Schneider Electric 3090SCCT043 Split Core Current Transformer

The Schneider Electric Square D PowerLogic 3090SCCT043 Split-Core Current Transformer is a 400 A primary, 5 A secondary CT designed to clamp around a conductor for easy, low-disruption current monitoring of high-load circuits. This split-core transformer is rated for up to 600 VAC and operates at 50/60 Hz, providing a proportional 5 A secondary output suitable for connection to PowerLogic meters and other compatible energy-monitoring equipment. The 3090SCCT043 features a 400:5 current-ratio with a 5 VA burden, making it appropriate for mid-to-high current applications in electrical panels, switchgear, and measurement systems. The sensing window measures about 2.45 in (width) by 2.89 in (height), with overall dimensions near 5.55 in tall, 5.91 in wide, and 1.14 in deep, enabling installation in many standard enclosures without disconnecting the primary conductor. Split-core design allows installation around an existing live conductor, facilitating retrofits and monitoring without service interruption, while delivering accurate current readings to data loggers, meters, or energy-management systems that accept a 5 A secondary input.