Allen-Bradley 74100-818-25 Soft Starter Assembly

Allen-Bradley 74100-818-25 Soft Starter Assembly is a replacement unit for the 1336-STG soft-start system, designed to operate on 480V service and suited for motors in the 250–450 HP range. It aligns with the 1336-QOUT-SP25A TSTR ASSY configuration within the 1336-STG family and is identified by the 74100-818-25 part number as the specific assembly required for these high-power applications. This soft starter assembly is part of Allen-Bradley’s 1336-STG line, offering a dedicated solution for starting large horsepower motors in 480V circuits where a soft-start is specified. The part is cataloged under the Allen-Bradley brand, a Rockwell Automation product line, and its specifications reflect ratings appropriate for 480V motor circuits within the stated horsepower range. As a replacement assembly, it is intended for use where the 1336-STG configuration is already specified, ensuring compatibility with the existing soft-start infrastructure that supports 480V, 250–450 HP motor drives.