The Ring Type Current Transformer – B7-320055MA110S2 is a high-performance and precision-built device designed for accurate current measurement and reliable protection in electrical power systems. It is engineered using advanced magnetic core technology and premium-grade insulation materials to ensure stable performance, safety, and long service life in industrial and commercial applications.
This model features a ring type (window type) design, which allows quick and easy installation without disconnecting the primary conductor. The conductor or busbar can pass directly through the CT window, making it ideal for both retrofit installations and new panel setups. Its compact and robust construction allows seamless integration into switchgear panels, distribution boards, and control systems.
With a rated primary current of 320A and a secondary current of 5A, this current transformer efficiently steps down high current to a standardized level suitable for measuring instruments such as ammeters, energy meters, and protection relays. This ensures accurate monitoring, effective load management, and enhanced system safety.
The B7-320055MA110S2 delivers high accuracy (Class 1.0, optional Class 0.5), ensuring minimal measurement error and reliable performance under varying load conditions. It is suitable for both metering and protection applications.
Manufactured using a CRGO silicon steel core and epoxy resin cast insulation, the transformer provides excellent thermal stability, high dielectric strength, and durability. It operates efficiently within a temperature range of -10°C to +55°C, making it suitable for demanding industrial environments.
The product complies with IEC 61869 and IS 2705 standards, ensuring safety, reliability, and long-term performance. Its rugged design minimizes maintenance requirements and ensures consistent operation.
This current transformer is widely used in electrical panels, switchgear systems, energy monitoring systems, and industrial automation setups, where accurate current measurement and protection are essential.
Overall, the B7-320055MA110S2 Ring Type Current Transformer offers a perfect balance of accuracy, durability, and ease of installation, making it a preferred choice for engineers, panel builders, and electrical contractors.
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