The Ring Type CT – B7-200054LA110S2 Current Transformer is a high-performance, precision-engineered device designed for accurate current measurement and dependable protection in industrial and commercial electrical systems. Developed using advanced magnetic core technology and premium insulation materials, this current transformer ensures consistent accuracy, robust performance, and long operational life even in demanding environments.
As part of the durable and widely used B7 series, this model is specifically engineered for heavy-duty busbar and large cable applications. It features a 200 mm inner diameter, making it ideal for high-capacity electrical installations such as switchgear panels, power distribution systems, and industrial control panels. The ring-type (window type) design allows for easy installation without disconnecting the primary conductor, significantly reducing installation time and system downtime.
The B7-200054LA110S2 efficiently transforms high primary current into a standardized secondary output (typically 5A or 1A), ensuring safe and accurate interfacing with energy meters, ammeters, and protection relays. Its high accuracy and low phase displacement make it suitable for both metering and protection applications, delivering reliable data for energy management and system safety.
Constructed using a high permeability silicon steel core, the transformer minimizes energy losses while maintaining excellent linearity across a wide current range. The outer housing is made from flame-retardant thermoplastic, offering strong resistance against heat, dust, and mechanical stress, ensuring durability in harsh industrial conditions.
Designed in accordance with IS / IEC 61869-2 standards, this current transformer guarantees safety, reliability, and long-term performance. It is widely used by electrical engineers, OEMs, and panel manufacturers for efficient current monitoring in modern electrical infrastructure.
Model Number: B7-200054LA110S2
Product Type: Ring Type Current Transformer
Rated Primary Current: 200A (typical, configurable)
Secondary Current: 5A / 1A
Accuracy Class: Class 1.0 / Class 0.5
Rated Burden: 5 VA / 10 VA
Frequency: 50/60 Hz
System Voltage: Up to 0.72 kV
Insulation Class: Class E / B
Short-Time Thermal Current (Ith): 20 × In for 1 second
Dynamic Current (Idyn): 2.5 × Ith
Core Material: High-grade silicon steel
Mounting Type: Busbar / Cable (Ring Type)
Inner Diameter (ID): 200 mm
Operating Temperature Range: -10°C to +55°C
Storage Temperature Range: -20°C to +70°C
Housing Material: Flame-retardant thermoplastic
Standards Compliance: IS / IEC 61869-2
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