RCCB for personnel and fire protection on 230 V single-phase circuits
The Siemens 5SV5314-0FC is a 2-pole residual current operated circuit breaker (RCCB) from the SENTRON family, rated 40 A at 230 V AC with a 30 mA trip threshold.
Mounting position is unrestricted — horizontal or vertical in the enclosure. Supply can land top or bottom terminals. Installation depth matches the unit depth at 70 mm, so it sits flush with other SENTRON 2-MU devices on the same rail. IP20 rating applies once the distribution board is installed with conductors connected.
Fault ratings and coordination
Rated short-circuit current (IEC 61008-1) is 0.5 kA, and the conditional short-circuit current rating with an associated upstream MCB or fuse is 6 kA. The permissible let-through current is 5 200 A; the I²t value is 58 000 A²·s. These numbers define the energy-limiting capability during a fault — useful for selectivity studies with downstream breakers. Operating frequency is 50 Hz only.