CD 1000-T/SP7

Current Sensors Overview

The LEM CD 1000-T/SP7 is a flux gate current sensor module designed for railway applications. It features a single channel with a primary nominal current of 1500 A and a secondary output signal of 20 mA. The device supports bidirectional measurement with an external DC bipolar supply voltage range of 24 V to 24 V. It offers high accuracy with a maximum error of 3% and withstands an instantaneous voltage of 10 V. The sensor utilizes a single pass-through configuration for non-invasive current monitoring.

Current Sensors Feature Summary

• Utilizes flux gate technology for precise current detection in demanding environments
• Designed specifically for leakage current monitoring in railway fixed installations and onboard systems
• Provides a standardized 20 mA secondary output signal for easy integration into control circuits

Current Sensors Applications

• Railway fixed installation current monitoring
• Onboard railway vehicle current sensing
• Leakage current detection in traction systems

Current Sensors Procurement Notes

Verify the specific suffix SP7 against official LEM documentation to confirm pinout and interface compatibility. Ensure the application environment meets the specified bipolar supply voltage requirements. Confirm that the 1500 A nominal current rating aligns with the system's peak load expectations. Request the official datasheet to validate insulation levels and safety certifications relevant to railway standards.

Current Sensors Selection Notes

Select this component when high-precision flux gate performance is required for railway current monitoring. The 1500 A capacity suits high-power traction applications. Consider the 20 mA output for standard industrial interfaces. Evaluate the bidirectional capability if reverse current flow is possible in the circuit. Ensure the physical dimensions fit the intended mounting space within the railway equipment.

Current Sensors Part Context

This model belongs to the LEM CD series, which is specialized for railway current sensing. The series focuses on detecting leakage currents in both fixed infrastructure and mobile rolling stock. The CD 1000-T/SP7 variant provides a robust solution for high-current applications where accuracy and reliability are critical for system safety and operational efficiency.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult LEM technical support for direct equivalents or updated series replacements.