7SFT-501

Current Sense Transformers Overview

The Sifam Tinsley Instrumentation Inc. model 7SFT-501 is a window-type current transformer designed for indoor applications. It features a primary-to-secondary current ratio of 500:5 A, delivering a standard 5 A secondary output. The unit supports a maximum operating frequency of 60 Hz and provides a power rating of 25 VA. It is rated for 600 V systems with a 10 kV basic insulation level (BIL). The device utilizes foot mounting with integrated terminals and has an inner diameter of 2.5 inches.

Current Sense Transformers Feature Summary

• Window-type construction for non-intrusive conductor passage
• Integrated foot mounting with terminal connections
• Rated for 600 V systems with 10 kV BIL protection

Current Sense Transformers Applications

• Indoor electrical energy monitoring
• Industrial control system current sensing
• Power distribution circuit measurement

Current Sense Transformers Procurement Notes

Verify the specific manufacturer designation, as this component is also listed under Crompton Instruments (TE Connectivity) with identical technical specifications. Confirm that the required accuracy class meets application needs, as sources indicate Class 1 ratings. Ensure the mounting configuration matches the equipment footprint requirements before finalizing procurement.

Current Sense Transformers Selection Notes

Select this model when a 500:5 ratio is required for 60 Hz indoor environments. The 25 VA burden capacity accommodates standard metering loads. Verify compatibility with 600 V system voltages and confirm that the 2.5-inch window size fits the target conductor dimensions. Foot mounting is suitable for panel installation scenarios requiring terminal access.

Current Sense Transformers Part Context

This component belongs to the 7SFT series of current transformers, widely used in industrial instrumentation. The series includes variants with different ratios and mounting styles. This specific part represents a standard ANSI-rated window type, distinct from the OMEGA series which typically features surface or insert mounting configurations.

Current Sense Transformers Replacement Considerations

Cross-reference with TE Connectivity/Crompton Instruments part number 7SFT-501, which shares identical specifications including the 500:5 ratio, 25 VA rating, and 2.5-inch window size. Ensure mechanical mounting differences are evaluated if substituting between manufacturers.