ArmorStart ST Distributed Motor Controller Specifications

This document provides technical specifications, catalog number explanations, wiring diagrams, and dimensions for Rockwell Automation ArmorStart ST distributed motor controllers, including Bulletin 281E/281ES/281GS (full-voltage starters) and 284E/284ES/284GS (variable frequency drives). It covers standard, hardwired safety, and integrated safety versions with features such as EtherNet/IP connectivity, IP67/NEMA Type 4/12/13 enclosures, safe torque-off (STO), and dual-port switch capabilities.