Overview
The ABB 6353C97H01 is a BYZ-5 type current transformer engineered for accurate current measurement and isolation in electrical power systems. This industrial-grade instrument transformer converts high primary currents to standardized low secondary signals suitable for metering devices, protective relays, and monitoring equipment. The unit’s robust construction and proven ABB design ensure dependable operation across a wide range of industrial applications.
Key Features
- BYZ-5 design optimized for low-voltage switchgear integration
- Wide frequency response from 25 Hz to 400 Hz accommodates various power system configurations
- 10 kV basic insulation level (BIL) provides enhanced dielectric strength
- Precision 50:5 current ratio enables standard secondary measurements
- Compact form factor fits within standard switchgear window openings
Technical Specifications
- Primary Current Rating: 50A
- Transformation Ratio: 50:5
- Primary Voltage: 800V
- Basic Insulation Level (BIL): 10 kV
- Frequency Range: 25–400 Hz
- Transformer Type: BYZ-5
- Accuracy Class: Metering/Relay grade
- Connection: 4-lead configuration
- Condition: New, no original box
Typical Applications
- Low-voltage distribution switchgear current metering circuits
- Protective relay supply and coordination schemes
- Power monitoring and energy management systems
- Industrial and commercial electrical measurement
- UL-recognized component integration in OEM equipment
Compatibility & Replacements
The ABB 6353C97H01 is a direct replacement for equivalent BYZ-5 50A / 50:5 ratio instruments from ABB’s legacy switchgear lines. Engineers should verify window diameter (typically 4.75 inches) and mounting orientation before installation. Secondary burden and accuracy class requirements must be matched to the connected protection and metering devices. ABB instrument transformer reference guides and application bulletins provide detailed compatibility matrices for equivalent types.
