The Ring Type CT – B1-015054EA110S2 Current Transformer is a compact and precision-engineered electrical device designed for accurate current measurement and reliable protection in low to medium current applications. Built using advanced magnetic core technology and high-quality insulation materials, this CT ensures stable performance, high accuracy, and long operational life in industrial and commercial environments.
As part of the compact and efficient B1 series, this model is specifically developed for cable-based installations and compact panel systems, featuring a 15 mm inner diameter. Its ring-type (window type) construction allows easy installation without disconnecting the primary conductor, making it ideal for quick integration in modern electrical panels.
The B1-015054EA110S2 efficiently converts primary current into a standardized secondary output (typically 5A or 1A), ensuring compatibility with energy meters, ammeters, and protection relays. It is engineered to provide high accuracy with minimal phase displacement, ensuring reliable readings for energy monitoring, billing, and protection systems.
Constructed with a high permeability silicon steel core, this current transformer minimizes energy losses while maintaining excellent linearity across varying load conditions. The outer housing is made from flame-retardant thermoplastic, offering strong resistance against heat, dust, and mechanical stress, ensuring durability in compact and demanding environments.
Designed in compliance with IS / IEC 61869-2 standards, this CT guarantees safety, reliability, and consistent long-term performance. It is widely used by panel builders, OEMs, and electrical professionals in control panels, distribution boards, and automation systems where compact size and precision are essential.
Model Number: B1-015054EA110S2
Product Type: Ring Type Current Transformer
Rated Primary Current: 15A (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 (1 sec)
Dynamic Current (Idyn): 2.5 × Ith
Core Material: High-grade silicon steel
Mounting Type: Cable (Ring Type)
Inner Diameter (ID): 15 mm
Operating Temperature: -10°C to +55°C
Storage Temperature: -20°C to +70°C
Housing Material: Flame-retardant thermoplastic
Standards Compliance: IS / IEC 61869-2
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