ABB 1SDA104853R1 is a rotary handle operating mechanism (RHE) for Tmax XT6 molded‑case circuit breakers, configured as a door‑mounted unit for fixed‑plug‑in XT6 installations. It provides a standard adjustable depth of 500 mm and includes a padlock device plus a door interlock to prevent door opening when the breaker is closed, supporting lockout/tagout safety. The assembly weighs 0.444 kg and complies with IEC 60947-2 and UL 489 safety standards.
