What this MCB is and where it fits
The Siemens 5SL6114-7CC is a 1-pole miniature circuit breaker from the SENTRON 5SL6 family, rated at 0.3 A with a C-trip characteristic and a 6 kA interrupting capacity at 230/400 V. It snaps onto a standard DIN rail in a distribution board or sub-panel — the 1-pole width (roughly 18 mm per module) leaves room for adjacent breakers in the same row. The C-curve (trips between 5 and 10 times rated current) suits moderate inrush loads typical of small control transformers, contactor coils, or lighting circuits where a B-curve would nuisance-trip on startup.
Compliance documentation a quality reviewer expects
RoHS compliance is declared effective 01 June 2013. Under REACH Article 33, the part contains lead (CAS 7439-92-1) above 0.1% w/w, which is a standard disclosure for brass or steel terminals — no special handling beyond normal industrial practice. Export control classification is AL: N / ECCN: N, meaning no bilateral or multilateral restrictions apply.
What the ratings mean for a panel builder
The 6 kA interrupting capacity at 230/400 V is the fault current this breaker can safely clear without welding contacts or rupturing the case — sufficient for most residential and light commercial service-entrance panels where the prospective short-circuit current stays under that threshold. The 0.3 A rating is unusually low for a 1-pole MCB; it is sized for signal-level or very small transformer protection, not general branch circuits. Verify the load's inrush characteristic against the C-curve: a 0.3 A C-curve breaker will hold a steady 0.3 A resistive load but may trip on a transformer magnetizing inrush that briefly exceeds 1.5 A to 3 A (5-10× In).