CR7ARL-401

Current Sense Transformers Overview

The CR7ARL-401 is an AC current transformer from the CR Magnetics CR7A series, designed for commercial and metering class applications. It features a non-invasive solid core design with a 2.5-inch inner diameter, allowing it to be installed around conductors without breaking the circuit. The unit supports an input range of 0 to 400 AAC and provides a corresponding output of 0 to 5AAC. Operating within a frequency range of 50Hz to 400Hz, it utilizes free-hanging in-line mounting with two 16AWG fly leads for connection.

Current Sense Transformers Feature Summary

• Non-invasive solid core construction for easy installation around existing conductors
• ANSI Metering Class accuracy suitable for precise energy monitoring applications
• Free-hanging in-line mounting configuration with integrated 16AWG fly leads

Current Sense Transformers Applications

• Commercial electrical metering systems requiring accurate current measurement
• Energy monitoring equipment utilizing standard 5A secondary outputs
• Industrial power distribution panels needing non-invasive current sensing

Current Sense Transformers Procurement Notes

Verify that the required conductor size fits within the specified 2.5-inch inner diameter before procurement. Confirm that the system frequency falls within the 50Hz to 400Hz operational range. Ensure the load connected to the secondary terminals does not exceed the burden capacity implied by the 5A output rating. Check that the 16AWG fly lead length meets the installation distance requirements between the transformer and the measuring instrument.

Current Sense Transformers Selection Notes

Select this model when a non-invasive solution is required for currents up to 400A. The 5A secondary output is compatible with standard analog meters and many digital transducers. Consider the physical dimensions of the donut style housing to ensure adequate clearance in the panel. This component is appropriate for applications where circuit interruption during installation is not feasible or desirable.

Current Sense Transformers Part Context

This part belongs to the CR7A series of current transformers manufactured by CR Magnetics Inc. The series includes various models with different current ratings and aperture sizes, all sharing similar ANSI Metering Class performance standards. These components are widely used in the energy monitoring sector as professional sensors for current, voltage, and power factor measurements.

Current Sense Transformers Replacement Considerations

Direct substitutes must match the 400:5 ratio, 2.5-inch ID, and 50-400Hz frequency range. Verify that any alternative maintains the same ANSI Metering Class accuracy and physical mounting constraints. Cross-reference specific burden ratings and insulation levels if operating in harsh environments.