RKL0039 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL0039 is part of the RKL Motor Power Cables series and uses a bulk cable type INK0604. This cable features phase and protective earth conductors of 6.0 mm², with 1.0 mm² aux conductors, and an outer diameter of 18.5 mm. It utilizes a PUR matte jacket in orange, and includes Clamp Box RLK3101 and Plug Connector RLS0721.
Internal Product Review
The RKL0039 is a Bosch Rexroth Indramat motor power cable featuring a robust PUR jacket in high-visibility orange, which ensures durability and easy identification in industrial environments. It is equipped with a Clamp Box RLK3101 on one end and a Plug Connector RLS0721 on the other, providing reliable connectivity for motor applications. Overall, this cable stands out for its secure connections and tough, flexible construction.
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Product Description:
The RKL0039 is a preassembled motor power cable manufactured by Bosch Rexroth Indramat within the RKL Motor Power Cables series. Designed for servo axes, the cable routes three-phase power, protective earth, and auxiliary conductors between a drive controller and its matched motor, supporting coordinated motion tasks in automated machinery and material-handling cells. Its molded construction and industrial jacket support continuous plant operation while maintaining signal integrity and mechanical reliability under the flexing and exposure common to factory installations.
The bulk cable type is INK0604, which indicates the conductor stranding and insulation used for low-impedance motor feeds. An overall diameter of 18.5 mm provides a fixed reference for gland selection and cable tray fill. Three-phase cores each provide 6.0 mm² of copper to carry continuous motor current, while two auxiliary cores with a cross-sectional area of 1.0 mm² support brake or sensor circuits. A discharge capacitance of 0.8 nF/m keeps common-mode noise within drive tolerances, and the bright orange RAL 2003 jacket improves visibility inside crowded cabinets. The protective earth conductor has the same 6.0 mm² cross-sectional area as the phase conductors to satisfy fault-current requirements. This conductor arrangement separates the motor power paths from the lower-current auxiliary circuits used by connected equipment.
The cable has a dynamic bend radius of 7.5 × D, allowing it to operate in drag chains without excessive conductor stress. A static bend radius of 5 × D applies when the cable is installed in fixed routing. The outer sheath is molded from adhesion-free, matte PUR, which offers abrasion resistance and prevents the cable from sticking to chain links during movement. The motor end is terminated with a Clamp Box RLK3101, while the drive side uses a Plug Connector RLS0721. These factory-installed terminations reduce assembly time and maintain the correct polarity for the phase, earth, and shield connections. The molded connector interfaces also reduce strain where the cable enters each termination during repeated axis movement.
