The Siemens SENTRON 5SV3314-6GV01 is a 2-pole residual current circuit breaker (RCCB) rated 40 A at 230 V AC, Type A for pulsating DC and sinusoidal AC fault currents. It carries a 10 kA short-circuit current rating (Icn) and is designed for instantaneous tripping — no intentional delay, so it clears fast on earth faults.
What the ratings mean for fit
Type A detection means this RCCB handles both sinusoidal AC residual currents and pulsating DC — the kind rectifier-fed loads (VFDs, switching power supplies, LED drivers) can produce. If your downstream equipment includes single-phase rectification, Type A is the correct choice; a standard AC-type RCCB may not trip on pulsating DC faults. The 40 A rating at 230 V AC is the continuous load it can carry in a 40 °C ambient. Above that, the allowable current derates stepwise: 38.1 A at 45 °C, 35.59 A at 50 °C, 32.29 A at 55 °C, 28.19 A at 60 °C, 23.3 A at 65 °C, and 17.62 A at 70 °C. In a hot panel — say a packed enclosure near a machine — the effective capacity drops; size the upstream MCB accordingly. The 10 kA short-circuit current rating (Icn) means it can safely interrupt fault currents up to that level at its rated voltage, per IEC 61008. That's the standard residential and light-commercial SCCR for a final subcircuit; if your available fault current exceeds 10 kA at the panel, you'll need a current-limiting MCB upstream or a higher-rated RCCB variant.
Panel integration and mounting
Snaps onto DIN rail (EN 60715), 2 width units (36 mm wide), 70 mm depth from the rail to the front face. Mounting position is any orientation — no restriction on upright or sideways. The supply can enter from top or bottom, which simplifies busbar routing in a crowded enclosure. IP20 with the distribution board installed and conductors connected — finger-safe and back-of-hand safe for shock protection, but not sealed against dust ingress. Not for wet or washdown environments.