RL2-085HBB by Bosch Rexroth Indramat

The RL2-085HBB motor power cable is manufactured by Bosch Rexroth Indramat and supplied within the RL2 Motor Power Cables series. Classified under the Rexroth Cable product group, it links second-generation IndraDrive servo motors to their drives, carrying three-phase power, brake control, and auxiliary signals so that motion axes receive regulated current and feedback in automated machinery. The preassembled harness simplifies installation in energy chains and keeps cabinet wiring consistent across multiaxis production lines.

Its mechanical design targets continuous flexing in cable tracks, and the polyurethane outer jacket in orange RAL 2003 protects the basic construction of four load conductors and four 0.75 mm² signal cores. The cable endures 5,000,000 or more bending cycles when installed within the recommended minimum dynamic radius of 7.5 × D, while stationary runs may be formed down to 5 × D. Each load conductor has a cross-section of 10.0 mm², allowing efficient current transfer without excess heating. During motion, the polymer insulation remains functional from -20 to +60 °C, and individual copper strands may reach +80 °C in flexing or +90 °C when clamped, matching the needs of second-generation motor sets.

Electrical parameters align with industrial low-voltage supplies. The power cores are rated to 600/1000 V, and the integrated sensor lines withstand 450/750 V. Signal integrity is supported by an insulation resistance of 20 M?/km or more at 20 °C, which helps limit leakage over long runs. For rotating modules or robots, the construction tolerates torsional stress of up to ±30°/m so the conductors do not fatigue under repetitive swiveling. When clamped, the assembly operates from -30 to +80 °C, matching fixed-installation temperature limits and preventing jacket embrittlement.