RL2-085HBB Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RL2-085HBB is part of the RL2 Motor Power Cables series and features a PUR jacket with a cross section of 10.0 mm². This cable supports rated voltages of 600/1000 V for power and 450/750 V for signal, and is designed for over 5,000,000 bending cycles. It can operate at temperatures from -30 to +80 °C when fixed and from -20 to +60 °C when flexible.
Internal Product Review
The RL2-085HBB from Bosch Rexroth Indramat is a RL2 Motor Power Cable designed for 2nd generation motors, featuring a basic 4x L + 4x 0.75 mm² cable configuration. Withstanding over 5,000,000 bending cycles and operating at rated voltages of 600/1000 V for power, this cable delivers exceptional durability and reliable performance in dynamic motion applications. The PUR jacket provides strong resistance to mechanical stress and ensures a long service life.
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Product Description:
The RL2-085HBB power cable is produced by Bosch Rexroth Indramat and belongs to the RL2 Motor Power Cables series. It serves as the dedicated supply and feedback link between second-generation synchronous motors and their drive controllers in automated machinery, carrying mains and auxiliary conductors within a single routed harness. Its design supports continuous flexing so that energy-chain or robot joints can move without stressing the electrical connections.
Electrically, the cable contains a core arrangement of 4x L + 4x 0.75 mm², where four power phases share a collective copper cross-section of 10.0 mm² while four smaller signal cores handle brake or sensor functions. The insulation system withstands a rated potential of 600/1000 V on the power legs and 450/750 V on the auxiliary pairs; this separation keeps control electronics isolated from the drive bus. An insulation resistance of ≥ 20 MΩ/km at 20 °C limits leakage currents and helps the maintenance team verify ageing through periodic meg-ohm tests. Conductor temperatures may reach 80 °C during motion and 90 °C in fixed routing without compromising dielectric strength, and the orange PUR jacket resists cutting oils while meeting RAL 2003 identification.
Mechanical flexibility defines the service life of this Rexroth cable. The PUR sheath and basic internal construction endure ≥ 5,000,000 bending cycles in drag-chain operation, provided the dynamic bend radius is kept at 7.5 × D. Static routing can tighten to 5 × D where no cyclic flex occurs. Robot wrists add torsional stress, and the cable tolerates twists up to ≤ ± 30°/m without core corkscrewing. Continuous movement is possible between −20 and +60 °C, while installations fixed to machine frames remain functional from −30 to +80 °C. Because the product belongs to the Rexroth Cable group, its sizing and connector interfaces align with second-generation motor pinouts, and the basic design simplifies stocking for spare-part programs.
