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Product Detailed Parameters
- Description：CT, Indoor, Model: 5, Ratio: 500
- Series：Omega 30
- Mfr：Instrument Transformer
- Package：Retail Package
- Frequency Range：50Hz ~ 400Hz
- Type：Non-Invasive (Solid Core)
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：100:01:00
- DC Resistance (DCR)：-
- Ratings：-
- Mounting Type：Panel Mount
- Size / Dimension：3.780" L x 3.530" W (96.01mm x 89.66mm)
- Height - Seated (Max)：1.100" (27.94mm)
- Termination Style：Stud
- Turns Ratio - Primary:Secondary：500:05:00
- Current Rating (Amps)：500 A
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Overview
The 5SFT-501 is a single-phase current transformer manufactured by Crompton Instruments, part of the TE Connectivity portfolio. It features a solid core design with a 1.56-inch (40 mm) aperture diameter and panel mounting configuration. The unit operates at a turns ratio of 500:5, providing a 5 A secondary output for primary currents up to 500 A. It supports a frequency range of 50 Hz to 400 Hz and offers a 20 VA burden rating. Accuracy class is defined as Class 1. The device utilizes brass stud terminals for secure electrical connections.
Feature Summary
- Single-phase construction with solid core architecture
- Panel mounting design with brass stud terminals
- Class 1 accuracy for precise measurement applications
Applications
- Connection to ammeters for current monitoring
- Integration with wattmeters for power measurement
- Cross-current compensation systems
Procurement Notes
Verify the specific manufacturer designation, as the component is produced under the Crompton Instruments brand within the TE Connectivity family. Confirm that the required accuracy class matches the Class 1 specification documented in official datasheets. Ensure the application environment supports the 50-400 Hz frequency range and that the 20 VA burden capacity meets the connected instrument requirements before procurement.
Selection Notes
Select this model when a 500:5 ratio is required for single-phase circuits operating between 50 Hz and 400 Hz. The 1.56-inch aperture accommodates standard busbar or cable sizes fitting within the 40 mm window. Consider the panel mount form factor and brass stud terminal interface for installation compatibility. This unit is suitable for indoor environments requiring Class 1 measurement precision.
Part Context
The 5SFT-501 belongs to the 5SFT series of instrument transformers designed for electric metering and measuring devices. Originally associated with GE ITI and Crompton Instruments, these components are now distributed through TE Connectivity. The series provides reliable current transformation for industrial and commercial electrical systems, ensuring accurate data transfer to downstream instrumentation.
