HAS 400-P

Current Sensors Overview

The HAS 400-P is a current sensor manufactured by LEM USA Inc., designed for the electronic measurement of DC, AC, and pulsed currents. It utilizes an open-loop Hall effect technology to provide galvanic isolation between the primary high-power circuit and the secondary electronic circuit. The device features a single channel with a detection current rating of 400A. It operates within a supply voltage range of ±15V and consumes a maximum supply current of 15mA. The sensor supports through-hole installation in a module package. Key performance specifications include a frequency response from DC to 50kHz, a linearity of ±0.5%, and an accuracy of ±1%. The response time is specified at 3µs. The operational temperature range extends from -40°C to 85°C.

Current Sensors Feature Summary

• Galvanic isolation between primary and secondary circuits using open-loop Hall effect technology
• Capable of measuring DC, AC, and pulsed currents with bidirectional polarity support
• High precision performance with ±1% accuracy and ±0.5% linearity
• Fast dynamic response suitable for applications requiring rapid signal processing

Current Sensors Applications

• Industrial motor drive systems for current monitoring
• Power supply units requiring precise current feedback
• Inverter and converter topologies for protection and control
• Battery management systems in electric vehicles

Current Sensors Procurement Notes

Verify component authenticity through authorized LEM distributors or direct manufacturer channels. Confirm that the specific part number matches the required electrical specifications and package type. Check for RoHS compliance status if environmental regulations apply to your assembly process. Ensure storage conditions meet humidity sensitivity requirements to maintain sensor integrity prior to installation.

Current Sensors Selection Notes

Select this model when a 400A current rating with high accuracy is required. Consider the ±15V supply requirement during power budgeting. Evaluate the through-hole mounting style against PCB layout constraints. Compare the 3µs response time against system bandwidth needs. Verify thermal management capabilities within the -40°C to 85°C operating range for the intended environment.

Current Sensors Part Context

The HAS series represents LEM's open-loop Hall effect current sensors. These devices are engineered for robust industrial applications where reliable galvanic isolation and accurate current measurement are critical. The HAS 400-P is part of a broader family offering various current ratings, sharing common technological foundations while differing in specific electrical parameters and mechanical configurations.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers: None identified.