Amtran CT104-601-01 Window Current Transformer

Amtran CT104-601-01 Window Current Transformer is a through-conductor, window-type current sensor designed for accurate measurement in switchgear and distribution panels. It carries a 600:5MR primary-to-secondary ratio and a 6.5-inch window, allowing a conductor to pass directly through for single- or multi-conductor installations in typical medium-voltage assemblies. Operated at 50/60 Hz, it is rated for a 0.6 kV working voltage with a 10 kV BIL insulation level, matching the CT104 window-series specifications used in MV equipment. The CT104 family supports multi-ratio configurations, with the CT104-601MR designation indicating a 600:5MR rating, as documented in official Amran/AMRAN literature and cross-reference materials. When the primary current reaches rated values, the transformer provides a 5 A secondary current, enabling direct connection to metering or protective-relay inputs while maintaining proper isolation and accuracy within standard performance classes. This model is specifically positioned for through-conductor installations in modern switchgear and distribution networks where reliable current sensing, insulation integrity, and compatibility with typical relays and meters are required.