The Siemens 5SU1354-6KV13 is a combined residual-current device and miniature circuit breaker (RCBO), designated as an FI/LS-protector Type A (PSE/SSF). It integrates a 30 mA residual-current detection circuit with a 10 kA breaking-capacity MCB in a single 1+N-pole module, B characteristic rated at 13 A. The 70 mm depth matches standard Siemens distribution-board cutouts for this generation of RCBOs.
Mounts on standard DIN rail in a distribution board or sub-distribution panel. The 1+N-pole form factor occupies one module width plus neutral; the 70 mm depth fits flush in enclosures designed for Siemens 5SU1-series RCBOs. Type A residual-current detection covers pulsating DC fault currents up to 6 mA smooth DC superimposed — relevant for circuits feeding single-phase rectified loads such as switched-mode power supplies or LED drivers.