RKL4424 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4424 is part of the RKL Motor Power Cables series and features a PUR jacket in RAL 2003 orange with an outer diameter of 22.2 mm. It has a conductor makeup of 4x10.0 mm², 2x1.0 mm², and 2x1.5 mm², and supports a voltage rating of 600 V AC for both power and control. This halogen-free cable is suitable for drag chain use and has a capacitance of 1.0 nF/m.
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Product Description:
The RKL4424 motor power cable is manufactured by Bosch Rexroth Indramat as part of the RKL Motor Power Cables series. Designed to supply servo motors, it carries three-phase motor power, control voltages, and protective grounding between a drive controller and a synchronous motor. Its composite construction allows high current and auxiliary signals to travel through one cable, reducing installation space and maintaining low-impedance circuits in industrial automation cells. This arrangement also simplifies cable routing where separate power, brake, and sensor cables would require additional space.
For fixed cabinet runs, the minimum bending radius is 5 × D. Moving machine elements that flex in energy chains require a larger radius of 7.5 × D to reduce conductor fatigue during repeated motion. The outer sheath has a diameter of 22.2 mm, and the conductor bundle contains four 10.0 mm² power cores, two 1.0 mm² sensor leads, and two 1.5 mm² brake lines. The copper conductors have a direct-current resistance of 1.91 Ω/km, limiting voltage drop over long motor leads. The motor phase conductors are rated for 600 V AC, making the cable suitable for power delivery to medium-frame servo motors. The conductor sizes also help control thermal rise under sustained electrical loads.
The line-to-shield capacitance is 1.0 nF/m, helping limit reactive current generated by drive switching edges at high pulse-width modulation frequencies. Mechanical durability is supported by a tough PUR jacket that resists oil and weld spatter in production environments. The jacket is colored RAL 2003 orange for high visibility along machine frames and cable carriers. Its halogen-free insulation reduces the release of corrosive gases during a fire. The auxiliary conductors can carry sensor or brake power without requiring separate cabling, while the protective grounding conductor provides a dedicated path for fault current. The combined conductor layout is suitable for automated equipment that requires power and auxiliary functions within a confined routing area.
