CR7ARL-751

Current Sense Transformers Overview

The CR7ARL-751 is an AC current transformer manufactured by CR Magnetics Inc., designed for commercial and metering applications. It features a donut-style core with a 2.5-inch inner diameter, allowing it to accommodate conductors of significant size. The device operates within a frequency range of 50Hz to 400Hz. It supports an input current range of 0 to 750 AAC and provides a corresponding output range of 0 to 5AAC. The unit is configured as a free-hanging in-line component, equipped with two 16AWG fly leads for connection.

Current Sense Transformers Feature Summary

• ANSI metering class accuracy suitable for precise current measurement
• Donut style construction with large 2.5-inch inner diameter
• Free hanging in-line mounting configuration
• Integrated 16AWG fly leads for direct wiring

Current Sense Transformers Applications

• Commercial electrical panel metering
• Industrial power monitoring systems
• Current sensing in variable frequency drives
• Electrical distribution protection circuits

Current Sense Transformers Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to ensure compatibility with required accuracy classes and lead lengths. Confirm that the 2.5-inch inner diameter accommodates the target conductor size without interference. Check for any regional certification requirements such as ANSI compliance before finalizing procurement orders.

Current Sense Transformers Selection Notes

Select this model when high-current measurement up to 750A is required in commercial settings. Ensure the operating frequency falls within the 50Hz to 400Hz range. Consider the physical space constraints due to the 2.5-inch ID and the need for free-hanging installation. Verify that the 0-5A output matches the input specifications of the connected measuring instrument or relay.

Current Sense Transformers Part Context

This component belongs to the CR7ARL series of current sense transformers from CR Magnetics Inc. The series offers various current ratings, with the -751 suffix indicating the 750A primary rating. These transformers are engineered for robust performance in industrial environments, providing reliable isolation and accurate signal transformation for downstream electronics.

Current Sense Transformers Replacement Considerations

Direct substitutes include other models within the CR7ARL series with different current ratings, such as CR7ARL-251 or CR7ARL-151, if lower current capacity is acceptable. Cross-brand replacements require matching the 2.5-inch ID, 50-400Hz frequency range, and 0-5A output specification to maintain system integrity.