RKL4538 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4538 is part of the RKL Motor Power Cables series and has a bending life of 5,000,000 cycles. This cable features a PUR jacket in RAL 2003 orange, an overall diameter of 29.8 mm, and power wire cross-section of 25.0 mm². It is designed for use in drag chains and supports a minimum flexible bend radius of 7.5 times the cable diameter.
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Product Description:
The RKL4538 is a motor power cable produced by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It supplies three-phase power and low-level control leads from a cabinet-mounted drive to a moving servo motor, enabling coordinated motion in industrial automation cells that rely on continuous drag chain travel.
This cable is rated for 5,000,000 flex cycles, so repeated motion within an energy chain will not accelerate conductor fatigue. A distributed capacitance of 1.1 nF/m helps the connected drive calculate reactive current and limits voltage drop over long runs. Copper strands present a direct-current resistance of 0.78 Ω/km at 20 °C; low resistance reduces I²R heating and supports high peak currents during motor acceleration. The power cores are sized at 25.0 mm², giving adequate ampacity for large synchronous motors, while the overall outside diameter of 29.8 mm determines gland and conduit selection when routing the assembly through machine frames.
Further installation parameters reinforce flexible handling. A minimum dynamic bend radius of 7.5 × D preserves insulation integrity when the cable is looped around small chain cavities. Separate feedback or brake functions can share the harness because the auxiliary pairs use a 1.5 mm² cross-section that matches typical sensor loads. The outer sheath is a tough PUR compound that resists coolant splash, and its RAL 2003 orange color improves visual identification in maintenance aisles. Drag-chain suitability is confirmed, and an optional separable connection allows rapid replacement of worn lengths without pulling the entire run. These properties combine to maintain electrical performance, limit mechanical stress, and streamline service tasks in automated production lines.
Frequently Asked Questions about RKL4538:
Q: How many bending cycles can the RKL4538 power cable withstand?
A: The RKL4538 cable supports up to 5,000,000 bending cycles for reliable operation in dynamic applications.
Q: What is the outer jacket material of the RKL4538 cable from Bosch Rexroth Indramat?
A: This model features a jacket made of PUR for enhanced flexibility and durability.
Q: What is the cross-sectional area of the power wires in the RKL4538 motor power cable?
A: The RKL4538 cable has a power wire cross-section of 25.0 mm².
Q: Is the RKL4538 cable designed for use in drag chain systems?
A: The RKL4538 is suitable for drag chain applications, providing flexible connection in moving machinery.
Q: What color is the jacket of the RKL4538 cable as per the manufacturing specifications?
A: This cable is colored RAL 2003 (orange) for high visibility in industrial environments.
