CR8401-1000-G

Overview

The CR8401-1000-G is a current sense transformer manufactured by CR Magnetics Inc., designed for non-invasive current monitoring applications. It features an in-line configuration with a primary current rating of 10 A and a turns ratio of 1000:1. The device operates within a frequency range of 20 Hz to 1 kHz and exhibits a DC resistance of 49 Ohms. Physically, it utilizes wire lead termination and is intended for free-hanging installation. The component is part of the CR8300 series and complies with RoHS3 standards, ensuring suitability for modern electronic assemblies requiring precise current sensing.

Feature Summary

• In-line design for direct circuit integration
• High isolation voltage capability
• Wide frequency response range
• Precision current transformation

Applications

• Motor drive current monitoring
• Power supply feedback loops
• Industrial automation control systems
• Energy metering equipment

Procurement Notes

Verify the specific package variant and termination style against the official datasheet before ordering. Confirm that the 10 A primary rating aligns with the target application's peak current requirements. Ensure compatibility with the 20 Hz to 1 kHz operational bandwidth. Check for any required accessories such as mounting brackets or shielding components specified in the manufacturer's documentation.

Selection Notes

Select this component when a high-isolation, in-line current sensing solution is required for frequencies up to 1 kHz. The 1000:1 ratio provides significant signal attenuation suitable for downstream amplifier stages. Consider the 49 Ohm DC resistance impact on the primary circuit impedance. Evaluate the physical dimensions and wire lead length for PCB or chassis layout constraints compared to through-hole alternatives.

Part Context

This model belongs to the CR8300 series of current sense transformers from CR Magnetics Inc. The series is characterized by robust construction and reliable performance in industrial environments. The CR8401-1000-G specifically offers an in-line form factor, distinguishing it from split-core or through-hole variants within the same product family. It supports applications demanding high accuracy and electrical isolation between primary and secondary circuits.

Replacement Considerations

Cross-reference with other models in the CR8300 series for alternative form factors. Verify if split-core versions are needed for retrofitting existing installations. Ensure replacement parts maintain the same 1000:1 ratio and 10 A rating to preserve system calibration.