RKL4600 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4600 is part of the RKL Motor Power Cables series and is designed for drag chain use. The cable features a PUR adhesion-free, matte jacket and supports 5 million bending cycles. It has power wires with a cross-section of 1.0 mm² rated at 300/500 V and control wires rated at 0.75 mm² and 300/300 V.
Internal Product Review
The RKL4600 is a motor power cable from Bosch Rexroth Indramat, engineered for drag chain applications and rated for up to 5 million bending cycles. Its PUR matte jacket is adhesion-free and the power wires support up to 300/500 V, ensuring reliable performance in dynamic environments. This cable stands out for durability and flexibility in demanding motion systems.
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Product Description:
The RKL4600 motor power cable is produced by Bosch Rexroth Indramat as part of the RKL Motor Power Cables series. It connects servo amplifiers to motors in automated machines, supplying three-phase power along with paired control conductors. The cable is intended for continuously moving installations where repeated flexing and compact routing are unavoidable, such as in pick-and-place modules, gantry loaders, and carton formers. Its construction is intended for industrial automation environments that demand mechanical endurance and stable electrical performance during constant machine motion.
For motion axes mounted in energy chains, the cable is rated for 5 million bending cycles, confirming suitability for prolonged dynamic service. A minimum dynamic bend radius of 7.5 × D helps prevent conductor fatigue during rapid traverses, while the static radius of 5 × D applies when the machine is at rest. The outer jacket is a matte, adhesion-free PUR sheath that resists oils and welding spatters without bonding to neighboring cables. Displacement of stored charge is limited by a discharge capacity of 0.6 nF/m, which helps reduce capacitive loading on drive outputs. The cable is also suitable for drag-chain installation in systems that use repeated reciprocating motion.
Electrical properties match the needs of low-voltage servo systems. The copper conductors show a resistance of 19.5 Ω/km at 20 °C, minimizing I²R losses over typical machine lengths. Each control core has a cross-section of 0.75 mm², giving clear signal margins for enable, brake, or sensor lines, while the power cores measure 1.0 mm² to carry motor phase current. Drive builders can apply up to 300/500 V to the power trio under VDE guidelines, and separate insulation allows the control pairs to operate at 300/300 V without interference. The separate conductor groups keep motor power and auxiliary signals organized within one flexible cable body, which supports compact routing in moving machinery.
