Current transformers (CTs) are essential devices in electrical systems, used to measure alternating current (AC) by stepping down high currents to a standardized, manageable level for instrumentation and protection. They are widely applied in power distribution, energy monitoring, and automation systems. CTs ensure accurate current measurement while providing electrical isolation for safety. Common types include split-core, solid-core, and Rogowski coils, each suited for specific applications. Key features include high accuracy, wide frequency range, and robust construction. Products in this category may include panel-mounted CTs, clamp-on CTs, and precision CTs for metering. These devices are critical for maintaining system efficiency and safety in industrial and commercial electrical systems.