RKL4329 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4329 is part of the RKL Motor Power Cables series. This basic model power cable has eight conductors and supports up to 5,000,000 bending cycles. It features a power conductor size of 10.0 mm² and operates in temperatures from -30 to 80 degrees Celsius.
Internal Product Review
The RKL4329 is a robust power cable from Bosch Rexroth Indramat's RKL Motor Power Cables series, designed for demanding motion control applications. With support for up to 5,000,000 bending cycles and an operating temperature range of -30 to 80 °C, this cable ensures durability in dynamic environments. Its flexible design and reliable conductor sizing make it an excellent choice for long-term installations.
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Product Description:
The Bosch Rexroth Indramat RKL4329 belongs to the RKL Motor Power Cables series and serves as the dedicated power link between an IndraDrive controller and a servo motor in automated machinery. It routes three-phase supply lines and auxiliary conductors through a flexible jacket, allowing continuous movement inside drag chains while keeping cabinet wiring organized. Its ability to transmit electrical power during repeated motion makes the cable suitable for controlled axes on packaging lines, gantries, and material-handling systems.
The harness contains 8 copper conductors that separate the high-current circuits from the auxiliary connections. Each of the three power conductors has a cross-sectional area of 10.0 mm², which helps minimize resistive losses before power reaches the motor terminals. The control conductors connected to pins 5 and 6 have a cross-sectional area of 1.0 mm². The brake conductors on pins 7 and 8 have a larger cross-sectional area of 1.5 mm², helping limit voltage drop when the brake coil is energized. A keyed RLS0723/K10 controller connector terminates one end of the assembly, while an RLS1301/C10 motor connector terminates the opposite end. The insulation system is based on the INK0605 bulk cable design and resists exposure to cutting fluids commonly present in machining cells.
The cable has a mechanical service life of 5,000,000 flex cycles, allowing its jacket and conductors to withstand repeated movement in high-speed carrier chains. During motion, the cable must maintain a minimum bending radius of 7.5 × D to prevent excessive mechanical stress. A fixed installation permits a tighter minimum bending radius of 5 × D. The cable remains stable across an operating temperature range of -30 °C to 80 °C, and the same range applies during storage. Following the applicable bending limits helps prevent jacket deformation and conductor fatigue during moving or stationary service. The permitted temperature range protects the insulation from thermal embrittlement in cold conditions and excessive softening at elevated temperatures.
