The Siemens 5SL6416-6CC is a 4-pole miniature circuit breaker rated 400 V, 6 kA interrupting capacity, B-curve trip characteristic, 16 A. That B-curve means it trips between 3 and 5 times rated current — standard for protecting residential and light commercial wiring where inrush from lighting or small motors is modest. The 6 kA breaking capacity at 400 V covers most sub-distribution boards fed from a transformer or a larger upstream breaker; it's not sized for high-fault industrial mains, but it's fine for final circuits where the prospective short-circuit current stays under that threshold.
Lifecycle status is active per Siemens. RoHS compliance confirmed since June 2013. The product class B means return is restricted — contact your Siemens partner for RMA handling. No obsolescence notice or successor part is recorded; this is a current catalog item, sourced to order against an RFQ through independent distribution.