Industrial 1SDA051385R1 Rotary Handle Assembly

ABB 1SDA051385R1 is the SACETMAX base unit for the adjustable-depth rotary handle assembly (RHE_B) used with Tmax low-voltage switchgear. Sold as base unit only, this part provides the mounting interface and alignment for T1, T2 and T3 rotary handle depths in SACE Tmax installations. The base is designed to work with the RHE_B rotary handle family, delivering a depth-adjustable platform that accommodates different panel depths and interlock configurations. According to distributor records, the part has been discontinued by the manufacturer. It weighs 0.49 lb (0.22 kg) and is sized for compact panel-mount installations. This base is specified for T1-T2-T3 depth configurations and is part of ABB's SACE Tmax product ecosystem, ensuring compatibility with ABB safety interlock and control schemes. When installed, it serves as the foundational interface for the rotary handle assembly, enabling consistent operation across compatible Tmax enclosures. It is commonly referenced in ABB literature as the base for adjustable-depth rotary handle RHE_B and is listed under part number 1SDA051385R1.