What it is and what it does
The Siemens 5SL6606-7BB is a miniature circuit breaker (MCB) rated 400 V with a 6 kA breaking capacity, 3+N-pole configuration, C-curve trip characteristic, and 6 A rated current — the Italy version of the 5SL6 series. The C-curve trips between 5 and 10 times rated current, so it's sized for general-purpose loads with moderate inrush — think lighting banks, small transformers, or mixed resistive-inductive circuits — not motor-start duty where a D-curve would be needed.
Lifecycle and sourcing posture
Sourced and quoted to order against an RFQ; availability and current pricing confirmed at quote time.
Deployment context
Snap-on DIN-rail mount for panel or sub-distribution board integration — standard 18 mm per pole width, so this 3+N-pole unit occupies 72 mm of rail.