The Siemens 5SV3352-6 is a SENTRON 4-pole residual current circuit breaker (RCCB), Type A, rated 25 A with 30 mA sensitivity at 500 V AC.
Snaps onto DIN rail (REG profile) and occupies 4 modular width units at 60 mm grid spacing. Mounting position is unrestricted — horizontal, vertical, or upside-down — which helps when fitting into a crowded enclosure. The 70 mm installation depth matches the standard SENTRON modular range, so it sits flush with adjacent MCBs and RCBOs on the same rail.
Type A detection covers sinusoidal AC residual currents plus pulsating DC — the kind produced by single-phase rectifiers in washing machines, LED drivers, and small VFDs.
Rated for ambient temperatures from -25 °C to +45 °C operating, with storage down to -40 °C. Silicon-free construction — relevant for automotive or paint-shop environments where silicone outgassing can cause adhesion failures. IP20 protection applies once installed in a distribution board with conductors connected; the device itself is not rated for wet or dusty locations without an enclosure. Overvoltage category III, suitable for fixed installation downstream of the utility meter.