What it is — and what the specs mean for fit
The Siemens 3RK1911-0CV20 is a preassembled ECOFAST motor connection cable. It carries four power conductors at 2.5 mm² and four signal conductors at 0.75 mm², all shielded, with a HAN 10E male connector on one end. The other end is unterminated — cut to your exact run length, specified when ordering in 10 cm increments, up to 3 m. That 4 + 4 conductor count means it handles both motor power and feedback (encoder, thermostat, brake) in one jacket, saving a second cable tray run.
Where it's used — deployment context
This cable lives on the motor side of an ECOFAST distribution system — common in conveyor, pump, and material-handling lines where a single hybrid cable replaces separate power and feedback runs. The HAN 10E connector mates directly to the ECOFAST motor plug (typically on a Siemens 3RK1 motor starter or distribution box). Shielded construction means it's suited for variable-frequency-drive environments where conducted EMI would otherwise corrupt encoder signals.