What it is and where it fits
The Siemens 5SU3747-0KW06 is a DIN-rail-mount miniature circuit breaker (MCB) in the Circuit Breakers, Fuses & Protection category, subcategory Din Rail Mount Circuit Breakers.
Lifecycle and sourcing reality
The lifecycle stage is marked as current, meaning Siemens still manufactures this order code without a published phase-out. The part is sourced to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time.