Allen-Bradley 193-CT-UL-300A Current Transformer

Allen-Bradley 193-CT-UL-300A is a UL-listed three-pack of external current transformers with a 300:5 step-down ratio, designed to feed overload-relay circuits in Allen-Bradley protection schemes. The kit is specified for use with E300 overload relays (193/592 IEC/NEMA) and provides a safe, isolated 5 A secondary signal derived from a 300 A primary to sense heavy current conditions without exposing control circuitry. Packaged as a box of three current transformers, this configuration supports multi-location current measurement or distribution within a single protection system, helping to streamline wiring when multiple feeds or motors are monitored by a common relay interface. With the 300:5 ratio, these transformers convert high primary currents into a manageable secondary current that protective relays interpret to decide whether to trip or hold. The 193-CT-UL-300A assembly is manufactured to Rockwell Automation specifications, reflecting Allen-Bradley’s emphasis on reliability and UL compliance for industrial automation components. This makes it well-suited for installation in industrial control panels, motor feeders, and other applications where robust, UL-listed current sensing is required to safeguard equipment and maintain safe, continuous operation.