Overview
Simpson Electric 01293 is a precision current transformer designed for measurement and control applications. The 01293 is a 10:1 donut current transformer with 50A primary and 5A secondary current ratings. It is moulded from impact and abrasive resistance black nylon for rugged construction, making it suitable for both panel and switchboard mounting in industrial environments.
Key Features
- Meets A.S.A. C57.13 standard and carries UL File # E93779
- 10:1 turns ratio with 2% accuracy and 2VA burden rating
- Flexible leads are UL105, 105°C CSA approved
- Molded from impact and abrasive resistance black nylon for rugged construction
- Insert one turn primary type for use with switchboard and panel ammeters where external transformers are required
Technical Specifications
This donut current transformer operates at 50:5 ampere ratio, Class 2 accuracy, with 2 VA burden rating and 40 mm window diameter, across 50Hz to 400Hz frequency range. The unit features molded nylon construction with integrated lead wires (approximately 2 feet in length) and is rated for AC ammeter applications where precise current measurement is required.
Typical Applications
- For use with AC analog and digital ammeters, insert one turn primary type for use with switchboard and panel ammeters where external transformers are required
- Industrial control and monitoring systems
- Metering and power quality analysis circuits
- Electrical distribution panel installations
- Process control automation where current monitoring is required
Compatibility & Replacements
Compatible With
- AC analog ammeters and digital ammeters
- Switchboard and panel-mounted meter applications
- Industrial control and monitoring systems supporting 50–400 Hz frequency range
- Systems requiring Class 2 accuracy current measurement at 50:5A transformation ratio
Replaces / Drop-In Replacement For
The Simpson 01293 is a standard donut current transformer configuration. Verify exact interchangeability with your system integrator or meter manufacturer before ordering, as transformer impedance and burden ratings must match your application’s requirements.
Works With
- AC ammeter circuits (analog and digital)
- Control transformers and measurement instrumentation
- AC systems operating at 50 Hz, 60 Hz, or other frequencies within the 50–400 Hz range
- Standard meter terminals and lugs for panel and chassis mounting
