The Siemens 5SL4416-6CC is a 4-pole miniature circuit breaker (MCB) with a B-curve trip characteristic, rated at 16 A and 400 V AC with a 10 kA breaking capacity. This is the part you need for a 4-pole B16 branch circuit in a 400 V three-phase panel — think lighting, socket outlets, or general-purpose loads where the B-curve handles moderate inrush without nuisance tripping. The B-curve trips between 3 and 5 times rated current (48–80 A magnetic trip), which is standard for resistive and light inductive loads. The 10 kA breaking capacity at 400 V means it can safely interrupt a fault current up to 10,000 A — adequate for most commercial and light industrial distribution boards where the prospective short-circuit current stays under that threshold.
Lifecycle and Sourcing
For a BOM freeze or a PCN watch, the active status means no imminent end-of-life risk. If you're sourcing this for a new panel design, the 5SL series is a current catalog line with broad availability across distributors.
Compliance and Documentation
RoHS compliant since June 1, 2013, and REACH candidate list information is available from Siemens. Export control is straightforward: AL: N / ECCN: N, so no special licensing for cross-border shipments.