CTSR2-P/SP10 Current Sensor – A Precision, Reliable, and Versatile Current Sensing Solution

In industries where current measurement accuracy and reliability are paramount – medical equipment, railway traction, industrial automation, and new energy systems – the LEM CTSR2-P/SP10 current sensor is fast becoming the engineer’s first choice. As a flagship product from LEM, the world leader in electrical measurement, the CTSR2-P/SP10 combines ±0.5% high accuracy, stable operation across a -40°C to +85°C wide temperature range, and a compact, easy-to-integrate design to deliver a current sensing solution you can trust in even the most demanding environments.

CTSR2-P/SP10 Core Advantage: Accuracy Is in Its DNA

The CTSR2-P/SP10 employs LEM’s advanced closed-loop fluxgate technology to achieve an outstanding accuracy of ±0.5%. In current detection, measurement precision directly affects overall system control – the CTSR2-P/SP10’s exceptional accuracy helps your system achieve finer regulation and more responsive performance.

In terms of resolution, the CTSR2 series delivers ±0.1 A resolution, which can double the efficiency of servo system parameter calibration. With a fast 1 µs response time, it captures instantaneous current changes in real time – whether handling inrush currents during startup or frequent load fluctuations during operation, the CTSR2-P/SP10 faithfully reports every critical data point.

CTSR2-P/SP10 Environmental Robustness: Unwavering Stability from Arctic Cold to Desert Heat

The CTSR2-P/SP10 operates over a wide temperature range from -40°C to +85°C, ensuring accurate measurements whether in frigid northern winters or sweltering summer heat. Across this full temperature span, linearity deviation remains below 0.1%.

Moreover, the CTSR2’s temperature drift coefficient is 40% lower than that of comparable products, so accuracy stays stable even under high-temperature operating conditions. Real-world data from a 120 kW DC fast-charging station in Shenzhen showed that after adopting the CTSR2, current sampling error remained consistently within ±0.2% under continuous heavy load.

With a common-mode rejection ratio (CMRR) of 1000 V/µs, the CTSR2-P/SP10 shrugs off strong electromagnetic interference, while its IP67 protection rating effectively safeguards against dust and moisture ingress.

CTSR2-P/SP10 Advanced Technology: Closed-Loop Fluxgate for Accuracy and Stability

The CTSR2-P/SP10’s core technological edge comes from LEM’s patented closed-loop fluxgate technology. Compared with traditional open-loop Hall-effect sensors, closed-loop fluxgate offers significant advantages:

Higher accuracy: The closed-loop structure eliminates non-linearity errors from the magnetic core, achieving ±0.5% precision.

Superior temperature stability: The closed-loop design is inherently less sensitive to temperature variations, dramatically reducing drift.

Stronger noise immunity: With a 1000 V/µs CMRR, it performs exceptionally well in high-interference environments such as variablefrequency drives.

Wider bandwidth: Supports 0–200 kHz bandwidth, making it suitable for high-frequency current sensing applications.

In addition, the CTSR2-P/SP10 incorporates advanced self-alibration technology, significantly reducing the need for periodic recalibration and substantially lowering longterm maintenance costs.

CTSR2-P/SP10 Application Fields: Proven Reliability Across Multiple Sectors

Medical Equipment

In medical imaging devices, life-support systems, and other applications where power quality is critical, the CTSR2-P/SP10’s ±0.5% accuracy provides a solid foundation for precision power management. A leading medical imaging OEM upgraded its power modules with the CTSR2-P/SP10, not only resolving previous currentsensing inaccuracies but also noticeably improving image processing speed and clarity.

Railway Traction

The CTSR2-P/SP10 complies with stringent automotive/railway grade standards, including ISO 26262 functional safety. In a major railway project, engineers replaced legacy sensors with the CTSR2-P, resulting in a significant improvement in current measurement accuracy and a marked reduction in fault rates, thereby enhancing ontime train operation reliability.

New Energy & EV Charging

In the EV charging sector, the CTSR2 series has been thoroughly validated – in a 120 kW DC fast charger, current sampling error remained stable within ±0.2% under continuous operation. In wind power, a 50 MW wind farm in Inner Mongolia replaced its existing sensors with the CTSR2 series and recorded a 2.3% increase in quarterly energy yield per turbine.

Industrial Automation

For motor control, servo systems, AGVs, and other industrial automation applications, the CTSR2’s IP67 rating and outstanding EMI immunity make it an ideal choice. An EV motor manufacturer that switched to the CTSR2 reported a yield improvement to 99.2% and a 5.6% reduction in production-line energy consumption.

CTSR2-P/SP10 Compact Design: Easy Integration, Space and Cost Savings

The CTSR2-P/SP10 features a PCB-mount compact form factor – small in size yet powerful in performance, making it exceptionally easy to integrate into space-constrained equipment. Its simple mounting and quick adaptation to existing designs eliminate the need for extensive board re-layouts, saving valuable PCB space while reducing overall design and manufacturing costs.

CTSR2-P/SP10 Specifications at a Glance

Choose CTSR2-P/SP10 – Choose Precision and Peace of Mind

Whether it is precision power management in medical equipment, traction control in railway systems, or safety-critical monitoring in EV charging stations – the CTSR2-P/SP10 delivers outstanding accuracy, rugged reliability, and superior environmental resilience to safeguard your system’s performance.

Available now from authorised distribution channels with stock on hand – welcome your inquiry!