ABB 1SDA066483R1 Rotary Handle Base Assembly

ABB 1SDA066483R1 Rotary Handle Base Assembly is the mounting base that accepts an adjustable-depth rotary handle to operate ABB Tmax XT1-XT3 fixed-plug-in molded-case circuit breakers; ABB documents it as “BASE FOR ADJUSTABLE DEPTH ROTARY HANDLE FOR C.BREAKER FIXED-PLUG-IN XT1-XT3.” This black base, sized for the 105 mm rotary handle in the RHE_B XT1-XT3 F/P BASE series, is designed to mate with XT1-XT3 breakers in standard industrial panels and control cabinets. The part number 1SDA066483R1 identifies this specific base, enabling straightforward sourcing as a replacement or upgrade within ABB's Tmax XT ecosystem, and it is commonly listed by distributors such as RS Components under the ABB rotary-handles family for XT1-XT3 fixed-plug-in installations. By providing a dedicated interface for manual actuation, the base ensures proper alignment and spacing for the handle assembly, supporting safe hand operation and consistent operation across XT1-XT3 frames.