The Siemens 3RK1911-0BF20 is a pre-terminated ECOFAST power connection cable, 7 x 2.5mm² conductors, 3m long, with HAN Q8/0 connectors on both ends. This is a ready-to-run assembly for distributing power to drives, motors, or field devices in an ECOFAST wiring system — no field crimping or connector assembly needed.
The 7 x 2.5mm² cross-section supports power and control in one jacket — typical for feeding a motor with brake or encoder lines alongside the main power pair. The 3m length suits cabinet-to-machine drops or short field runs where a custom-cut cable would add labor and connector risk.