RL2-067KBB by Bosch Rexroth Indramat

The RL2-067KBB is a motor power cable manufactured by Bosch Rexroth Indramat within the RL2 Motor Power Cables series. It is intended to link drive controllers to rotary servo motors in automated machinery, carrying three-phase power and protective conductor signals while withstanding continuous motion cycles common to modern handling systems. By matching the electrical and mechanical requirements of Rexroth second-generation motors, the cable helps maintain predictable current delivery and low-impedance paths that support accurate torque production and fault-free operation in industrial automation cells.

Its conductor set follows the 4x L + 4x 0.75 mm² topology, combining four load lines with four smaller auxiliary cores for temperature or brake circuits. Each load conductor offers a cross-sectional area of 25.0 mm², which helps limit voltage drop over long cable runs and supports high peak currents during motor acceleration. The green-orange sheath is molded from PUR (RAL 2003), a thermoplastic polyurethane that resists oils and weld spatter while remaining flexible in dynamic drag-chain tracks. Dielectric quality is supported by an insulation resistance of at least 20 M?/km (at 20 °C), which helps prevent leakage currents that could trip drive monitoring circuits. During continuous motion, the cable may be flexed down to a radius of 7.5 × D, allowing tight routing through compact machine frames without compromising conductor integrity.

The mechanical load rating also includes a torsional capability of ±30 °/m, so the cable can twist with multi-axis robot wrists without core rupture. Its Basic construction omits additional shielding layers to minimize outer diameter, while the geometry still complies with the internal EMC requirements of the drive package. The cable is intended for the 2nd motor generation, so connector coding and pin assignment match current MSK and MAD motor families. It belongs to the Rexroth Cable product group.