7RL-301

Current Sense Transformers Overview

The 7RL-301 is a current sense transformer from the Sifam Tinsley Instrumentation Inc. product line, designed for panel mounting applications. It operates within a frequency range of 50Hz to 400Hz and features a turns ratio of 300:5. The device supports an input current of 300A with a corresponding output of 5A. Physical dimensions include a hole size of 26mm, overall height of 70mm, width of 50mm, and depth of 44.5mm. It is classified as a free-hanging in-line transformer suitable for industrial measurement environments.

Current Sense Transformers Feature Summary

• Provides electrical isolation between primary circuit and secondary measurement devices through transformer coupling.
• Supports wide frequency operation ranging from 50Hz to 400Hz for versatile AC current monitoring.
• Features a standardized 300:5 turns ratio to interface directly with standard 5A ammeters or data acquisition systems.

Current Sense Transformers Applications

• Industrial power distribution panel monitoring
• Electrical cabinet current sensing
• Energy management system integration

Current Sense Transformers Procurement Notes

Verify that the required operating frequency falls within the 50Hz to 400Hz specification before procurement. Ensure the primary circuit current does not exceed the rated 300A limit. Confirm that the panel cutout dimension matches the specified 26mm hole size requirement for proper installation. Check compatibility with downstream 5A receiving instruments.

Current Sense Transformers Selection Notes

Select this model when a robust, isolated current sensing solution is needed for frequencies up to 400Hz. Consider the physical dimensions (50 x 44.5 x 70 mm) for panel space constraints. This unit is appropriate for applications requiring a 300:5 step-down ratio without active electronic components.

Current Sense Transformers Part Context

This component belongs to the Sifam Tinsley Instrumentation Inc. catalog, a manufacturer known for providing measurement and control solutions. The brand has a history of supplying both analog and digital instrumentation across various market segments including energy and manufacturing.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify exact dimensional and electrical specifications against any potential alternative models to ensure functional compatibility.

Current Sense Transformers FAQ

What is the maximum operating frequency for the 7RL-301?

The maximum operating frequency is 400Hz.

What is the primary current rating of this transformer?

The primary input current rating is 300A.