The 3PCS Split Core Current Sensor is designed for accurate electricity measuring with a range of ratios including 300A/5, 800A/5, and 1500A/5. Its self-locking structure allows for safe and easy installation, while the wide inner window (50MM) accommodates large cables and bus-bars. This current transformer meets and 12.20 standards, ensuring accuracy and stability. The isolated plastic case minimizes external magnetic interference, making it a reliable choice for various applications. With an operating temperature range of -40°C to +70°C, this portable current meter is perfect for both industrial and commercial use.