The Siemens 5SU9336-7CR32 is a 1P+N residual current circuit breaker with overcurrent protection (RCBO) rated at 32 A, C-curve trip characteristic, 30 mA Type A residual current sensitivity, and a 6 kA breaking capacity at 230 V AC. The Type A detection means it catches pulsating DC fault currents from single-phase rectified loads — common in washing machines, LED drivers, and small VFDs — not just pure sinusoidal AC leakage. The C-curve (5-10x In magnetic trip) handles inrush from motorized or capacitive loads without nuisance tripping, but on a 32 A circuit expect it to hold start-up surges up to roughly 320 A for a few milliseconds.
Snap-on mounting to standard 35 mm DIN rail. The 1P+N form factor occupies a single module width, so it fits tight distribution boards where every slot counts. Rated for 230 V AC phase-to-neutral circuits only — not for line-to-line or three-phase applications.