19SHT 401

Overview

The Sifam Tinsley 19SHT-401 is an ANSI-rated solid core AC current transformer designed for panel mounting. It features a 400:5 turns ratio, supporting a primary input current of 400 A and a secondary output of 5 A. The device operates within a frequency range of 50 Hz to 400 Hz and provides ±1% accuracy. It utilizes a 4.25-inch diameter sensing window and includes an 8-32 terminal stud with nut for connections. The unit is classified as Class 1 with a 10 VA burden rating.

Feature Summary

• ANSI rated construction for standardized compliance
• Solid core design for non-invasive installation
• Panel mount configuration with foot mounting capability

Applications

• Electrical power measurement systems
• Industrial control panel integration
• Current monitoring in AC distribution networks

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required terminal configurations and mounting styles. Confirm that the ANSI rating aligns with local regulatory requirements for the intended application environment. Cross-reference the 10 VA burden specification with downstream instrument inputs to prevent overload conditions during operation.

Selection Notes

Select this model when a 400:5 ratio and 400 A primary capacity are required for panel-mounted applications. Ensure the 4.25-inch window size accommodates the conductor or busbar dimensions. Verify that the 50-400 Hz frequency range matches the system operating conditions and that the Class 1 accuracy meets measurement precision needs.

Part Context

This component belongs to the Omega 30 series of current transformers from Sifam Tinsley. The series offers various ratios and window sizes for different current levels. The 19SHT variant specifically denotes an ANSI-rated model with terminal studs, distinguishing it from non-ANSI or DIN-rail mounted alternatives within the product family.

Replacement Considerations

Direct substitutes include other ANSI-rated 400:5 current transformers with compatible 4.25-inch windows and 10 VA ratings. Verify mechanical mounting hole patterns and terminal stud specifications before substitution.