RL2-500CBT Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RL2-500CBT is a motor power cable from the RL2 Motor Power Cables series designed with a torsion-capable structure and a PUR jacket. It features 4 x 1.0 mm² power conductors, 4 x 0.75 mm² auxiliary conductors, and supports a torsion rating of ±180° per 30 cm. The cable has a minimum dynamic bend radius of 7.5 times the cable diameter and an insulation resistance of at least 20 MΩ per kilometer.
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Product Description:
The RL2-500CBT motor power cable is supplied by Bosch Rexroth Indramat within the RL2 Motor Power Cables series. Classified under the Rexroth Cable product group, it carries the cable type 4x L + 4x 0.75 mm² and is matched to 2nd-generation motors. In industrial automation it links the drive controller to the motor, delivering phase power and auxiliary signals while tolerating continuous torsion inside robotic joints and axis chains.
In operation the cable routes four phase lines of 4 x 1.0 mm² copper together with auxiliary pairs of 4 x 0.75 mm² conductors, allowing separate supply for brake, sensor or fan loads. An overall diameter of 12.2 mm keeps harness bundles compact, and a dynamic bend radius of 7.5 x D enables repeated flexing on energy-chains without conductor fatigue. Under torsional stress the assembly withstands rotations of ±180°/30 cm, so pendant axes can turn half a revolution per segment without pulling on terminations. Internally, finely stranded copper effectively minimises skin effect, and textile fillers preserve core symmetry during torsional cycles and damp vibration.
The power core has a nominal cross-section of 1.0 mm² and its polyethylene-insulated layers achieve insulation resistance of ≥ 20 MΩ/km at 20 °C, limiting leakage current over extended runs. A rugged PUR outer jacket resists oil and coolant while ensuring cable tracking along drag chains. When stationary the cable may be routed to a static bend radius of 5 x D, complementing the torsion-oriented design that distinguishes the cable’s dedicated Torsion construction. These characteristics maintain signal integrity and mechanical life during start-stop cycles and intermittent axis locking.
Frequently Asked Questions about RL2-500CBT:
Q: Which motor generation is compatible with the RL2-500CBT power cable?
A: The RL2-500CBT is designed specifically for the 2nd generation of Rexroth motors.
Q: What material is used for the jacket of the RL2-500CBT cable?
A: The RL2-500CBT features a PUR jacket material for its outer sheath.
Q: What torsion rating does the RL2-500CBT cable support during operation?
A: This cable supports a torsion rating of ±180° per 30 cm, suitable for dynamic installations.
Q: How many power conductors are included in the RL2-500CBT cable?
A: The RL2-500CBT provides four power conductors each with a cross section of 1.0 mm².
Q: What is the minimum bend radius for dynamic applications of the RL2-500CBT cable?
A: The minimum allowable dynamic bend radius for the RL2-500CBT is 7.5 times the diameter of the cable.
