RKL4595 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4595 is part of the RKL Motor Power Cables series and is designed with a PUR cable jacket and an outer diameter of 22.2 mm. It features 4x10.0 mm² power conductors and 2x1.0 plus 2x1.5 mm² control conductors, suitable for drag chain applications with up to 5,000,000 bending cycles. The cable's minimum bend radius is 5xD fixed and 7.5xD flexible.
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Product Description:
The RKL4595 motor power cable is manufactured by Bosch Rexroth Indramat as part of the RKL Motor Power Cables series. It is engineered to convey three-phase power and auxiliary control signals between IndraDrive servo drives and synchronous motors in automated machinery. By combining finely stranded copper conductors with a rugged outer sheath, the cable maintains signal integrity and mechanical reliability inside moving drag chains, pick-and-place axes, and gantry systems where continuous flexing is unavoidable. Within industrial automation cells, it serves as the electromechanical link that delivers drive current, carries brake and temperature sensor signals, and supports coordinated motion across multi-axis assemblies.
It withstands up to 5,000,000 flex cycles before conductor fatigue becomes likely. The outer sheath is molded from PUR, providing the abrasion resistance and oil tolerance needed on machining centers. An overall diameter of 22.2 mm allows compact cable routing in energy chains without excessive fill. Four power cores with a combined layout of 4 × 10.0 mm² carry motor phase current. A loop resistance of 1.91 Ω/km limits voltage drop over long machine runs and supports efficient power transmission. The conductor arrangement separates the main power paths from the smaller auxiliary circuits used by motor-mounted devices.
For connection to the drive, the cable terminates in an RLS0723 circular connector, while motor-side mating plugs are ordered separately. Control wiring for brakes or temperature sensors is integrated through 2 × 1.0 + 2 × 1.5 mm² auxiliary conductors, eliminating the need for a second harness. Fixed installations require a minimum bend radius of 5 × D. During continuous movement, the cable requires a minimum dynamic bend radius of 7.5 × D, so carriers and strain-relief fittings must maintain this clearance to protect the conductors. The assembly is suitable for drag-chain service and remains flexible between -20 °C and +40 °C during continuous motion. Proper support along the carrier path helps prevent twisting, localized compression, and excessive tensile loads during repeated machine cycles.
