The Siemens 3RK1911-0BK20 is a ready-made ECOFAST motor connection line, 3 meters long, with 11 conductors of 1.5mm² each, terminated on both ends with Han 10E connectors. It's a pre-assembled cable for connecting servo motors or drives to the control cabinet — no field wiring, no crimping.
The 3-meter length and double-sided Han 10E connectors mean it's built for a clean drop from a servo drive to a motor — think a small conveyor section or a pick-and-place axis where the drive cabinet sits within arm's reach of the motor. The 11x1.5mm² conductors handle the power and feedback lines in one jacket, so you're not running separate cables for brake, encoder, and power.