The Siemens 5SU9346-7CR32 is a 1P+N RCBO (residual current circuit breaker with overcurrent protection) rated at 32 A with a C-trip characteristic, 30 mA Type A residual current sensitivity, and a 6 kA breaking capacity at 230 V AC. The Type A designation means it detects both sinusoidal AC residual currents and pulsating DC residual currents up to 30 mA — relevant for circuits with single-phase rectified loads like switched-mode power supplies or LED drivers.
The 1P+N form factor occupies a single module width (18 mm), so panel fill factor is straightforward — 32 A C-curve plus 30 mA Type A in one slot. The load-side neutral is switched internally, which simplifies wiring in single-phase final circuits where both phase and neutral need overcurrent and residual protection.