The Siemens 3RK1911-0BE20 is an ECOFAST power connection line — a pre-terminated cable assembly with 7 conductors of 2.5 sqmm each, cut to a 3 m length and fitted with a HAN Q8/0 + Power T connector at one end. This is a ready-to-install power distribution cable for Siemens ECOFAST modular I/O and motor starter systems, commonly used in distributed automation architectures where a single cable carries both motor power and auxiliary signals to a remote station.
This cable connects an ECOFAST power distribution module (e.g., 3RK1908-0PH00) to a downstream motor starter or I/O island. The HAN Q8/0 + Power T connector mates directly with the ECOFAST bus interface; the 7-conductor layout carries three phases, neutral, PE, and two auxiliary signal wires. The 3 m length suits typical panel-to-machine distances in a control cabinet or junction-box layout. Because the cable is factory-terminated, field assembly errors (pin mismatch, torque variation) are eliminated — a poka-yoke advantage for traceability and zero-defect targets in automotive Tier-1 lines. The 2.5 sqmm conductor cross-section supports currents up to the ECOFAST system rating; verify the connected load's ampacity against the cable's thermal limit in the installation environment.