RKL4598 by Bosch Rexroth Indramat

The RKL4598 cable is a motor power lead manufactured by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It carries three-phase power from drive inverters to servo motors in industrial automation systems. The cable is supplied as a finished assembly, which supports direct connection while preserving the intended electrical and mechanical characteristics. Because it is built for continuous flexing, it is suitable for moving-axis cable chains on packaging lines, gantries, and material-handling robots. In these applications, the assembly must tolerate repeated travel without interrupting power delivery to the motor.

The electrical path uses a copper conductor with a cross-section of 25.0 mm², a size that helps limit resistive losses and keep conductor temperature within acceptable limits at full motor current. During operation, the cable may move through millions of cycles as the axis accelerates, stops, and reverses direction. Its rated life is 5,000,000 bending cycles, which suits equipment with frequent indexing and repeated motion. Flex routing follows a dynamic minimum bend radius of 7.5 × D, which helps protect the stranded conductor during travel. The operating temperature range extends from -30 °C to 80 °C, allowing use in cold storage areas as well as near warm drive enclosures.

For fixed installation, the minimum bend radius can be reduced to 5 × D, which supports tighter routing inside cabinets and machine frames. The assembly is classified as a Ready-Made product and tagged as a Power Cable. It is listed in the Basic model tier, so no additional shielding or sensor pairs are included. That format keeps the assembly focused on motor power transmission rather than combined power-and-feedback service. The jacket also tolerates storage temperatures from -30 °C to 80 °C, so the cable can be kept in inventory without special climate control.