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.
No phase-out or last-time-buy notice is in effect.
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.