Overview
The WICC BB-025-05-L36-81 current transformer is a window-type CT designed for accurate measurement and monitoring of alternating current (AC) in industrial control systems, power distribution, and protective relay circuits. Current transformers scale large values of current to small, standardized values that are easy to handle for measuring instruments and protective relays. This unit features a 25:5A transformation ratio, providing a standard 5A secondary output suitable for integration with analog meters, digital displays, and data acquisition systems.
Key Features
- 25:5A current transformation ratio for scaled measurement
- Window-type design allows conductor insertion without disconnection
- Standard 5VAC secondary output suitable for metering and monitoring
- Compact, burden-efficient design minimizes load on primary circuit
- Designed for 60 Hz operation in industrial environments
- Used condition, tested and fully functional
Technical Specifications
- Manufacturer: WICC Ltd.
- Model Number: BB-025-05-L36-81
- Primary Ratio: 25A
- Secondary Ratio: 5A
- Transformation Ratio: 25:5
- Secondary Output: 5VAC
- Type: Window-type (donut style)
- Frequency Rating: 60 Hz
- Condition: Used, fully functional
Typical Applications
The BB-025-05-L36-81 is suitable for:
- AC current metering and monitoring in industrial control cabinets
- Protective relay circuits requiring proportional current feedback
- Data acquisition and SCADA system input modules
- Power distribution equipment and switchgear instrumentation
- Commercial building automation systems
- Field wiring where primary conductor cannot be interrupted
Compatibility & Replacements
Compatible With
- AC metering instruments rated for 5A secondary current
- Industrial PLCs with analog input modules (4-20mA adapters required)
- Protective relay circuits operating at standard 5A secondary
- SCADA systems with CT input boards
- Building automation and energy management systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The BB-025-05-L36-81 window-type design replaces equivalent WICC current transformers with 25:5A ratio and L36 core dimensions. Confirm lead configuration and mounting orientation with original equipment documentation.
Works With
- Standard 5A analog metering instruments and displays
- Industrial control systems using CT secondary inputs
- AC-rated burden circuits up to specified VA rating
- 60 Hz power distribution systems
- Conduit and panel mounting hardware (standard industrial)






