The Siemens 3RT1045-1CP04-ZW95 is a Size 2 contactor from the SIRIUS family, supplied in multi-unit packing of 10 items. It is a current-production part, meaning it remains in the active catalog and is regularly manufactured.
What the Multi-Unit Pack Means for Your Line
The multi-unit packing of 10 items means this order code ships as a bulk pack of ten identical contactors, not a single unit. For panel builders or OEMs running multiple identical motor starters, this reduces per-unit packaging waste and simplifies kitting. Each contactor is a standard Size 2 frame — same DIN-rail footprint, same terminal layout as the single-unit variant — so the panel layout stays the same whether you order one or ten.