CT300A

Overview

The CT300A is a toroidal current transformer from the Hammond Manufacturing CT series, designed for chassis mounting. It features a primary current rating of 300 A and a secondary current rating of 5 A, resulting in a turns ratio of 300:5. The device has a power rating of 10 VA and a primary voltage rating of 600 V. Physical dimensions include a length of 4.25 inches, width of 1.75 inches, and height of 4.75 inches. It utilizes wire leads for termination.

Feature Summary

• Toroidal core construction for efficient magnetic coupling
• Chassis mount design for secure industrial installation
• Wire lead termination for straightforward circuit integration

Applications

• Industrial automation systems requiring current monitoring
• Electrical panel metering and measurement circuits
• Power distribution equipment protection schemes

Procurement Notes

Verify that the application requires a 300:5 ratio and 10 VA burden capacity to ensure compatibility with existing instrumentation. Confirm chassis mounting space accommodates the specified physical dimensions. Ensure the primary conductor fits within the toroidal window. Check for RoHS compliance requirements if applicable to the project specifications.

Selection Notes

Select this model when a high primary current rating of 300 A is necessary for accurate step-down to 5 A secondary output. Consider the 600 V primary voltage rating for medium-voltage applications. Evaluate the 10 VA power rating against the connected load impedance to prevent saturation. Compare physical size constraints against alternative models in the CT series if space is limited.

Part Context

This component belongs to the Hammond Manufacturing CT series of industrial current transformers. These devices are engineered for robust performance in demanding electrical environments. The series offers various ratios to suit different current levels while maintaining consistent toroidal geometry and chassis mounting standards across the product line.

Replacement Considerations

The CT200A serves as a substitute option for applications requiring a lower 200:5 ratio and reduced 2 VA power rating. Verify that the replacement meets all electrical and mechanical requirements before implementation.