HAH3DR 800-S0E,HAH3DR800-S0E

HAH3DR 800-S0E Three-Phase Open-Loop Hall Effect Current Transducer

HAH3DR 800-S0E Product Overview

The HAH3DR 800-S0E is a three-phase open-loop Hall effect current transducer from LEM's HAH3DR S0E series, designed for measuring DC, AC, and pulsed currents in high-power and low-voltage automotive applications. It provides galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit), making it ideal for traction inverters in hybrid and electric vehicles.

This sensor features a single-channel design with a ratiometric voltage output, specifically engineered for mounting on thick busbars with a cable connector for remote placement from the inverter module. It utilizes open-loop Hall effect technology with a LEM-designed magnetic core and proprietary ASIC, delivering low offset, excellent linearity, and high accuracy over temperature and lifetime.

HAH3DR 800-S0E Key Specifications

Rated current: 800 A
Measuring range: 800 A
Number of channels: 1
Output signal: Ratiometric, voltage (instantaneous 0-5V)
Sensitivity: 2.5 mV/A
Supply voltage: 4.75 V to 5.25 V DC (unipolar, 5 V nominal)
Maximum supply current: 60 mA
Accuracy: ±3.5%
Linearity: ±1%
Response time: 6 µs
Frequency bandwidth: DC to 40 kHz
Polarization: Unidirectional
Operating temperature: -40°C to +125°C
Mounting: Panel / Chassis mount
Package: Module
Technology: Open-loop Hall effect
Applications: Automotive motor control
Product status: Active

HAH3DR 800-S0E Key Advantages

The HAH3DR 800-S0E features a S0x design optimized for thick busbar mounting with a cable connector, enabling placement further away from the inverter module for flexible system integration. The open-loop Hall effect technology with LEM's proprietary ASIC delivers low offset, excellent linearity, and high global accuracy specified over temperature and lifetime.

The ratiometric output allows the sensor to share the same power supply as the Analog-to-Digital Converter (ADC), preventing further error during signal conversion due to reference mismatch. The fast response time of 6 µs, high bandwidth of DC to 40 kHz, and high dV/dt withstand capability make it suitable for demanding motor control and traction inverter applications.

The unipolar 5 V supply simplifies integration with automotive electronics. The wide -40°C to +125°C operating temperature range supports demanding automotive environments. The sensor provides galvanic isolation between primary and secondary circuits for enhanced system safety. The HAH3 series offers a variety of current measuring ranges within the same housing, from ±200 A up to ±1500 A, providing scalability for various system requirements.

HAH3DR 800-S0E Typical Applications

Traction inverters for hybrid and electric vehicles
High-power motor control systems
Three-phase motor drives
Automotive power conversion systems
HEV and EV traction inverters
DC-DC converters
High-power automotive motor control

HAH3DR 800-S0E Why Choose the HAH3DR 800-S0E?

The HAH3DR 800-S0E combines an 800 A rating, ±3.5% accuracy, ±1% linearity, 6 µs response time, DC to 40 kHz bandwidth, and ratiometric 0-5V output in a panel-mount package designed for thick busbar mounting with cable connection. Manufactured by LEM, a global leader in electrical measurement, it delivers reliable, accurate current sensing for demanding automotive traction inverter and motor control applications.

The S0x design with cable connector enables flexible sensor placement away from the inverter module, simplifying mechanical integration. The open-loop Hall effect technology with proprietary ASIC ensures consistent performance over temperature and lifetime, while the ratiometric output simplifies ADC integration. The product is active, RoHS compliant, and available with a manufacturer standard lead time of 14 weeks. For engineers designing high-power automotive traction inverters and motor control systems requiring reliable, accurate current sensing with flexible mounting options, the HAH3DR 800-S0E is the ideal choice.