RKL4769 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4769 is part of the RKL Motor Power Cables series and features a PUR cable jacket in orange with a 29.8 mm outer diameter. It has power conductors with a 25.0 mm² cross-section and is rated for use in drag chains. The fixed bending radius is 5 times the diameter, and the flexible bending radius is 7.5 times the diameter.
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Product Description:
The RKL4769 cable is a motor power lead produced by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It connects drive inverters to servo or spindle motors in automated assembly lines, packaging stations, and machining centres, transferring three-phase power alongside pilot and earth conductors. The design goal is stable voltage delivery, noise suppression, and mechanical durability when the installation is either fixed inside a cabinet or flexing along an energy chain.
Under stationary mounting, the minimum bend radius equals 5 x D, meaning the installer must keep the curvature at least five times the 29.8 mm diameter to avoid conductor strain. When the cable reciprocates in a carrier, the allowable radius tightens to 7.5 x D, a parameter defining safe repetitive motion. The outer diameter of 29.8 mm houses finely stranded 25 mm² copper cores whose loop resistance is limited to 0.78 Ohm/km, so voltage drop remains low on long runs. Signal integrity for temperature sensors, brakes, or holding-torque feedback is supported by separate control pairs sized at 1.5 mm². These dimensional and electrical figures specify clear routing guidelines and predict power losses for system energy audits.
In dynamic axes the cable also limits reactive currents through a dielectric design that yields a discharge capacitance of 1.1 nF/m. The three power cores feature a cross-section of 25.0 mm², providing enough ampacity for medium-frame servo motors without excessive heating. A halogen-free sheath made of PUR resists cutting oils, weld spatter, and torsional stress, while its surface is coloured Orange (RAL 2003) to signal high-voltage content in mixed cable trays. The earth conductor, identified by a green/yellow stripe, completes the EMC concept, and certification for drag-chain use means the jacket can withstand millions of bending cycles at specified accelerations without cracking.
Frequently Asked Questions about RKL4769:
Q: What is the minimum bending radius for the RKL4769 cable when installed in a fixed position?
A: The minimum bending radius for the RKL4769 cable when installed in a fixed position is 5 times the cable diameter.
Q: Is the RKL4769 cable suitable for use in drag chains or continuous motion setups?
A: Yes, the RKL4769 is designed for use in drag chain applications.
Q: What material is used for the outer jacket of the RKL4769 cable?
A: The RKL4769 cable features a PUR (polyurethane) jacket, providing notable durability and resistance to mechanical wear.
Q: What is the power conductor resistance specification of the RKL4769 cable?
A: The conductor resistance for power transmission on the RKL4769 is 0.78 Ohm per kilometer.
Q: What is the color specification for the outer jacket of the RKL4769 cable?
A: The RKL4769 cable has a bright orange outer jacket, matching color code RAL 2003.
