5SFT-151

Overview

The Sifam Tinsley Instrumentation Inc. model 5SFT-151 is a window-type current transformer designed for panel mounting applications. It features a primary-to-secondary turns ratio of 150:5 and operates within a frequency range of 50Hz to 400Hz. The device has an aperture size of 40mm and carries a Class 1 accuracy rating with a burden capacity of 5 VA. This component is non-ANSI rated and serves as a sensing element for electrical measurement systems requiring precise current transformation.

Feature Summary

• Window-type construction for easy installation around conductors
• Class 1 accuracy rating for reliable measurement performance
• Operates across a wide frequency spectrum from 50Hz to 400Hz

Applications

• Panel mounted electrical monitoring systems
• Current sensing in industrial power distribution
• Integration with ammeters or data acquisition modules

Procurement Notes

Verify the specific application requirements against the 150:5 ratio and 5 VA burden limit before ordering. Confirm that the conductor diameter fits within the 40mm aperture. Ensure the operating frequency falls within the 50Hz to 400Hz range. Check if the non-ANSI rating meets your regulatory compliance needs. Contact the manufacturer for detailed mechanical drawings if space constraints are critical.

Selection Notes

Select this model when a 150:5 transformation ratio is required for currents up to 150A. Consider the 40mm window size to ensure compatibility with existing busbars or cables. Evaluate the 5 VA burden to ensure it matches the input impedance of the connected measuring instrument. The 50Hz to 400Hz frequency range supports standard power and some variable frequency applications.

Part Context

This component belongs to the 5SFT series of current transformers manufactured by Sifam Tinsley Instrumentation Inc. The series includes various ratios and aperture sizes, such as the 5SFT-101 and 5SFT-751. These devices are designed for precision electrical measurement and are commonly used in industrial instrumentation panels where accurate current monitoring is essential for system operation and safety.

Replacement Considerations

Direct substitutes include other models from the same 5SFT series with matching specifications. Verify that any replacement maintains the 150:5 ratio, 40mm aperture, and Class 1 accuracy. Ensure the new part also supports the 50Hz to 400Hz frequency range and 5 VA burden. Cross-reference with distributor databases for equivalent parts from other manufacturers if availability is an issue.