The Siemens 3RK1911-0BJ30 is a pre-assembled ECOFAST motor connection cable, 11 x 1.5 mm², 5 m long, terminated on one end with a Han 10E connector. This is the cable that runs from the motor to the AS-i or PROFIBUS motor starter interface — it's not a general-purpose power cable, but a field-wireable assembly for the SIRIUS ECOFAST system, designed to bring motor power and feedback signals through a single hybrid connector. The 11 conductors bundle three phases, PE, and the control/sensor lines needed for a distributed motor starter setup, saving a separate sensor cable run.
The substance prohibitance date of 01.05.2012 reflects the RoHS compliance cutoff for this variant — the cable itself is RoHS-compliant, but the marking notes the date the prohibition took effect under Siemens' own substance control policy.
What fits where
The single-sided Han 10E connector mates with the ECOFAST motor starter or the motor-side receptacle — the bare-end side terminates in the motor junction box. The 11 x 1.5 mm² conductor count covers the standard ECOFAST pinout: three phases, PE, 24 V DC control supply, and up to four signal wires for sensors or brake control. At 5 m it covers the typical distance from a distributed starter cabinet to a motor on a conveyor or pump skid; for longer runs you step up to the 10 m or 15 m variants in the same family. The cable is oil-resistant and rated for drag-chain use in the ECOFAST system — suitable for machine-tool and handling applications where the cable sees flexing.