The ACST-261-1 is a current sense transformer designed for measuring AC currents from 1A to 30A. It features a 1:1000 turns ratio, a typical output of 60 mV/A, and operates within a primary sense frequency of 50-200 Hz. Key electrical characteristics include a primary resistance of 530 µOhms, a sense resistance of 79 Ohms, and a secondary inductance of 2.4 H. As part of the low-profile ACST-200 series, this component has a high dielectric strength of 3000 Vrms and is suitable for various power monitoring and control applications.