FICO SLC-125 Current Transformer (CT) – 125x50mm Window, 1200A–4000A, 5A Secondary for Energy Metering & Protection

The FICO SLC-125 is a premium high-current current transformer (CT) engineered for precise current measurement, monitoring, and protective applications in industrial, commercial, and large residential electrical systems. Built with a robust molded housing and a 125x50mm window, the SLC-125 is specifically designed to handle large conductors and high-load systems, ensuring easy installation without compromising panel space or safety.

This series supports primary currents from 1200A up to 4000A, with a standardized 5A secondary output, making it fully compatible with energy meters, smart meters, power analyzers, and protection relays. Its design focuses on accuracy, stability, and safety, providing reliable current conversion in high-demand electrical environments.

Detailed Features & Advantages:

1. Wide Primary Current Range (1200A–4000A):
• Accommodates a wide variety of applications from medium-to-high voltage industrial setups to large commercial and residential distribution systems.
• Enables versatile integration for metering, monitoring, and overload protection.
2. Large 125x50mm Aperture Window:
• Supports installation over wide busbars, multiple cables, or thick conductors.
• Ensures flexibility in high-current applications while maintaining a compact overall footprint.
3. Standard 5A Secondary Output:
• Universally compatible with most current monitoring and protective devices.
• Facilitates integration with modern energy meters, ammeters, power analyzers, and relay protection systems.
4. Precision & Accuracy:
• Engineered to reduce primary current to a safe 5A secondary with minimal error.
• Ensures reliable readings for energy billing, load monitoring, and protective relay operation, even under variable load conditions.
5. Galvanic Isolation & Safety:
• Provides complete electrical isolation between high-current circuits and secondary monitoring systems.
• Enhances personnel and equipment safety without compromising measurement integrity.
6. Durable, Molded Housing:
• Protects against dust, moisture, vibration, and environmental stress.
• Low-maintenance design ensures longevity and consistent performance in demanding environments.
7. Versatile Applications:
• Industrial: Energy metering, load monitoring, motor protection, and switchgear integration.
• Commercial: Distribution panels in large offices, shopping complexes, and commercial buildings.
• Residential: High-rise or large residential installations requiring precise monitoring and protection.
• Retrofits & Upgrades: Perfect for replacing older CTs or upgrading electrical systems to handle higher currents safely.

Why Choose FICO SLC-125 CT?

The FICO SLC-125 combines high-current capacity, precision, durability, and installation flexibility in one compact package. Its large 125x50mm window allows installation over multiple or thick conductors, while the standardized 5A secondary output ensures seamless integration with measurement and protection devices.

Whether you are implementing energy monitoring systems, upgrading industrial switchgear, or protecting high-load circuits, the SLC-125 guarantees safe, reliable, and accurate current measurement, making it the ideal choice for demanding electrical systems.

Typical Use Cases:

• Large industrial plants requiring high-current metering and relay protection.
• Commercial buildings and shopping complexes for energy management and load tracking.
• High-rise residential buildings for precise energy billing and distribution monitoring.
• Motor control centers and switchgear requiring robust current measurement.
• Retrofit and expansion of existing electrical systems with high-current requirements.