking and propulsion choppers, auxiliary converters, and battery chargers.
Whether you are designing industrial automation systems or railway power electronics, the LF Series provides precise, isolated current measurement to rely on.