HAH1DRW 600-S Compact Hall-Effect Current Sensor | LEM

HAH1DRW 600-S Product Overview

The HAH1DRW 600-S is a compact open-loop Hall-effect current sensor from LEM (Switzerland), designed for busbar mounting. With a rated current of 600 A, it measures DC, AC, and pulsed currents. Whether you are developing high-power motor control systems, new energy vehicle high-voltage platforms, or industrial power supplies, the HAH1DRW 600-S delivers accurate and reliable current detection.

HAH1DRW 600-S Key Advantages

Innovative Technology, Strong Performance

The open-loop Hall-effect technology gives the HAH1DRW 600-S excellent dynamic response – bandwidth DC to 40 kHz, capable of capturing transient current waveforms in power electronics switching. At the same time, the sensor measures both DC and AC components, making it suitable for complex mixed-signal applications.

High Accuracy, Stable and Reliable

Rated measuring current: 600 A

Accuracy: 2.25% (typical for the HAH1DRW series)

Linearity: ±1%

Sensitivity: 3.33 mV/A

Output signal: Instantaneous voltage output 2.5 ±2 V

Extreme Environment Adaptability

Designed for harsh industrial conditions, the HAH1DRW 600-S operates reliably across a wide temperature range from -40°C to 125°C. Whether in cold-climate renewable energy sites or industrial cabinets with limited cooling, the sensor maintains accurate measurement.

Fast Response, Quick Reaction

Only 6 µs response time – the HAH1DRW 600-S quickly detects current transients, providing timely and accurate data for overcurrent protection, fault diagnosis, and system control.
Electrical Isolation, Safe and Secure

Galvanic isolation between the primary high-power circuit and secondary electronics ensures control circuit safety and effectively suppresses commonmode interference.

High Quality Certification, Worry-Free Warranty

All LEM production and development centers are certified to ISO TS 16949 and ISO 9001. The HAH1DRW 600-S carries the CE mark and complies with RoHS. Like all LEM railway and industrial products, it is backed by a five-year warranty.

HAH1DRW 600-S Key Specifications

HAH1DRW 600-S Applications

Thanks to its wide current range, high frequency response, and wide temperature operation, the HAH1DRW 600-S is suitable for:

New Energy Vehicles (EV/HEV)

Battery Management Systems (BMS) – precision monitoring of battery charge/discharge current

Motor control – electric power steering, starter generators, etc.

DC-DC converters – current sensing in high-voltage conversion stages

On-board chargers (OBC) – charging current monitoring

Industrial Automation & Motor Control

High-power motor drives – redundant/dual-range function adapts to high-power motors with high/low range output

Variable frequency drives – real-time current feedback for accurate torque control

Industrial power supplies & UPS – AC/DC converter current monitoring

Factory automation – equipment monitoring and fault warning

Renewable Energy & Energy Storage

PV inverters – DC side current acquisition and MPPT control

Energy storage converters – charge/discharge monitoring of battery storage systems

Wind turbine converters – current measurement on generator and grid sides

Railway & Traction

Traction converters – high-current detection for train drives

Auxiliary power systems – current monitoring for onboard power equipment

Typical applications summary: variable speed drives, industrial power supplies, AC/DC converters, UPS systems, wind and solar power generation, and new energy vehicle battery management systems.

Why Choose the HAH1DRW 600-S?