RKL4730 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4730 is part of the RKL Motor Power Cables series. This cable features a dynamic bending radius of 7.5 times the diameter, supports 5,000,000 bending cycles, and has a PUR jacket in RAL 2003 orange. It uses a bulk cable type INK0667, has an outer diameter of 30.8 mm, and a power conductor cross-section of 35.0 mm².
Internal Product Review
The RKL4730 from Bosch Rexroth Indramat is a robust motor power cable designed for demanding industrial environments, featuring a PUR jacket and RAL 2003 orange color for high visibility and durability. It offers a 35.0 mm² power conductor cross-section and is rated for up to 5,000,000 bending cycles, making it highly suitable for dynamic applications. The cable's reliable connectors and resistance to wear ensure consistent power delivery and extended service life.
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Product Description:
The RKL4730 is a flexible motor power cable manufactured by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It links an IndraDrive controller to a synchronous or asynchronous servo motor and is intended for continuously moving energy-chain installations in industrial automation cells, material-handling gantries, and pick-and-place modules. Its design supports reliable three-phase power delivery while tolerating repetitive motion and tight routing inside machine frames. The flexible cable construction also accommodates the repeated directional changes associated with dynamic servo applications.
The cable contains three power cores, each with a cross-sectional area of 35.0 mm², which minimizes voltage drop over long runs. Each conductor has a resistance of 0.554 Ω/km, keeping thermal losses low during sustained current draw. Despite its current-carrying capacity, the outer sheath measures only 30.8 mm in diameter, allowing compact routing in energy chains. During operation, the jacket can bend to a dynamic radius of 7.5 × D without damaging the insulation. The cable has a rated service life of 5,000,000 continuous bending cycles under this condition. Its combination of conductor size and compact diameter supports installation in confined machine spaces that require frequent cable movement.
A polyurethane jacket made from PUR resists cutting fluids and weld spatter, while its high-visibility color matches RAL 2003. This orange color makes the cable easier to distinguish from surrounding control and feedback wiring. Factory-molded terminations simplify installation: the drive end uses an RLS0724/K35 connector, and the motor end is fitted with an RLK1301 connector. A static bending radius of 5 × D supports fixed routing segments between moving sections. The bulk cable reference is INK0667, providing the corresponding cable construction for field-assembled lengths. These routing allowances permit the cable to transition between stationary attachment points and moving energy-chain sections without placing excessive stress on the jacket or internal conductors.
