The Ring Type CT – B1-007556EA110S2 Current Transformer is a compact, high-precision electrical device designed for accurate current measurement and reliable protection in low-current and space-constrained electrical systems. Engineered with advanced magnetic core technology and high-quality insulation materials, this CT ensures consistent performance, high accuracy, and long service life across industrial and commercial applications.
As part of the compact and efficient B1 series, this model is specifically developed for cable-based installations and compact panel environments, featuring a 7 mm inner diameter. Its ring-type (window type) construction allows for quick and easy installation without disconnecting the primary conductor, making it highly suitable for modern electrical panels where efficiency and convenience are essential.
The B1-007556EA110S2 efficiently converts primary current into a standardized secondary output (typically 5A or 1A), ensuring compatibility with energy meters, ammeters, and protection relays. Designed to deliver high accuracy with minimal phase displacement, this CT provides reliable measurements for energy monitoring, billing, and protection systems.
Constructed using a high permeability silicon steel core, the current transformer 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 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 engineers in control panels, distribution boards, and automation systems where compact design and precision are crucial.
Model Number: B1-007556EA110S2
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: 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): 7 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
No reviews yet.