2SFT-121

Overview

The Sifam Tinsley 2SFT-121 is a current sense transformer belonging to the Omega 30A ANSI series. It features a turns ratio of 120:5 and operates within a frequency range of 50Hz to 400Hz. The unit utilizes panel mounting with terminal connections and includes a foot mount for stability. The internal bore diameter measures 1.13 inches, accommodating primary conductors.

Feature Summary

• ANSI standard compliance for industrial applications
• Wide frequency operational range from 50Hz to 400Hz
• Robust panel mount construction with foot support

Applications

• Industrial power monitoring systems
• Electrical protection relay circuits
• Energy metering installations

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to ensure correct terminal configuration and mechanical dimensions. Confirm that the required frequency range aligns with the 50Hz to 400Hz specification. Cross-reference the 120:5 ratio and 1.13-inch bore size with system design requirements before procurement.

Selection Notes

Select this component when an ANSI-compliant current transformer is required for frequencies up to 400Hz. Ensure the primary conductor fits within the 1.13-inch inner diameter. Verify that the 120:5 step-down ratio matches the input requirements of the connected secondary instrumentation or relay devices.

Part Context

This model is part of the Omega 30A series, designed for precise current sensing in electrical distribution networks. It serves as a critical interface between high-current primary lines and low-current measurement equipment, ensuring accurate data transmission for monitoring and control purposes.

Replacement Considerations

Consult official substitution lists for compatible models with identical ratios and mounting styles.