The Ring Type CT – B1-015056JA110S2 Current Transformer is a compact, high-precision device designed for accurate current measurement and reliable protection in low to medium current electrical systems. Engineered with advanced magnetic core technology and high-quality insulation materials, this current transformer ensures consistent performance, excellent accuracy, and long operational life in both industrial and commercial applications.
As part of the compact and efficient B1 series, this model is specifically developed for cable-based installations and compact electrical panels, featuring a 15 mm inner diameter. Its ring-type (window type) design allows easy installation without disconnecting the primary conductor, making it highly suitable for quick and efficient panel integration.
The B1-015056JA110S2 converts primary current into a standardized secondary output (typically 5A or 1A), ensuring compatibility with energy meters, ammeters, and protection relays. It is designed to deliver high accuracy with minimal phase displacement, ensuring reliable measurements for energy monitoring, billing, and protection systems.
Constructed using a high permeability silicon steel core, the CT minimizes energy losses while maintaining excellent linearity across varying load conditions. The outer enclosure is made from flame-retardant thermoplastic, offering superior 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 critical.
Model Number: B1-015056JA110S2
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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