The Ring Type CT – B2-007556AA110S2 Current Transformer is a compact, high-precision device engineered for accurate current measurement and reliable protection in low to medium current electrical systems. Designed using advanced magnetic core technology and high-quality insulation materials, this current transformer delivers consistent performance, excellent accuracy, and long operational life across industrial and commercial applications.
Part of the reliable and compact B2 series, this model is specifically designed for cable-based installations and compact electrical panels, offering enhanced flexibility and efficient performance. It features a 7 mm inner diameter, making it ideal for low-current circuits and space-constrained installations where precision and compact design are critical.
The B2-007556AA110S2 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 deliver high accuracy with minimal phase displacement, ensuring precise readings for energy monitoring, billing, and protection systems.
Constructed with a high permeability silicon steel core, this CT minimizes energy losses while maintaining excellent linearity across varying load conditions. The outer housing is made from flame-retardant thermoplastic, providing strong resistance against heat, dust, and mechanical stress, ensuring durability in 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 professionals in control panels, distribution boards, and automation systems where compact size and high accuracy are essential.
Model Number: B2-007556AA110S2
Product Type: Ring Type Current Transformer
Rated Primary Current: 7A (typical, configurable)
Secondary Current: 5A / 1A
Accuracy Class: Class 1.0 / Class 0.5
Rated Burden: 2.5 VA / 5 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): 7 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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