RKL4302 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4302 is part of the RKL Motor Power Cables series and features a cable diameter of 12.0 mm with a PUR jacket material. This cable has a power wire cross-section of 1.0 mm² and a power wire voltage rating of 600 V, and supports 5 million bending cycles.
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Product Description:
The RKL4302 is a factory-terminated motor power cable supplied by Bosch Rexroth Indramat within the RKL Motor Power Cables series. This assembly routes drive output from a Rexroth controller to the stator terminals of a compatible servo motor, supporting coordinated motion in automated transfer lines, packaging machines, and handling axes. Each cable has an RLS0722/K01 connector on the controller side and an RLS1101/C02 connector on the motor side, allowing the plugs to be mated without cutting or crimping. A PUR outer jacket shields the conductors against oil, abrasion, and coolant splashes commonly found in industrial cabinets and machine frames.
Its circular profile measures 12.0 mm in diameter, permitting routing through standard cabinet glands while maintaining sufficient insulation thickness for electromagnetic shielding. Three power cores have a cross-sectional area of 1.0 mm², enabling continuous current delivery at up to 600 V without excessive temperature rise. A separate auxiliary pair has a cross-sectional area of 0.75 mm² for brake release or temperature monitoring circuits. Copper conductor resistance is limited to 19.5 Ω/km, which keeps voltage drop low across typical machine lengths. The PUR sheath remains flexible when exposed to cutting fluids and is flame-retardant, helping protect the internal conductors as the cable moves with machine carriages. Its round profile also supports orderly placement within cable carriers and enclosed routing channels.
The cable is rated for 5 million flexing cycles in energy-guiding chains, supporting repeated movement in high-duty servo axes. During motion, the minimum dynamic bend radius is 7.5 × D, so a loop of at least 90 mm is required when D equals the stated outer diameter. In static runs, the minimum bend radius may be reduced to 5 × D without stressing the cores. The underlying bulk cable reference is INK0653, which indicates the material and conductor arrangement used for this cable assembly. Maintaining the required bend radii helps prevent conductor fatigue and limits mechanical strain near the preinstalled terminations. The connector arrangement allows the cable to link compatible drive and motor interfaces without additional field termination.
