RKL4306 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4306 is part of the RKL Motor Power Cables series and is a ready-made power cable variant. It features 5,000,000 bending cycles, a dynamic bending radius of 7.5 times the cable diameter, and supports temperatures from -30 to 80 degrees Celsius. This cable includes three phase conductors and four brake/control wires with a control wire cross-section of 0.75 mm².
Internal Product Review
The RKL4306 is a ready-made power cable from the RKL Motor Power Cables series, designed for dynamic applications with drag chain compatibility and a bending cycle rating of 5,000,000. Equipped with 3 phase conductors and 4 brake/control wires, this cable supports reliable motor connections and control. Its wide operating temperature range from -30°C to 80°C ensures dependable performance in diverse environments.
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Product Description:
The RKL4306 is a power cable manufactured by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It serves as the primary electrical link between an Indramat drive controller and a servo motor, carrying three-phase power together with auxiliary brake and control signals. Delivered as a ready-made sub-assembly, the cable reduces field wiring and supports continual motion inside industrial drag chains. This arrangement helps maintain stable power transfer while keeping the cable route organized in machines with repeated axis travel.
The internal layout contains three stranded copper phase conductors plus four brake or control leads. Each power core measures 1.5 mm², while the auxiliary set is sized at 0.75 mm², matching typical electrical demands for medium-frame servomotors. The cable is rated for 5,000,000 flex cycles and uses a dynamic bend radius of 7.5xD, supporting continuous reciprocating motion without excessive conductor stress. The outer sheath follows bulk reference INK0650, and the assembly is listed as a power cable variant in the RKL portfolio. For controller termination, it uses an RLS0722/K02 connector, and the cable is suitable for drag-chain routing where oil and metal chip exposure are common. Its stranded construction also helps the cable remain flexible during repeated movement through confined machine paths.
For static sections that experience limited motion, the cable can rest at a minimum radius of 5xD without stress cracking, while the motor end locks to an RLS1201/C03 plug for vibration-resistant mating. Ground continuity is provided by a GNYE protective conductor that runs the full length of the assembly. The cable can be stored or started up at -30 °C and can operate continuously up to 80 °C, allowing use near warm motors and drive cabinets. These temperature limits support installation in equipment that cycles between idle periods and sustained operation. The combination of secure end connections, flexible routing capability, and continuous grounding helps the assembly suit automated axes with frequent repetitive motion.
