CTSR 1-P/SP10

Current Sensors Overview

The CTSR 1-P/SP10 is a closed-loop fluxgate residual current sensor manufactured by LEM USA Inc. It measures AC and DC currents up to 1A with high precision. The device features a single pass-through configuration for unidirectional measurement. It includes an integrated self-test function to verify internal ASIC integrity and output accuracy, ensuring operational reliability in safety-critical applications. The sensor utilizes Hall effect technology adapted for fluxgate principles, providing robust performance in photovoltaic and power systems.

Current Sensors Feature Summary

• Closed-loop fluxgate architecture for precise residual current detection
• Integrated self-test capability verifying internal circuitry and measurement accuracy
• Single pass-through design facilitating straightforward installation of grounding conductors

Current Sensors Applications

• Photovoltaic system leakage current monitoring
• Industrial power management safety circuits
• Residual current protection devices requiring high reliability

Current Sensors Procurement Notes

Verify the specific suffix SP10 against the manufacturer's latest documentation to confirm pinout and packaging details. Ensure that the self-test interface requirements align with the host microcontroller's voltage levels and timing constraints. Cross-reference the datasheet for thermal limits and mounting specifications before finalizing the procurement order.

Current Sensors Selection Notes

Select this component when measuring residual currents up to 1A with stringent accuracy requirements. The closed-loop fluxgate design offers superior linearity compared to open-loop alternatives. Consider the self-test feature if system safety standards require periodic functional verification of the sensor hardware without external test equipment.

Current Sensors Part Context

The CTSR series represents LEM's specialized line of residual current sensors based on fluxgate technology. These sensors are engineered for applications where detecting small leakage currents is critical for safety. The CTSR 1-P/SP10 belongs to this family, offering a balance between sensitivity and robustness for industrial and renewable energy environments.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult LEM official resources for potential obsolescence notices or direct replacements within the CTSR series.