RKL4424 by Bosch Rexroth Indramat

The RKL4424 cable is manufactured by Bosch Rexroth Indramat and is part of the RKL Motor Power Cables series. This product is a shielded motor power cable that routes three-phase power and auxiliary control circuits between drive controllers and moving servo or induction motors in automated production equipment. Its design supports continuous motion in cable tracks and helps limit electromagnetic interference so nearby feedback and sensor lines in the same energy chain are less likely to be affected.

For mechanical layout, the cable permits a fixed installation bend of 5 × D and a dynamic bend of 7.5 × D, allowing tight routing inside articulated drag chains without exceeding conductor strain limits. The overall diameter is 22.2 mm, a dimension used when selecting glands and chain cavities. Internally, the bundle follows a 4x10.0 mm² + 2x1.0 mm² + 2x1.5 mm² conductor scheme, so three power phases share equal cross-sections while the smaller conductors carry brake or sensor circuits. A 10.0 mm² power core size keeps voltage drop low on cable lengths commonly used in large gantries or transfer lines. The jacket withstands oil, welding spatter, and repetitive motion, and its halogen-free formulation helps limit toxic gas release during a cabinet fire.

The electrical profile shows a line-to-line capacitance of 1.0 nF/m, helping the drive output filter remain stable and minimizing reactive charging current on long runs. Direct-current resistance is 1.91 ?/km, so I²R heating can be calculated for cycle-duty sizing. Both the power trio and the auxiliary pairs are rated for 600 V AC, letting the same cable handle power and control circuits when adequate segregation is maintained at the termination points. A tough PUR sheath in the distinctive RAL 2003 (Orange) color makes the cable easy to identify inside a crowded machine frame while also resisting abrasion and coolant ingress.