CRZ8445-2K5W

Overview

The CRZ8445-2K5W is a current sense transformer manufactured by CR Magnetics Inc. It features a 1:2000:5 current ratio and operates within a frequency range of 50Hz to 60Hz. The component has a secondary DC resistance of 115 Ohms and utilizes a free-hanging in-line mounting type.

Feature Summary

• Non-invasive current sensing capability for AC applications
• High isolation voltage design suitable for power monitoring
• Precision current transformation with defined ratio

Applications

• Power quality monitoring systems
• Energy metering equipment
• Industrial motor protection circuits

Procurement Notes

Verify the specific datasheet version for the CRZ8445-2K5W to confirm mechanical dimensions and insulation ratings prior to integration. Ensure that the operating environment temperature range aligns with the manufacturer's specifications for long-term reliability. Cross-reference the pinout configuration with the target PCB layout to guarantee correct signal polarity and connection integrity during assembly processes.

Selection Notes

Select this component when a high-isolation current transformer is required for 50Hz or 60Hz mains frequency applications. The 1:2000:5 ratio provides a standardized output for downstream processing. Consider the free-hanging form factor for applications requiring flexible wiring connections rather than rigid board-mounted solutions. Validate thermal performance under continuous load conditions.

Part Context

This part belongs to the CR Magnetics current sense transformer family, designed for accurate AC current measurement. It serves as a critical interface between high-voltage primary circuits and low-voltage secondary monitoring electronics. The series is engineered for robust performance in industrial and utility-grade power distribution environments.

Replacement Considerations

Direct substitutes include the CRZ8345-2K5W (1:1000:5 ratio) and CRZ8465-2K5W (Zero Sequence variant). Verify that the alternative part number matches the required current ratio and frequency range before substitution.