The CST-1030 is a current sense transformer designed for detecting current in a conductor at an operating frequency of 50/60 Hz. It is rated for a primary current of 30 Amps and features a turns ratio of 1000:1. The transformer has a nominal DC resistance of 46 Ohms and provides a voltage output of 0.0977 Volts per Amp when used with a 100 Ohm terminating resistor. These reliable and efficient transformers are suitable for applications requiring accurate current measurement and monitoring in power systems and control circuits.