TT 100-SD

Overview

The TT 100-SD is a split-core current sense transformer designed for the electronic measurement of AC waveform currents. It provides galvanic separation between the primary circuit and the secondary circuit, ensuring safety and signal integrity. The device features a 16mm bore diameter to accommodate primary conductors. It operates with an input range of 0 to 100A at 50/60Hz frequencies. The output ratio is 100:1, delivering a typical current of 33.33 mA per ampere of primary input. This self-powered design eliminates the need for external excitation voltage.

Feature Summary

• Split-core construction allows installation without disconnecting the primary conductor
• Galvanic isolation separates primary high-voltage circuits from secondary measurement electronics
• Self-powered operation requires no auxiliary power supply for basic function
• Compact form factor secured by cable tie for rapid deployment

Applications

• Electronic measurement of AC waveform currents in industrial systems
• Current monitoring in power distribution networks
• Integration into protection relays requiring isolated current signals
• Energy metering applications for AC line currents

Procurement Notes

Verify that the specific order matches the TT 100-SD designation to ensure correct 100A rating and 16mm bore dimensions. Confirm compatibility with existing panel mounting constraints due to the split-core design. Request manufacturer datasheets to validate electrical characteristics against system requirements before finalizing procurement.

Selection Notes

Select this component when non-intrusive installation on existing busbars or cables is required. The 16mm bore size dictates the maximum primary conductor diameter. Ensure the application involves AC currents within the 0-100A range. Consider the 33.33mA output level for downstream signal conditioning circuitry compatibility.

Part Context

This part belongs to the LEM TT Series of current transformers. These devices are engineered for robust performance in demanding industrial environments. The series offers various ratings to suit different current magnitudes while maintaining consistent physical interface standards for easy integration into control panels.

Replacement Considerations

No public confirmed substitute part numbers are available.