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Product Detailed Parameters
- Description：ANSI CT,300:5,1.13"I.D.,Term Con
- Series：Omega 30
- Mfr：Sifam Tinsley Instrumentation Inc
- Package：Retail Package
- Frequency Range：50Hz ~ 400Hz
- Type：Non-Invasive (Solid Core)
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：60:01:00
- DC Resistance (DCR)：-
- Ratings：-
- Mounting Type：Panel Mount
- Size / Dimension：2.680" L x 2.400" W (68.07mm x 60.96mm)
- Height - Seated (Max)：0.960" (24.38mm)
- Termination Style：Stud
- Turns Ratio - Primary:Secondary：300:05:00
- Current Rating (Amps)：300 A
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Overview
The Sifam Tinsley Instrumentation Inc 2SFT-301 is a window-type current transformer designed for electrical monitoring applications. It features a primary current rating of 300 A and a secondary output of 5 A, establishing a 60:1 transformation ratio. The device supports an operating frequency range from 50 Hz to 400 Hz. It has a circular aperture diameter of 28.7 mm (1.13 inches) and is rated at 8 VA burden. The unit is classified as Class 1 accuracy and utilizes terminal connections for installation.
Feature Summary
- Window-type construction with a 28.7 mm internal diameter for conductor passage
- Provides a precise 60:1 current transformation ratio from 300 A primary to 5 A secondary
- Operates effectively across a broad frequency spectrum ranging from 50 Hz to 400 Hz
Applications
- Electrical panel metering systems
- Current sensing in industrial power distribution
- Broad-spectrum instrument transformer integration
Procurement Notes
Verify that the required aperture size matches the 28.7 mm specification for the conductor being monitored. Confirm that the system burden does not exceed the 8 VA rating to maintain Class 1 accuracy. Ensure the operating frequency falls within the 50 Hz to 400 Hz range. Check terminal connection compatibility with existing wiring infrastructure before finalizing procurement.
Selection Notes
Select this component when a non-ANSI rated window current transformer is required for frequencies up to 400 Hz. The 300:5 ratio suits applications needing standard 5 A secondary outputs. Consider the 28.7 mm hole size for cable fitment. This model is suitable where Class 1 accuracy is sufficient for general monitoring tasks rather than high-precision metrology.
Part Context
The 2SFT-301 belongs to the Sifam Tinsley instrumentation line, which provides analog and digital measurement solutions. As a current sense transformer, it complements their range of panel meters and signal conditioners. The brand emphasizes durability and precision in electrical monitoring equipment for various industrial sectors.
Replacement Considerations
Direct substitutes include other 300:5 window current transformers with similar 28.7 mm apertures and 8 VA ratings. Verify frequency response compatibility up to 400 Hz. Ensure the replacement maintains Class 1 accuracy standards if precision is critical for the application.
