LT208-S7/SP1;LT 208-S7/SP1

Product Detail: LEM LT208-S7/SP1 Closed-Loop Hall Effect Current Transducer

LT208-S7/SP1 Opening

In the field of industrial automation, accurate and reliable current monitoring is the key to ensuring safe equipment operation. LEM, a global leader in current transducers, presents the LT208-S7/SP1 closed-loop Hall effect current transducer. With outstanding accuracy and stable performance, it has become the first choice of engineers worldwide – this product provides real-time current monitoring support for approximately 30% of global industrial robot production lines, serving as the "current guardian" of industrial automation.

LT208-S7/SP1 Core Technical Highlights

Adopting closed-loop Hall effect (compensation) technology, it achieves precise current measurement under high dynamic and wideband conditions. The closed-loop design compensates for temperature drift and external magnetic interference in real time, offering superior linearity and long-term stability compared to conventional open-loop transducers.

Key specifications overview:

Why do so many engineers prefer LT208-S7/SP1?

±0.8% high accuracy, more precise monitoring
Overall accuracy reaches ±0.8%, linearity better than 0.2%, with very low temperature drift. It maintains measurement accuracy over a wide temperature range and under high interference, ensuring system control precision.

<1μs ultra-fast response, timely protection
Response time <1 microsecond, bandwidth covers DC to 100 kHz. Whether DC current or highfrequency transient pulses, it accurately captures them, providing sufficiently fast response for critical applications such as overcurrent protection and shortcircuit monitoring.

6kV high isolation voltage, safe and reliable
With 6kV electrical isolation between primary and secondary circuits and a UL 94-V0 flame-retardant housing, it effectively protects operators and downstream circuitry – ideal for high-voltage and strong electromagnetic environments in industrial and railway applications.

Flexible mounting, easy integration
Supports contact-free, busbar, clampon, and other mounting methods, easily adapting to different equipment structures and reducing system integration and wiring complexity.

LT208-S7/SP1 Typical Applications

Thanks to its high accuracy, fast response and wide bandwidth, the LT208-S7/SP1 is widely used in:

Motor drives & control: AC variable frequency drives, servo motors, static converters for DC motor traction

Power supplies: Uninterruptible power supplies (UPS), switch-mode power supplies (SMPS), battery power, welding power sources

Industrial automation: Current monitoring on industrial robot production lines, pump/fan control and monitoring

Railway systems: Current protection and monitoring for main traction and auxiliary converters, meeting the railway industry’s stringent requirements for wide temperature range and shock/vibration resistance

Renewables & energy management: Optimising power generation efficiency in photovoltaic inverters, real-time current monitoring for power generation systems

Heavy machinery: Current monitoring and protection for elevators, air conditioners, cranes, etc.

LT208-S7/SP1 Market Validation & User Feedback

The LT208-S7/SP1 is not only technically excellent but also widely recognised in real industrial applications.

According to a market report, LEM’s share in the >500A segment of the global industrial sensor market grew to 22% in 2023, with the LT208-S7 series contributing about 38% of that revenue increase.

LEM has over 25 years of experience in isolated current and voltage measurement in the railway industry, ensuring stable and reliable operation under harsh conditions such as wide temperature ranges and heavy shock/vibration.

LT208-S7/SP1 Why choose us?

Genuine products, sufficient stock: All models are original LEM products, with ample inventory – same-day shipping available.

Professional selection & technical support: Our experienced engineering team provides consultancy, technical optimisation and after-sales debugging support.

Competitive pricing & fast delivery: Direct sourcing channels offer competitive volume pricing, meeting the needs of both end customers and bulk buyers.

Quality warranty & after-sales service: Comprehensive quality assurance for worry-free procurement.