What this cable is and where it fits
The Siemens 3RK1911-0CC50 is an ECOFAST power supply cable with 5 conductors of 4 sqmm each, prefabricated at both ends with HAN Q8/0 (pin/socket) connectors. It's ordered for any length between >10 m and <15 m, specified in steps of min. 10 cm. This cable lands in a Siemens ECOFAST distributed I/O or motor starter system — think panel-to-field power runs where you need a rugged, pre-terminated connection that saves field-wiring time.
Lifecycle and sourcing reality
Lifecycle stage is listed as current — meaning Siemens still manufactures this order code as a standard catalog item. No phase-out or last-time-buy notice is in effect. For a BOM line that needs this exact cable, it's sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time.
What the description means for fit
The 5 x 4 sqmm conductors carry power and possibly a PE conductor for ECOFAST motor starters or I/O blocks. HAN Q8/0 (pin/socket) is a rectangular industrial connector — mates with the panel-side receptacle on the ECOFAST distribution box. The 'prefabricated at both ends' point means you're getting a factory-crimped assembly, not a field-terminated cable; no crimping tool needed, no risk of pin pull-out on a vibrating line. When ordering, you specify the exact length in 10 cm increments within the >10 m to <15 m window — so measure your cable tray route before placing the order.