CR4420-20

Current Sensors Overview

The CR4420-20 is a solid-core, single-element average RMS AC current transducer manufactured by CR Magnetics Inc. It features a 20A primary current rating and provides a proportional output signal suitable for industrial monitoring. The device operates within a frequency range of 50Hz to 400Hz and delivers an accuracy of ±0.5%. It supports bidirectional measurement and includes a 250ms response time for step changes. Power consumption is limited to a maximum of 45mA at a 24V supply voltage. The module design allows for flexible installation via DIN rail or panel mounting methods.

Current Sensors Feature Summary

• Average RMS measurement capability for sinusoidal alternating current waveforms
• Bidirectional sensing architecture for dual-polarity current detection
• Solid core construction eliminating the need for secondary winding connections
• Integrated conditioning circuitry providing standardized analog output

Current Sensors Applications

• Industrial motor drive current monitoring
• Power distribution system protection schemes
• Energy management and load balancing systems
• Automated manufacturing equipment control loops

Current Sensors Procurement Notes

Verify that the specific order matches the 20A primary rating variant within the CR4420 series. Confirm the required output signal type aligns with system input requirements. Ensure environmental conditions remain within the specified operational temperature limits. Check for any specific mounting hardware requirements associated with DIN rail or panel installation configurations.

Current Sensors Selection Notes

Select this model when precise average RMS measurement of AC currents up to 20A is required. Consider the 50Hz to 400Hz frequency range compatibility with the target power source. Evaluate the bidirectional feature necessity for applications involving reversible power flow. Compare response time specifications against system dynamic requirements.

Current Sensors Part Context

This component belongs to the CR4420 series of current transducers from CR Magnetics Inc. The series offers various primary current ratings including 10A and 20A variants. These devices share common architectural features such as solid-core designs and similar accuracy specifications. The series is designed for integration into broader industrial sensor networks requiring reliable AC current data.

Current Sensors Replacement Considerations

Direct substitutes include other CR4420 series models with different primary ratings if current capacity differs. Cross-reference technical specifications with equivalent products from manufacturers offering solid-core AC current transducers. Verify compatibility of mounting styles and output signal types before substitution.