CR8410-1000

Overview

The CR8410-1000 is a general-purpose current sense transformer manufactured by CR Magnetics Inc. It features a solid core design with wire lead termination for free-hanging installation. The component supports a rated current of 20 A and operates within a frequency range of 20 Hz to 1 kHz. It provides a current ratio of 1000:1 and has a DC resistance (DCR) of 41 Ohms.

Feature Summary

• Non-invasive solid core construction for direct conductor sensing
• Wire lead termination style for flexible mounting configurations
• High turns ratio of 1000:1 for precise signal isolation

Applications

• General purpose current monitoring in power supplies
• AC line current sensing in industrial equipment
• Feedback loop integration in motor control systems

Procurement Notes

Verify the specific suffix requirements against the manufacturer's latest documentation, as variants such as the -G suffix may indicate different packaging or processing standards. Confirm that the standard 20-week lead time aligns with project schedules. Ensure the solid core design meets the physical constraints of the target conductor diameter before finalizing procurement orders.

Selection Notes

Select this model when a 20 A rated current and 41 Ohm DCR are required for non-invasive AC current measurement. The 1000:1 ratio suits applications needing high sensitivity for low-level secondary currents. Consider the wire lead format if PCB space is limited but flexible wiring is acceptable. Validate that the operating frequency range of 20 Hz to 1 kHz covers the system's fundamental frequencies.

Part Context

This component belongs to the CR Magnetics general-purpose current transformer family. It utilizes a solid core architecture distinct from split-core alternatives. The part is designed for robust performance in industrial environments, offering reliable isolation between primary conductors and secondary sensing circuits without requiring circuit interruption.

Replacement Considerations

The CR8410-1000-G is a documented variant within the same series. Verify if the -G suffix denotes a specific packaging change or minor parameter adjustment. Other models in the CR8410 series offer different current ratings, such as 7 A, which require re-evaluation of the primary conductor sizing and secondary load calculations.