The Ring Type CT – B1-010055EA110S2 Current Transformer is a compact and precision-engineered device designed for accurate current measurement and reliable protection in low-current electrical systems. Manufactured using advanced magnetic core technology and high-quality insulation materials, this CT ensures consistent accuracy, stable performance, and long operational life in industrial and commercial applications.
As part of the efficient and compact B1 series, this model is specifically developed for cable-based installations and small panel applications, featuring a 10 mm inner diameter. Its ring-type (window type) construction allows for easy installation without disconnecting the primary conductor, making it highly suitable for fast and efficient integration in modern electrical systems.
The B1-010055EA110S2 efficiently converts primary current into a standardized secondary output (typically 5A or 1A), ensuring compatibility with various electrical measuring instruments such as energy meters, ammeters, and protection relays. Designed to deliver high accuracy with minimal phase displacement, this current transformer ensures reliable readings for energy monitoring, billing, and protection applications.
Constructed with a high permeability silicon steel core, the CT minimizes energy losses and provides excellent linearity across different 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 current transformer guarantees safety, reliability, and consistent long-term performance. It is widely used by panel builders, OEMs, and electrical engineers in control panels, distribution boards, and automation systems where compact design and precision are essential.
Model Number: B1-010055EA110S2
Product Type: Ring Type Current Transformer
Rated Primary Current: 10A (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: Cable (Ring Type)
Inner Diameter (ID): 10 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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