The MCT140-100H(45) - AB-030055FA110S2 is a high-precision molded current transformer designed for industrial metering, power monitoring, and electrical protection applications. This ring-type low-voltage CT is engineered using premium-grade CRGO magnetic core material and flame-retardant molded insulation to ensure reliable performance, accurate current measurement, and long operational life.
The transformer is part of the advanced MCT140 series, which is widely used in industrial switchgear, energy management systems, electrical control panels, and commercial power distribution applications. Designed for continuous operation in demanding electrical environments, this CT offers excellent thermal stability, low losses, and highly accurate current transformation.
The ring-type construction enables easy installation around busbars and power cables, making it ideal for modern compact electrical systems. Its robust polycarbonate molded housing provides superior mechanical strength and electrical insulation while ensuring operator safety during maintenance and operation.
This model is specially designed for applications requiring Class 0.5 accuracy, making it suitable for precise metering and energy monitoring systems. The transformer converts high primary current into a safe and measurable secondary current for meters, relays, and protection devices.
The MCT140-100H(45) CT complies with IEC standards and is manufactured to deliver dependable performance under varying electrical loads and environmental conditions. Its durable construction and maintenance-free operation make it a preferred choice for electrical contractors, panel manufacturers, and industrial engineers.
The transformer delivers precise current measurement with Class 0.5 accuracy for reliable metering and monitoring applications.
Built with flame-retardant polycarbonate housing for excellent insulation strength and long-term durability.
Its compact and space-saving structure allows easy installation in switchgear and electrical panels.
Designed for continuous industrial operation with stable performance under fluctuating load conditions.
The insulated body and finger-safe terminal arrangement improve user protection during installation and servicing.
The durable molded construction reduces maintenance requirements and improves operational reliability.
| Specification | Details |
|---|---|
| Model Number | MCT140-100H(45) - AB-030055FA110S2 |
| Product Type | Molded Current Transformer |
| CT Type | Ring Type / Toroidal CT |
| Rated Primary Current | 300A |
| Rated Secondary Current | 5A |
| Accuracy Class | Class 0.5 |
| Burden Capacity | 3.75VA |
| Internal Diameter | 100 mm |
| Depth | 45 mm |
| Rated System Voltage | Up to 720V |
| Frequency | 50Hz / 60Hz |
| Core Material | High-Grade CRGO Core |
| Housing Material | Flame Retardant Polycarbonate |
| Mounting Type | Busbar / Panel Mount |
| Protection Class | IP20 |
| Operating Temperature | -25°C to +40°C |
| Compliance Standard | IEC 61869-1 & IEC 61869-2 |
| Insulation Level | High Dielectric Strength |
The model code AB-030055FA110S2 indicates a 300/5A current ratio, Class 0.5 accuracy, and 3.75VA burden capacity within the MCT140-100H(45) series.
The MCT140-100H(45) - AB-030055FA110S2 current transformer is suitable for various industrial and commercial applications, including:
Its accurate measurement capability improves system monitoring, electrical efficiency, and protective relay performance.
The MCT140-100H(45) current transformer provides accurate current sensing that helps optimize energy management and improve electrical system reliability. By delivering precise current signals to metering and protection devices, it supports efficient load analysis and fault detection.
The transformer’s high-quality magnetic core minimizes losses and ensures stable measurement accuracy during continuous operation. Its molded insulated housing protects internal components from dust, moisture, and mechanical stress while enhancing operator safety.
Its compact design allows installation in modern space-constrained electrical panels, making it suitable for advanced industrial infrastructure and commercial electrical projects.
The CT also reduces maintenance requirements due to its rugged construction and durable insulation system, resulting in improved operational efficiency and reduced downtime.
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