2SFT-401

Overview

The Sifam Tinsley Instrumentation Inc. model 2SFT-401 is a precision current transformer designed for accurate measurement of alternating currents in industrial and power distribution environments. This component operates on electromagnetic induction principles to step down high primary currents to manageable secondary levels suitable for metering and protection relays. It features a toroidal core construction which provides high magnetic efficiency and low leakage flux, ensuring reliable performance under varying load conditions. The device is engineered to meet stringent accuracy standards required for billing and monitoring applications.

Feature Summary

• Toroidal core design for enhanced magnetic coupling
• High accuracy class for precise current measurement
• Robust insulation suitable for industrial environments

Applications

• Electricity metering installations
• Power distribution panel monitoring
• Industrial process control systems

Procurement Notes

Verify the specific accuracy class and burden rating against your system requirements before purchase. Confirm that the primary current rating matches the expected maximum load in the circuit. Ensure the physical aperture size accommodates the conductor or busbar being monitored. Check for any special mounting hardware requirements specified in the official datasheet to guarantee secure installation and long-term reliability.

Selection Notes

Select this model based on its suitability for fixed installation in switchgear or panels where space is limited due to its compact toroidal form factor. Consider the frequency range compatibility with your power system, typically 50Hz or 60Hz. Evaluate the thermal stability if the installation environment experiences significant temperature fluctuations. Ensure the secondary output matches the input specifications of your connected measuring instruments or relay devices.

Part Context

This component belongs to the series of current transformers manufactured by Sifam Tinsley Instrumentation Inc., specializing in electrical measurement solutions. These devices are integral parts of larger electrical infrastructure, providing isolated signals proportional to the main circuit current. They support grid management and energy auditing by delivering data to supervisory control and data acquisition systems.

Replacement Considerations

When replacing existing units, ensure the new part matches the original primary current rating and secondary output specifications exactly. Verify that the physical dimensions and mounting hole patterns are compatible with the existing enclosure. Consult official substitution lists from the manufacturer for direct equivalent models if the exact part number is discontinued.