The Siemens 5SU9353-7CN06 is a 1P+N RCBO rated 6 A with a C-trip curve and 30 mA Type A residual current protection, breaking capacity Icn 4.5 kA at 230 V AC. Type A detection catches pulsating DC fault currents from rectified loads (switched-mode supplies, variable-speed drives), which standard AC-only RCDs miss. The 30 mA sensitivity covers personnel protection in wet or outdoor sub-circuits per IEC 60364.
Panel integration
Rated for 230 V AC line-to-neutral circuits; verify the neutral bar arrangement in the enclosure matches the integrated neutral switching.