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Model: MCT45-21(40) accuracy class 1.0 , - A2-012056FA110S2

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Best Price (Excl. GST):
346 / nos MRP: ₹720 / nos
GST (18%): 62
Total Price (Incl. GST): ₹408
You Save: ₹374 (52%)
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Product Description

The MCT45-21(40) - A2-012056FA110S2 Current Transformer (CT) is a compact, high-precision electrical device designed for accurate current measurement and dependable protection in modern electrical systems. Built using advanced magnetic core technology and high-quality insulation materials, this CT ensures reliable performance, safety, and long service life across a wide range of industrial and commercial applications.

As part of the trusted MCT45 series, this model is engineered for panel mounting and cable applications, featuring a 21 mm window size that is ideal for compact installations. Its space-saving design makes it highly suitable for switchgear panels, distribution boards, and control systems where efficient use of space is critical.

The A2-012056FA110S2 variant delivers excellent measurement accuracy with low phase displacement, ensuring precise readings for energy monitoring, billing, and protection systems. It converts high primary current into a standardized secondary output (commonly 5A or 1A), making it compatible with a wide range of measuring instruments such as ammeters, energy meters, and protection relays.

The CT is constructed using a high permeability silicon steel core, which reduces energy losses and ensures stable performance even under fluctuating load conditions. Its flame-retardant thermoplastic enclosure provides superior protection against heat, dust, and mechanical stress, making it highly durable in demanding environments.

Designed in accordance with IS / IEC 61869-2 standards, this current transformer guarantees consistent performance, operational safety, and long-term reliability. It is widely used by electrical engineers, OEMs, and panel builders in power distribution and automation systems.


Key Features

  • Compact and space-efficient design
  • High accuracy with minimal phase error
  • Suitable for cable and small busbar applications
  • Strong thermal and mechanical stability
  • Durable flame-retardant housing
  • Easy installation and maintenance-free
  • Reliable performance under varying loads
  • Long operational life 

Technical Specifications

Model Number: MCT45-21(40) - A2-012056FA110S2
Product Type: Current Transformer (CT)
Rated Primary Current: 125A
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 for 1 second
Dynamic Current (Idyn): 2.5 × Ith
Core Material: High-grade silicon steel
Mounting Type: Panel / Cable Mount
Window Size: 21 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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