The Siemens 5SL6606-7MB is a 3+N-pole miniature circuit breaker rated 400V with a 6kA breaking capacity, C-curve trip characteristic, and 6A rated current. This is the part you grab when a three-phase plus neutral subfeed in a 400V panel needs coordinated short-circuit and overload protection — the C-curve holds for moderate inrush (motorized valves, small pumps, lighting banks) and trips fast on a hard fault.
Compliance & documentation
RoHS compliant since 01-09-12, with a REACH Article 33 disclosure for lead (CAS 7439-92-1) above 0.1% w/w. The product class is B (return restricted, contact Siemens partner/office), so plan for standard distribution-channel returns rather than direct-to-factory. Group code P310 and product group 3803 are the internal Siemens classification codes for this component line.