The Siemens SENTRON 5SU1324-6FA13 is a 2-pole combined residual current circuit breaker with overcurrent protection — an RCBO — rated 13 A at AC with a 30 mA residual trip threshold, Type A (pulsating DC and AC sensitive), B tripping characteristic, and a 10 kA breaking capacity per EN 60898. Type A residual detection covers sinusoidal AC faults and pulsating DC up to 6 mA smooth DC, covering most single-phase electronics loads.
Panel fit and derating
The 5SU1324-6FA13 occupies 3 modular width units (54 mm) on a DIN rail, with a depth of 77 mm and an installation depth of 70 mm — standard for a 2-pole RCBO in a SENTRON distribution board. IP20 applies only when the distribution board is installed with connected conductors, so the device itself is not sealed against dust ingress; it lives inside a closed enclosure. The thermal derating table is explicit: at 40 °C ambient the device carries 12.48 A, at 50 °C it drops to 11.96 A, and at 70 °C it's 10.01 A.