2SHT-251

Overview

The Sifam Tinsley Instrumentation Inc. model 2SHT-251 is a panel-mount current transformer designed for industrial applications. It features a turns ratio of 250:5 and operates within a frequency range of 50Hz to 400Hz. The unit supports a maximum input current of 250A with a secondary output of 5A. Physical dimensions are approximately 68.83mm in length, 60.96mm in width, and 23.87mm in height. It is rated for 600V systems.

Feature Summary

• Provides accurate current sensing via a 250:5 transformation ratio
• Supports wide frequency operation from 50Hz to 400Hz
• Designed for secure panel mounting installation

Applications

• Industrial power monitoring systems
• Electrical distribution panels
• Current measurement for protection relays

Procurement Notes

Verify the specific voltage rating and accuracy class requirements against your system specifications before ordering. Confirm that the panel cutout dimensions align with the physical size of the 2SHT-251 unit. Ensure compatibility with the connected metering or relay devices requiring a 5A secondary input signal.

Selection Notes

Select this component when a 250A primary current range is required for panel-mounted monitoring. The 50Hz-400Hz frequency range makes it suitable for standard power frequencies and some variable frequency drive outputs. Consider the 600V insulation rating for medium-voltage distribution applications.

Part Context

This part belongs to the Sifam Tinsley Instrumentation Inc. portfolio of electrical measurement components. The manufacturer specializes in precision instrumentation including analog and digital meters, transducers, and shunts. The 2SHT-251 serves as a critical interface for converting high primary currents into standardized secondary signals for measurement devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify exact dimensional and electrical parameter matches if sourcing alternatives.