19SHT 402

Overview

The Sifam Tinsley Instrumentation Inc. model 19SHT 402 is an ANSI-rated window-type current transformer designed for electrical measurement applications. It features a primary-to-secondary turns ratio of 4000:5 and operates within a frequency range of 50Hz to 400Hz. The unit has a rated burden of 25 VA and meets Class 1 accuracy standards. It utilizes bracket mounting with stud terminals and has a physical aperture dimension of 108 mm.

Feature Summary

• Window-type design for non-invasive installation around conductors
• ANSI rating compliance for standardized industrial use
• Bracket mounting configuration with stud terminals

Applications

• Electrical metering systems requiring high-current measurement
• Industrial power distribution panels
• Protective relay circuits in utility infrastructure

Procurement Notes

Verify the specific accuracy class and burden requirements against your system design before ordering. Confirm that the 108 mm aperture matches the conductor size. Ensure the bracket mounting style is compatible with your panel layout. Check terminal type compatibility with existing wiring. Validate frequency range suitability for your application environment.

Selection Notes

Select this component when a 4000:5 ratio is required for high-current monitoring. Consider the 25 VA burden capacity for connected load limitations. Evaluate the 108 mm window size against available busbar or cable dimensions. Assess the bracket mount option versus other mounting styles for mechanical fit. Review ANSI compliance needs for regulatory adherence.

Part Context

This part belongs to the Omega 30 series of current transformers from Sifam Tinsley. The series provides various ratios and sizes for different current levels. The 19SHT 402 specifically addresses high-current applications up to 4000A primary. It complements lower-ratio models in the product line for comprehensive measurement coverage.

Replacement Considerations

Direct substitutes include other 4000:5 ANSI window CTs with similar 25 VA burden and 108 mm aperture. Verify mounting style and terminal configuration match. Check accuracy class equivalence for critical metering applications.