The MCT140-100H(45) - AB-050055JA110S2 is a high-accuracy low voltage ring type current transformer engineered for industrial metering, monitoring, and protection applications. This model is widely used in electrical distribution systems, switchgear panels, Motor Control Centers (MCC), Power Control Centers (PCC), and energy management systems where precise current measurement and operational reliability are essential.
Current transformers (CTs) are critical components in electrical power systems because they safely reduce high primary current into a standardized low secondary current suitable for meters, relays, analyzers, and protection devices. The MCT140 series is specifically designed to deliver stable electrical performance, accurate readings, and long operational life even under fluctuating load conditions. These CTs are manufactured in compliance with IEC standards for low voltage industrial and commercial applications.
The MCT140-100H(45) - AB-050055JA110S2 features a durable ring type construction that allows easy installation around busbars and insulated conductors. Its flame-retardant polycarbonate housing provides excellent insulation strength, thermal stability, and mechanical durability, making it suitable for demanding industrial environments. The transformer is also equipped with finger-safe terminal covers to improve operational safety during installation and maintenance procedures.
This model is designed for a 500/5A current ratio, converting high primary current into a standardized 5A secondary output for accurate energy monitoring and metering applications. It supports both 50Hz and 60Hz operating frequencies and can be used in low voltage systems up to 720V maximum system voltage. The CT provides dependable thermal and dynamic withstand capability, ensuring reliable long-term performance in industrial power systems.
The transformer is manufactured using high-quality magnetic core material and precision winding technology to ensure low measurement error and consistent performance. Its dual terminal connection facility allows convenient wiring and shorting during maintenance. Because of its compact design, reliable accuracy, and easy mounting capability, the MCT140-100H(45) - AB-050055JA110S2 is preferred by panel builders, electrical contractors, OEM manufacturers, and industrial engineers.
| Parameter | Specification |
|---|---|
| Model | MCT140-100H(45) - AB-050055JA110S2 |
| Product Type | Ring Type Current Transformer |
| CT Type | Low Voltage Current Transformer |
| Primary Current | 500A |
| Secondary Current | 5A |
| Accuracy Class | Class 0.5 |
| Burden | 15 VA |
| Frequency | 50/60 Hz |
| Maximum System Voltage | Up to 720V |
| Test Voltage | 4kV for 1 Minute |
| Window Size | 100H mm |
| Mounting Type | Busbar Mounting |
| Housing Material | Flame Retardant Polycarbonate UL94 V-0 |
| Protection Class | IP20 |
| Operating Temperature | -25°C to +40°C |
| Storage Temperature | -50°C to +80°C |
| Applicable Standards | IEC 61869-1 & IEC 61869-2 |
| Connection Type | Dual Terminal with M4 Screws |
| Application | Metering & Monitoring |
The MCT140-100H(45) - AB-050055JA110S2 current transformer is suitable for:
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