RKL4765 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4765 is a power cable from the RKL Motor Power Cables series, featuring 4 power conductors with a cross-section of 35.0 mm² and 4 control conductors at 1.5 mm². It has a nominal cable diameter of 30.8 mm and is designed with a PUR jacket material. The cable supports 5,000,000 bending cycles and can operate at voltages of 300/500 V for power wires and 300/300 V for control wires.
Internal Product Review
The RKL4765 is a robust motor power cable from Bosch Rexroth Indramat designed for demanding automation tasks. It features a PUR jacket and supports up to 5,000,000 bending cycles, ensuring outstanding durability in dynamic applications. This cable stands out for its long service life and reliable power and control transmission.
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Product Description:
The RKL4765 is a motor power cable manufactured by Bosch Rexroth Indramat for the RKL Motor Power Cables series. Intended for high-dynamic servo axes in packaging, handling, and machining centers, the cable delivers three-phase power, protective earth, and feedback conductors from the drive controller to the motor connector. It supports low-loss energy transfer during rapid motion and carries dedicated control pairs that synchronize auxiliary functions in automated equipment.
The cable survives up to 5,000,000 flex cycles, a rating that indicates how many programmed bends it can withstand before conductor or insulation fatigue becomes critical. During motion, it may curve to a minimum bend radius of 7.5 × D, where D is the outer diameter, preventing copper strand overstress. Overall copper resistance is limited to 0.554 Ω/km at 20 °C, so voltage drop along typical machine lengths remains small even when servo currents peak. Four power cores with a cross-sectional area of 35.0 mm² handle continuous currents associated with 300-volt drives. The insulation on these cores supports 300/500 V operation. A tough PUR outer jacket resists oils, spatter, and repetitive torsion. The nominal outside diameter is 30.8 mm, while a static bend limit of 5 × D applies to fixed routing segments.
The cable includes four control conductors. Each auxiliary core has a cross-sectional area of 1.5 mm², which is suitable for brake coil or PTC sensor currents without unnecessarily enlarging the bundle. Their insulation tolerates up to 300/300 V, so low-level services can safely share the harness beside the power conductors. Distributed capacitance is rated at 1.2 nF/m; this predictable capacitive loading supports common-mode filter selection and helps prevent feedback signal distortion over long cable runs.
