The Siemens 5SU1354-6KK32 is a 1P+N RCBO from the SENTRON family, combining overcurrent protection and residual current detection in a single 2-module-wide unit. Rated 32 A at 30 °C with a Type B tripping characteristic, it clears faults at 10 kA per EN 60898 and 15 kA per IEC 60947-2.
The headline 32 A rating applies at 30 °C ambient; derate to 30.4 A at 40 °C, 28.8 A at 50 °C, and 24.64 A at 70 °C. If your panel runs warm, use the 40 °C or 50 °C figure for the BOM line. The 1P+N design protects the phase conductor only; the neutral is switched but not protected.
Depth is 77 mm, installation depth 70 mm — verify enclosure depth before specifying. Halogen-free and silicon-free construction suits environments with strict material restrictions.