CR9421-ACA-M

Current Sensors Overview

The CR9421-ACA-M is a current switch sensor manufactured by CR Magnetics Inc., designed for AC current measurement applications. It features a single channel configuration with a detection capacity of 100A. The device utilizes a bidirectional module design, allowing for current sensing in both directions through a single pass-through mechanism. Key operational parameters include a response time of 100ms for the ON state and 250ms for the OFF state. The unit is classified as a current switch within the CR9400 series, providing reliable switching functionality for industrial monitoring systems.

Current Sensors Feature Summary

• Bidirectional current switching capability for AC applications
• Single pass-through module design for direct installation
• High detection capacity of 100A per channel

Current Sensors Applications

• AC current monitoring in industrial power distribution
• Overcurrent protection switching circuits
• Electrical panel integration for load management

Current Sensors Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required mounting configurations and electrical interface standards. Confirm that the 100A rating aligns with the maximum expected load current in the target application. Check for RoHS compliance documentation if environmental regulations apply to the deployment site. Ensure the bidirectional nature meets the circuit's polarity requirements.

Current Sensors Selection Notes

Select this model when a switching output is preferred over an analog signal for AC currents up to 100A. The bidirectional feature is essential for applications where current flow direction may reverse or needs to be monitored in both directions. Consider the 100ms/250ms response times against the system's speed requirements for fault detection or control logic activation.

Current Sensors Part Context

This component belongs to the CR9400 series from CR Magnetics Inc., which specializes in current sensors and transducers. The series includes various models tailored for different current ratings and output types. The CR9421-ACA-M specifically addresses the need for robust, high-current AC switching solutions in modular formats suitable for DIN rail or panel mounting.

Current Sensors Replacement Considerations

The CR9421-ACA is a related variant within the same product line. Verify if the non-M suffix offers identical electrical specifications and mechanical dimensions before substitution. Ensure any replacement maintains the 100A bidirectional switching capability and compatible response times.