MR-3

Current Sense Transformers Overview

The KEMET MR-3 is a board-mount current sensor belonging to the SensCurr 0PH series. It features a chassis mount configuration with an inner diameter of 11.0 mm and an outer diameter of 30.5 mm. The component is rated for a primary current of 60 A at 60 Hz. It exhibits a burden resistance of 30 Ohms. This device functions as a current sense transformer designed for precise current monitoring applications.

Current Sense Transformers Feature Summary

• Provides galvanic isolation between the primary circuit and secondary sensing electronics
• Designed for accurate current monitoring in power conversion systems
• Features a through-hole mounting structure compatible with standard chassis or panel installations

Current Sense Transformers Applications

• Switch-mode power supply (SMPS) current feedback loops
• Motor drive current sensing and protection circuits
• Inverter output current monitoring

Current Sense Transformers Procurement Notes

Verify the specific datasheet revision and manufacturing origin before procurement. Confirm that the 60 A rating and 30 Ohm burden resistance align with the system design requirements. Ensure the physical dimensions of 11.0 mm ID and 30.5 mm OD fit the mechanical enclosure constraints. Check for any RoHS compliance documentation relevant to the production batch.

Current Sense Transformers Selection Notes

Select this component when a robust, high-current transformer is required for 60 Hz operation. The 60 A rating suits medium-power industrial applications. Consider the 30 Ohm burden for voltage drop calculations in the sensing circuit. Evaluate the physical size against available board space. Compare with lower current alternatives if the application demands less capacity.

Current Sense Transformers Part Context

This part belongs to the KEMET SensCurr 0PH family of current sensors. These components are engineered for reliability in demanding electrical environments. The series offers various current ratings and physical sizes to accommodate different power levels. The MR-3 specifically addresses the need for high-current sensing in compact form factors.

Current Sense Transformers Replacement Considerations

Consult official KEMET documentation for qualified substitute part numbers. Verify that any alternative maintains the same 60 A rating, 60 Hz frequency response, and 30 Ohm burden resistance. Ensure mechanical compatibility regarding the 11.0 mm inner diameter and 30.5 mm outer diameter.