RKL4311 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4311 is part of the RKL Motor Power Cables series and features a PUR cable jacket with a diameter of 12.2 mm. This cable supports up to 5 million bending cycles, has a halogen-free construction, and includes M40 9-pin connectors on both ends. It is rated for a power wire voltage of 300/500 V and offers a power wire cross-section of 1.5 mm².
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Product Description:
The RKL4311 is a flexible motor power cable produced by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It is engineered to supply armature current and auxiliary signals between Indramat servo motors and their associated drive amplifiers in automated machinery. The cable supports continuous motion tasks where routing through drag chains, cable carriers, or robotic joints is required, maintaining electrical integrity while withstanding mechanical stress typical of dynamic industrial axes. Its design follows the electrical layout conventions used across the series so installers can substitute lengths without revising connector pin-outs.
The mechanical service life is defined by a rated endurance of 5 million bending cycles, allowing repeated flexing in high-duty applications. During movement the cable should observe a minimum dynamic loop of 7.5×D, while static routing requires only 5×D; these radii minimise conductor strain and prevent insulation cracking. A circular diameter of 12.2 mm makes the assembly compatible with standard M40 glands and energy-chain separators. External abrasion and coolant splashes are resisted by a sheath formed from PUR, a polyurethane compound known for cut resistance and oil tolerance. Together these features let the RKL4311 move with the axis without premature jacket fatigue or conductor breakage.
Electrically, three power cores each have a cross-section of 1.5 mm² and can carry phase potentials up to 300/500 V in equipment that conforms to low-voltage regulations. A separate control pair fabricated at 0.75 mm² handles temperature sensor or brake signals without adding excessive bulk. Total copper path resistance is limited to 13.3 Ohm/km at 20 °C, ensuring modest voltage drop over typical machine lengths. The cable is halogen-free to reduce corrosive gas formation during a fire and is supplied with identical M40 9-pin connectors at both ends to simplify replacement tasks.
Frequently Asked Questions about RKL4311:
Q: How many bending cycles can the Bosch Rexroth Indramat RKL4311 cable withstand?
A: The RKL4311 power cable is designed for a service life of up to 5 million bending cycles.
Q: What material is used for the outer jacket of the RKL4311 power cable?
A: This cable features a PUR jacket, which provides extra durability in demanding environments.
Q: Is the Bosch Rexroth Indramat RKL4311 power cable halogen-free?
A: The RKL4311 is halogen-free, making it safer for applications where low emissions of hazardous gases are required.
Q: What type of connectors are featured on the RKL4311 cable from Bosch Rexroth Indramat?
A: Both ends of the RKL4311 cable use M40 9-pin connectors for secure and reliable connections.
Q: What is the voltage rating of the power wires in the RKL4311 cable?
A: The power wires in the RKL4311 cable support a voltage rating of 300/500 V.
