The Siemens 5SV3316-6 is a SENTRON residual current circuit breaker (RCCB), 2-pole, Type A, rated 63 A with 30 mA trip sensitivity on 230 V AC, 50 Hz mains. It's instantaneous, no intentional delay, so it clears fast on a ground fault.
Depth is 70 mm, so it sits flush in a standard 60 mm grid-spaced distribution board. IP20 with conductors connected; fine inside a closed distribution board, not for wet or washdown zones.
The permissible series fuse is 80 A max. Ambient range -25 °C to +45 °C; storage down to -40 °C. Silicon-free construction, which matters in automotive or coating lines where silicone outgassing can contaminate surfaces.
