RKL4429 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4429 is part of the RKL Motor Power Cables series and features a halogen-free PUR jacket in RAL 2003 orange. The cable has a diameter of 25.5 mm, supports up to 5,000,000 bending cycles, and can be used in energy chains. It has a conductor cross-section of 16.0 mm² for power and operates at up to 300/500 V.
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Product Description:
The RKL4429 is a dynamic motor power cable manufactured by Bosch Rexroth Indramat and supplied within the RKL Motor Power Cables series. It carries three-phase power and auxiliary control signals between servo drives and motors in automated machines, providing a mechanically robust link that withstands continuous motion inside energy-chain systems.
The cable is rated for 5,000,000 flex cycles and is therefore suitable for high-duty drag-chain paths. A minimum bend radius of 5 × D applies when the cable is fixed, while a larger radius of 7.5 × D is required during reciprocating movement to limit conductor stress. Power conductors use a cross-section of 16.0 mm²; this size, combined with the 4×16.0 + 2×(2×1.5) StC layout, supports low-loss three-phase transmission and two shielded control pairs. Loop resistance is only 1.21 ohm/km, helping drives hold voltage under peak load. Control cores tolerate 300/300 V, and their distributed capacitance of 1.2 nF/m allows accurate encoder or brake signals. The cable is certified for energy-chain installation, and its halogen-free design limits corrosive gas release during fire.
A circular diameter of 25.5 mm simplifies routing through narrow carriers while preserving conductor fill factors. The power cores operate at up to 300/500 V, matching typical inverter outputs in servo systems. Copper strands may reach 90 °C when permanently installed, so the outer sheath uses PUR (adhesion-free, matt) to resist heat, oil, and abrasion. The orange RAL 2003 jacket improves visibility in automated cells, and the polyurethane compound remains flexible without plasticizers, supporting consistent performance throughout the specified life cycle.
Frequently Asked Questions about RKL4429:
Q: What is the bending cycle rating for the Bosch Rexroth Indramat RKL4429 cable?
A: The RKL4429 supports up to 5,000,000 bending cycles, making it suitable for high-flex applications.
Q: What is the power conductor cross-section in the Bosch Rexroth Indramat RKL4429 cable?
A: The RKL4429 has a conductor cross-section of 16.0 mm² for power conductors.
Q: Can the Bosch Rexroth Indramat RKL4429 cable be used in energy chain applications?
A: Yes, the RKL4429 is rated for use in energy chains, allowing for dynamic movement.
Q: What material and color is used for the jacket of the RKL4429 cable?
A: The outer jacket of the RKL4429 is made from matte, adhesion-free PUR and colored RAL 2003 orange.
Q: What is the maximum conductor temperature for the RKL4429 cable when fixed?
A: The maximum conductor temperature for the RKL4429 in fixed installation is 90°C.
