The Siemens 5SU1154-6KV13 is an FI/LS-protector Type A with a 10 mA IΔn and a B-curve 13 A overcurrent trip.
Panel integration — what the form factor tells you
The 1+N-pole construction (switching both phase and neutral, with overcurrent protection on the phase only) occupies a single modular width — 70 mm depth — and snaps onto standard DIN rail. The neutral pole is solidly connected through the RCD section; no separate neutral link is needed downstream. For a panel-builder, this means one part replaces two (RCD + MCB) and saves one DIN space versus a two-module solution.