DHR 300 C420

Current Sensors Overview

The LEM DHR 300 C420 is a current transducer designed for industrial applications, utilizing Hall effect technology to measure AC and DC currents. It features a nominal sensing range of 300A with a 4-20mA analog output signal. The device operates on a DC supply voltage ranging from 20V to 50V. It provides bidirectional measurement capabilities within a single channel configuration. The unit is constructed as a module suitable for panel mounting, ensuring reliable performance in demanding electrical environments.

Current Sensors Feature Summary

• Hall effect based isolation for accurate AC/DC current measurement
• Standardized 4-20mA current output signal for easy integration
• Bidirectional sensing capability for comprehensive monitoring
• Robust module design intended for secure panel installation

Current Sensors Applications

• Industrial motor drive systems
• Power supply monitoring circuits
• AC/DC converter feedback loops
• Battery management systems

Current Sensors Procurement Notes

Verify the specific suffix codes against official LEM documentation to ensure correct output type and package variant. Confirm that the 4-20mA output matches system requirements. Check supply voltage compatibility within the 20V to 50V DC range. Ensure panel mounting specifications align with mechanical constraints. Validate authenticity through authorized distributors only.

Current Sensors Selection Notes

Choose this model when a robust 300A Hall effect sensor with standard 4-20mA output is required. Consider the bidirectional nature if reverse current flow must be monitored. Evaluate the 20V-50V supply requirement against available power rails. Assess panel mounting needs versus PCB mount alternatives like the GO series. Verify frequency response meets application bandwidth demands.

Current Sensors Part Context

This component belongs to LEM's industrial current sensor portfolio, focusing on high-reliability measurements for power electronics. It complements other LEM offerings by providing a standardized analog interface for legacy and modern control systems. The series emphasizes durability and precision in challenging electrical conditions.

Current Sensors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.