CT-0075-D10

Overview

The Littelfuse CT-0075-D10 is a non-invasive solid core current transformer designed for use in control circuits. It features a donut-style construction with a 1-inch (25.4 mm) window aperture, allowing for the insertion of conductors without breaking the circuit. The device provides a standard 75:5 current ratio, converting primary currents up to 75 A into secondary outputs suitable for metering or protection devices. It is engineered to operate within 24 VAC control environments and supports free-hanging inline mounting configurations.

Feature Summary

• Non-invasive solid core design enables installation without interrupting the primary conductor
• Donut style construction with a 1-inch window accommodates various wire sizes
• Standardized 75:5 current ratio ensures compatibility with common instrumentation inputs

Applications

• Integration into 24VAC control circuits for monitoring electrical loads
• Metering applications requiring accurate current measurement in industrial settings
• Protection schemes involving electric heating elements or air conditioning systems

Procurement Notes

Verify that the required primary current does not exceed 75 A and that the operating environment remains within 24 VAC specifications. Confirm that the conductor diameter fits within the 1-inch window clearance. Ensure the application utilizes compatible 5 A secondary rated devices. Check for any specific mounting hardware requirements for free-hanging installations.

Selection Notes

Select this component when a non-invasive solution is required for currents up to 75 A. The 75:5 ratio is appropriate for standard analog input devices. Consider the 1-inch window size if larger gauge wires are present. This model is suitable for indoor control panel applications where space allows for inline mounting.

Part Context

This part belongs to the Littelfuse CT Series of current transformers. These components are generally used for sensing alternating current in industrial and commercial electrical systems. The series offers various ratios and window sizes to match different load requirements and physical constraints.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing wiring and secondary device ratings before considering alternative models from other manufacturers.