FICO RTC-225x65 High-Capacity Current Transformer (CT) – 3000A–8000A, 5A Secondary, Industrial & Commercial Load Monitoring

The FICO RTC-225x65 RTC Model Series is a high-capacity, precision-engineered current transformer (CT) designed for accurate current measurement, load monitoring, and protective applications in industrial, commercial, and large residential electrical systems. Featuring an inner window size of 225x65mm, this CT allows installation over wide busbars, multiple conductors, or thick cables, making it ideal for high-current applications where precision, flexibility, and safety are critical.

This CT series supports primary currents from 3000A up to 8000A, with a standard 5A secondary output, ensuring safe, reliable, and precise current conversion. The FICO RTC-225x65 is suitable for new electrical installations as well as retrofitting existing systems, providing stable and accurate readings for energy metering, load monitoring, and protective relay operation.

Key Features & Benefits:

• High Primary Current Range: 3000A, 4000A, 5000A, 6000A, 8000A (5A secondary) – Suitable for heavy industrial, commercial, and high-load residential applications.
• Large Inner Window 225x65mm: Facilitates installation over wide busbars or multiple conductors, offering flexibility for high-current circuits.
• Standard 5A Secondary Output: Fully compatible with energy meters, smart meters, power analyzers, and protective relay systems.
• Accurate & Stable Measurement: Converts high primary currents into safe 5A secondary currents for precise energy metering, load monitoring, and relay operation.
• Electrical Isolation & Safety: Galvanic isolation protects personnel and monitoring devices while maintaining measurement integrity.
• Durable Molded Housing: Resistant to dust, moisture, vibration, and environmental stress, ensuring long-lasting, low-maintenance performance.
• Versatile Applications: Ideal for energy metering, load monitoring, motor protection, and relay systems in industrial, commercial, and large residential installations.

Typical Applications & Use Cases:

• High-current energy metering and billing in industrial plants and commercial complexes.
• Load monitoring in switchgear, motor control centers, and large distribution panels.
• Integration with smart meters, power analyzers, energy management systems, and protective relays.
• Retrofitting or upgrading high-current electrical systems requiring 225x65mm inner window clearance.
• Overload, short-circuit, and protective relay applications in medium-to-high current circuits.

Why Choose FICO RTC-225x65 CT?

The FICO RTC-225x65 combines high-current capacity, precise performance, and installation flexibility. Its 225x65mm inner window allows easy installation over wide busbars or multiple cables, while the standardized 5A secondary output ensures seamless integration with energy meters, protective relays, and monitoring systems. Ideal for industrial, commercial, and large residential electrical installations, the RTC-225x65 guarantees accurate, safe, and reliable current monitoring and protection even in demanding electrical environments.