IN200-S Ultra-High Accuracy Closed-Loop Fluxgate Current Transducer

——Let your test data become your true competitive advantage——

Why do industry leaders choose IN200-S?

When it comes to current measurement, accuracy sets the ceiling.

The IN200-S is LEM’s Ultra Accuracy class current transducer. It uses revolutionary patented fluxgate technology to achieve isolated ultra-high accuracy measurement of DC, AC, and pulse currents. For R&D engineers, test & certification experts, and medical equipment manufacturers, the IN200-S is more than a transducer – it is the key component that determines whether your equipment meets the highest international standards.

As a global market leader in electrical measurement, LEM has consistently been at the core of the electrical measurement field, driven by relentless quality and innovation. The IN200-S delivers unparalleled linearity and extremely low temperature drift over a wide temperature range, and is widely used in demanding applications such as hybrid/electric vehicle inverter efficiency analysis and MRI gradient amplifiers.

IN200-S Core advantages: technical parameters that prove excellence

Industry-leading linearity: 0.6 ppm

Ultra-high linearity over full temperature range: From –40 ℃ to +85 ℃, the IN200-S maintains 0.6 ppm linearity with a maximum temperature drift below 10 ppm.

0.0012 % ultra-high accuracy: Far beyond conventional Hall-effect transducers, ideal for high-precision test & measurement, calibration equipment, and medical devices.

Extremely low noise, 50 ppm peak-to-peak: Provides clean, stable output even in high-resolution signal acquisition scenarios.

Outstanding dynamic response

200 ns fast response: Captures current transients almost instantly, ensuring real-time system control.

DC to 1.1 MHz wide bandwidth: Accurately measures from DC up to MHz-level high-frequency signals – perfect for current monitoring in high-frequency power electronic systems.

Wide reliable operating range

–40 ℃ to +85 ℃ wide-temperature operation: Performs consistently whether in cold-climate testing or the high-temperature environment inside an EV.

Rated 200 A / measuring range 300 A: Wide dynamic range to accommodate various current load fluctuations.

15 V ± 14.25 V ~ 15.75 V wide supply tolerance: Easy system integration with multiple power supply conditions.

Integrated electrical protection design

Galvanic isolation between primary and secondary circuits: Complete electrical isolation guarantees system safety and rejects high-voltage side interference.

Built-in electrostatic shield: Effectively suppresses high-frequency interference for stable operation in complex electromagnetic environments.

LED status indicator + opto-isolated output: Provides real-time health status of the transducer, facilitating fault diagnosis and system maintenance.

IN200-S Wide range of applications: empower advanced manufacturing

Why the IN200-S is your smart choice

Compact package, easy integration

The module is a compact single-pass through package, suitable for panel (chassis) mounting, with a 9-pin D-sub male connector. A 200-turn test winding is built-in, greatly reducing the workload for system developers during validation and testing.

Excellent EMC immunity

In high-intensity EMI environments such as industrial automation or EV drive systems, the IN200-S remains highly stable, ensuring measurement data is neither distorted nor jittery.

Full compliance certification

All products strictly comply with international safety standards such as CE (EMC, LVD) and are fully RoHS3 compliant.

LEM patented technology

The IN200-S uses LEM’s latest-generation closed-loop fluxgate technology. Compared to previous generations, it is more compact and achieves even higher accuracy and lower noise over a wide temperature range – raising the benchmark for fluxgate technology.