CR7SFT-401

Overview

The CR7SFT-401 is a commercial class AC current transformer manufactured by CR Magnetics Inc. It features a non-invasive solid core design suitable for chassis mounting applications. The device operates within a frequency range of 50Hz to 400Hz. It supports an input current range of 0 to 400 AAC and provides an output current range of 0 to 5AAC, resulting in a current ratio of 400:5. The unit includes two terminals rated for #8-32 connections.

Feature Summary

• Non-invasive solid core construction for direct conductor insertion
• Commercial grade performance for standard industrial environments
• Chassis mount configuration with dual terminal connections

Applications

• AC current monitoring in power distribution systems
• Industrial equipment protection circuits
• Energy metering applications within specified frequency ranges

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to ensure correct terminal type and mounting specifications. Confirm that the operating frequency range of 50Hz to 400Hz aligns with the target application requirements before procurement. Cross-reference the 400A input rating with system load data to prevent saturation or measurement errors during operation.

Selection Notes

Select this component when a non-invasive sensing solution is required for currents up to 400A. Ensure the installation environment accommodates the chassis mount form factor. Validate that the system frequency falls within the 50Hz to 400Hz operational window. Consider the physical dimensions and terminal spacing for integration into existing control panels or enclosures.

Part Context

This model belongs to the CR7 series of current sense transformers from CR Magnetics Inc. The series is designed for commercial applications requiring reliable AC current measurement. The CR7SFT-401 specifically addresses high-current monitoring needs using a solid core architecture, distinguishing it from window-type variants like the CR76SFT-401 which offer different aperture sizes.

Replacement Considerations

Direct substitutes are not explicitly confirmed in public documentation. Evaluate equivalent models from CR Magnetics such as the CR5SFT-401 for similar electrical characteristics. Verify mechanical compatibility and terminal configurations when considering alternative part numbers from other manufacturers.