5RL-401

Current Sense Transformers Overview

The Sifam Tinsley Instrumentation Inc. 5RL-401 is a panel-mount current transformer designed for AC measurement applications. It features a toroidal core with a 400:5 turns ratio, supporting primary currents up to 400 A and secondary outputs of 5 A. The unit operates within a frequency range of 50 Hz to 400 Hz and includes a 1.56-inch inner diameter window. It provides an insulation level of 600 Volts with a 10 kV BIL full-wave rating. The device complies with ANSI standards and holds UL and CSA approvals for indoor use.

Current Sense Transformers Feature Summary

• Complies with ANSI standards and holds UL and CSA approvals for indoor electrical environments
• Features a toroidal design with a 1.56-inch inner diameter window for conductor passage
• Provides precise current transformation with a 400:5 ratio for metering compatibility

Current Sense Transformers Applications

• Integration with analog or digital ammeters for current monitoring
• Connection to wattmeters for power measurement systems
• Cross-current compensation circuits in industrial panels

Current Sense Transformers Procurement Notes

Verify that the specific order matches the 5RL-401 designation, as variants like 2RL-401 differ in mounting style. Confirm the requirement for the Omega 30B case size and 24-inch lead configuration if applicable. Ensure the application environment remains indoors and does not exceed the 600-volt insulation rating. Check for compliance with local electrical codes regarding UL and CSA approval requirements before finalizing procurement.

Current Sense Transformers Selection Notes

Select this component when a panel-mounted solution is required rather than free-hanging alternatives. The 400:5 ratio suits standard 5A secondary instrumentation. Consider the 1.56-inch window size against the conductor diameter. Verify frequency compatibility between 50Hz and 400Hz. Choose this model over solid-core types if toroidal geometry is preferred for installation flexibility.

Current Sense Transformers Part Context

This current transformer belongs to the Omega 30B series from Sifam Tinsley Instrumentation Inc. The brand specializes in precision electrical measurement products, including analog and digital panel meters. The 5RL-401 serves as a sensing interface for their broader instrumentation ecosystem, providing accurate signal conversion for industrial and commercial metering applications.

Current Sense Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify mechanical dimensions and terminal configurations before considering alternative manufacturers. Ensure any replacement maintains the 400:5 ratio and 600V insulation rating.