RKL4777 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4777 is part of the RKL Motor Power Cables series and features a PUR matte adhesion-free cable jacket in RAL 2003 orange. This cable has two control pairs with a cross-section of 2 x 1.5 mm² and a power core size of 4 x 16.0 mm². It supports up to 5,000,000 bending cycles and has a cable outer diameter of 25.5 mm.
Internal Product Review
The RKL4777 is a robust motor power cable from the RKL series by Bosch Rexroth Indramat, featuring a PUR matte, adhesion-free jacket in RAL 2003 orange for excellent durability and visibility. Designed for demanding applications, it supports up to 5,000,000 bending cycles with a dynamic bending radius of 7.5 × D, making it highly suitable for flexible automation environments. The cable's reliable build and high cycle rating ensure consistent performance in continuous-motion installations.
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Product Description:
The RKL4777 is a motor power cable engineered by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It supplies drive power and auxiliary signals between servo drives and motors in automated machinery, where robust flex performance and defined electrical characteristics are mandatory.
This cable is built for up to 5,000,000 flex cycles, supporting continuous-motion cable tracks in high-duty axes. During motion the minimum bend radius is limited to 7.5 × D, while at rest it may be parked at 5 × D; these ratios help prevent shield or conductor fatigue. The jacket diameter of 25.5 mm defines required carrier dimensions and gland entries, and its outer sheath is colored RAL 2003 (Orange) for quick identification in mixed cable bundles. A PUR compound with a matte, adhesion-free surface resists oil and weld spatter and avoids sticking inside energy chains. Bulk lengths are supplied on INK0606 spools so machine builders can cut assemblies to required runs.
Power conductors are arranged as 4 × 16.0 mm² to handle the current demanded by Indramat servo motors, while two shielded feedback circuits use 2 × (2 × 1.5 mm²) control pairs for brake and temperature signals. The loop resistance of the copper cores is held to 1.21 Ω/km, limiting voltage drop on long traverses. Factory-molded terminations include an RKL1301 plug on the motor side and a RLS0724 (K16) hybrid connector for the drive cabinet, ensuring correct pin mating and strain relief without field crimping.
