S15C-CT150A-MQ is a S15C current transformer to Modbus converter. It converts a high-voltage input to a proportional low-voltage, low-current signal for measuring and monitoring. Split-core current transformer is used to monitor AC current for various devices. The current transformer input takes a high voltage current input and produces a proportional low-voltage, low-current signal for measuring and monitoring. Split-core current transformer is ideal for installing onto existing electrical wiring because it can snap around the individual conductors without having to disconnect any cables.