CR8450-1000

Overview

The CR8450-1000 is a current sense transformer manufactured by CR Magnetics Inc., designed for non-invasive current monitoring applications. It features a solid core construction with a 1000:1 turns ratio, supporting a maximum input current of 100 A RMS. The device operates within a frequency range of 20 Hz to 1 kHz and exhibits a DC resistance of 21 Ohms. Rated for a maximum voltage of 16.5 V RMS, it utilizes wire lead termination for circuit integration. This component belongs to the CR8450 series and is classified as a general-purpose wire lead current transformer suitable for high-ratio sensing tasks.

Feature Summary

• Non-invasive solid core design for direct conductor insertion
• High turns ratio of 1000:1 for precise current scaling
• Wire lead termination style for flexible PCB or harness mounting

Applications

• AC/DC current monitoring in power supplies
• Inverter and motor drive feedback circuits
• Industrial equipment current sensing

Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm electrical characteristics and physical dimensions. Ensure the selected variant matches the required frequency response and current rating for the target application. Cross-reference the part number with authorized distributors to confirm availability and authenticity. Check for any recent updates to the RoHS compliance status or packaging specifications before finalizing procurement orders.

Selection Notes

Select this component when a high isolation ratio and non-invasive measurement are required. The 100 A rating and 20 Hz to 1 kHz bandwidth define its operational limits. Consider the 21 Ohm DC resistance impact on secondary circuit loading. Compare with split-core alternatives if frequent installation removal is necessary. Validate that the 16.5 V RMS voltage rating exceeds the expected induced voltage in the secondary winding under maximum load conditions.

Part Context

This model is part of the CR8450 series from CR Magnetics Inc., which specializes in current sense transformers. The series includes variants with different current ratings and turns ratios, such as the CR8450-2000. These components are engineered for robust performance in industrial and commercial power electronics, offering reliable signal transformation for control and protection systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult the manufacturer directly for equivalent models or verify compatibility with existing designs using technical parameters.