RKL4755 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4755 is a cable from the RKL Motor Power Cables series, featuring 4 power conductors with a cross-section of 4.0 mm² and 4 auxiliary conductors. It is designed for up to 5,000,000 bending cycles and supports a flexible operating temperature range of -20 to +40 °C. The minimum bending radius for flexible use is 7.5 times the cable diameter.
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Product Description:
The RKL4755 motor power cable is supplied by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It is intended for fixed or dynamic routing between servo drives and machine motors in automated lines, providing balanced three-phase energy plus auxiliary functions through its internal conductors. The sheath carries four power cores as well as four auxiliary conductors for brake or sensor circuits, so a single run covers all required motor connections. By combining these paths, the cable simplifies cabinet wiring and supports compact machine layouts.
Four dedicated phase paths deliver the main current, and the matching protective conductor brings the total number of power cores to 4. Each of these cores uses a copper cross-section of 4.0 mm², giving the assembly a low resistive drop for lengths allowed by the drive sizing tables. The outer jacket is qualified for 5,000,000 bending cycles in drag-chain operation, and mechanical damage is further prevented when the cable is installed on a fixed routing radius of 5 × D. Under stationary conditions it remains functional from -30 to +40 °C, allowing use in unheated production halls.
Dynamic applications are handled with a flexible routing limit of 7.5 × D, after which conductor stress would exceed specification. Internal control pairs support temperature monitoring or brake release; the pair assigned to wires 5 and 6 is rated at 1.0 mm², while the pair for wires 7 and 8 is 1.5 mm², enabling separate current capacities for feedback devices. When motion is continuous, the sheath endures ambient swings from -20 to +40 °C, and the PVC insulation tolerates conductor temperatures up to +80/+90 °C during flexible and fixed duty respectively. The allowed storage temperature is identical to the fixed operating limits, and identical auxiliary and power core counts simplify connector selection.
Frequently Asked Questions about RKL4755:
Q: How many auxiliary conductors are included in the RKL4755 cable?
A: The RKL4755 power cable is equipped with four auxiliary conductors.
Q: What is the bending cycle rating for the RKL4755 power cable?
A: This cable supports up to 5,000,000 bending cycles, ensuring high durability in motion applications.
Q: What is the cross-sectional area of the power wires in the RKL4755 cable?
A: The cross-section for power wires in this model is 4.0 mm², supporting robust current capacity.
Q: What is the minimum bending radius when installing the RKL4755 cable in a fixed position?
A: For fixed installation, the minimum bending radius is specified as 5 times the cable diameter.
Q: What operating temperature range is supported for flexible use of the RKL4755 power cable?
A: The RKL4755 cable is designed to operate in ambient temperatures from -20 to +40 °C during flexible use.
