RKL4534 by Bosch Rexroth Indramat

The RKL4534 is a motor power cable manufactured by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It is designed to connect servo drives to their motors in automated production lines, carrying three-phase power and auxiliary signals while tolerating continuous motion inside cable tracks and articulated arms. By combining dedicated power conductors with two auxiliary pairs, the cable can route brake circuits or thermal sensor connections along the same path as the motor supply. This arrangement reduces the number of separate cables that must move with the axis and helps keep cable routing more organized inside industrial enclosures.

A circular outer sheath measuring 22.2 mm in diameter sets the space needed in energy chains and conduits. Each power core uses a cross-section of 10.0 mm², giving the assembly current-carrying capacity suited to medium-frame synchronous motors. The jacket is molded from PUR, a material selected for resistance to oils, welding sparks, and UV exposure on factory floors. Electrical behavior includes a mutual capacitance of 1.0 nF/m, which is relevant when evaluating cable performance over longer runs. During dynamic routing, the cable must not be bent tighter than 7.5 × D, a limit that helps reduce conductor fatigue during repeated motion.

Durability is rated for 5 million bending cycles, matching the duty expected in pick-and-place gantries and similar automated equipment. Factory termination uses an M23-size hybrid connector identified as INS0482/L10, so the assembly can be connected without on-site crimping. Over distance, the copper exhibits a loop resistance of 1.91 ?/km, a value used to estimate voltage drop between the cabinet and motor. Visual identification on crowded cable trays is aided by the sheath color RAL 2003 (Orange). Additional details include the INK0605 bulk cable reference, auxiliary conductor sizes of 1.0 mm² and 1.5 mm², a fixed bend radius of 5 × D, and composite shielding for high-frequency inverter environments.