Siemens 5SU9346-7CR06 RCBO, 6 kA, 1P+N, Type A, 30 mA, C-Cha

This is the unit that fits a single-width DIN-rail slot in a residential or light commercial distribution board — no extra space needed for a separate RCD and MCB.

Deployment context

The 1P+N format occupies one module width (roughly 18 mm), so it fits distribution boards where space is tight. The Type A RCD means it is suitable for circuits with single-phase electronic loads — think washing machines, heat pumps, or EV chargers — where a pure AC RCD would miss pulsating DC fault currents.