CTD3X2505AXXX

Overview

The Carlo Gavazzi CTD3X2505AXXX is a solid core current transformer designed for industrial applications. It features a primary current rating of 250 A and a secondary output of 5 A, providing a standard 50:1 transformation ratio. The device operates within a frequency range of 48 Hz to 62 Hz, with some sources citing 45 Hz to 65 Hz. It utilizes screw termination for electrical connections and supports busbar mounting styles. Physical dimensions include a height of 109 mm, length of 77 mm, and width of 42 mm. The unit accommodates a hole diameter of 41 mm and a maximum busbar width of 51 mm. It functions reliably within an operating temperature range of -25 °C to +60 °C.

Feature Summary

• Solid core construction eliminates the need for splitting or opening the magnetic circuit during installation.
• Integrated DIN rail mounting holder allows for secure attachment to standard industrial rails.
• Designed for direct busbar integration with specific dimensional tolerances for conductor clearance.

Applications

• Industrial power distribution monitoring systems
• Electrical panel metering and protection circuits
• Energy management and load balancing applications

Procurement Notes

Verify that the required accuracy class meets the specific application needs, as documentation references Class 1 at 6.5 VA. Confirm that the physical busbar dimensions fall within the specified 41 mm hole diameter and 51 mm maximum width constraints. Ensure the operating environment remains within the stated temperature limits of -25 °C to +60 °C to maintain performance integrity.

Selection Notes

Select this model when a 250 A primary current rating is required for solid core sensing. The integrated DIN rail mount simplifies installation compared to separate bracket solutions. Consider the 5 A secondary output compatibility with existing metering infrastructure. Verify that the frequency range aligns with the system's operational requirements before finalizing the component choice.

Part Context

This component belongs to the CTD3 series of current transformers from Carlo Gavazzi. The series is characterized by solid core designs suitable for fixed installations. The CTD3X2505AXXX variant specifically addresses higher current ranges up to 250 A while maintaining standard secondary outputs for widespread compatibility with industrial measurement devices.

Replacement Considerations

The CTD2X505AXXX serves as a substitute for lower current applications requiring a 50 A primary rating. Both models share similar solid core construction and mounting characteristics but differ significantly in current capacity. Ensure the replacement part number matches the specific current requirements of the circuit being monitored.