The MCT50-21(30) - A3-012056EA110S2 Current Transformer (CT) is a compact, high-precision device designed for accurate current measurement and reliable protection in modern electrical distribution systems. Developed using advanced magnetic core technology and high-grade insulation materials, this CT delivers consistent performance, minimal losses, and long operational life across industrial and commercial applications.
Part of the dependable MCT50 series, this model is specifically engineered for panel mounting and cable-based installations, featuring a 21 mm window size. Its compact design makes it ideal for use in switchgear panels, control panels, and distribution boards where space efficiency is critical.
The A3-012056EA110S2 variant is optimized to deliver high measurement accuracy with minimal phase displacement, ensuring precise readings for energy monitoring, billing, and protection systems. It converts high primary current into a standardized secondary output (typically 5A or 1A), ensuring compatibility with energy meters, ammeters, and protection relays.
Constructed using a high permeability silicon steel core, this current transformer minimizes hysteresis and eddy current 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 demanding environments.
Designed in accordance with IS / IEC 61869-2 standards, this CT ensures safety, reliability, and consistent long-term performance. It is widely used by OEMs, panel builders, and electrical professionals in power distribution systems, industrial automation, and energy management applications.
Model Number: MCT50-21(30) - A3-012056EA110S2
Product Type: Current Transformer (CT)
Rated Primary Current: 120A
Secondary Current: 5A
Accuracy Class: Class 1.0 (Class 0.5 optional)
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 permeability silicon steel
Mounting Type: Panel / Cable Mount
Window Size: 21 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
No reviews yet.