ACST-260/ACST-260-1 is a current sense transformer designed for AC current measurement applications. It features a 1:500 turns ratio with an output of 37.2 mV/A ±5% and operates within a primary current range of 0.4 to 30A at frequencies from 50 to 200Hz. The transformer is constructed with UL class B 130°C materials and includes a primary resistance of 600 microohms maximum, sense resistance of 21 Ohms ±10%, and sense inductance of 0.73H ±30%. With hi-pot ratings of 4000V for primary-to-secondary isolation and operating temperature range of -40°C to +70°C (up to 30A) or -40°C to +85°C (up to 20A), this component is suitable for power monitoring, energy metering, and current sensing applications requiring reliable and accurate measurements.