Description Current transformers (CTs) are sensors that are used for measuring alternating current. They are particularly useful for measuring whole building electricity consumption (or generation for that matter). The split core type such as the CT in the picture above, is particularly suitable for DIY use it can be clipped straight on to either the live or neutral wire coming into the building without having to do any high voltage electrical work. Applications Home Automation and Control applications where Current measurement is needed. Suitable for the current measuring Monitoring and protection of AC motor Lighting equipment Air compressor Technical Specifications Input Current: 0~100A AC Output Mode: 0~50mA Non-linearity: ±3% Turn Ratio: 100A:0.05A Resistance Grade: Grade B Work Temperature: -25°C ~ ﹢70°C Dielectric Strength(between shell and output): 1000V AC/1min 5mA Leading Wire in Length: 1m Open Size: 13mm x 13mm   Documents and Downloads SCT-013-000 Datasheet CT Senors – Introduction CT Sensors – Interfacing with an Arduino CT Sensors – How to build an arduino energy monitor Package Includes 1x SCT013 100A current transformer with cable and 2.5mm stereo jack