RLB3-086JEB Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RLB3-086JEB is a power cable from the RLB Motor Power Cables series. It has a cross section of 16.0 mm² and a current carrying capacity of 71.3 Amps. This cable features a PUR jacket, supports up to 5,000,000 bending cycles, and uses an M40 motor-side connector.
Internal Product Review
The RLB3-086JEB is a strong power cable from the Bosch Rexroth Indramat RLB Motor Power Cables series, featuring a 6 AWG cross section and a PUR jacket for high durability in demanding environments. This cable is rated for 71.3 A current carrying capacity and supports up to 5,000,000 bending cycles, making it ideal for dynamic industrial applications. Reliable performance and extended service life are ensured by the high-flex design and quality materials.
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Product Description:
The RLB3-086JEB is a motor power cable assembled by Bosch Rexroth Indramat for the RLB Motor Power Cables series. Classified as a four-core supply line with auxiliary conductors, the cable links MS2(X) synchronous motors to EFC frequency converters, transferring three-phase power and protective earth while remaining compatible with the Rexroth Cables product group. Its role in industrial automation is to provide a mechanically robust and electrically stable connection between the drive controller and the motor’s terminal box.
The conductor bundle is specified at 6 AWG, equivalent to a copper cross-section of 16.0 mm², so it can carry up to 71.3 A continuously without exceeding permissible temperature rise. Four evenly spaced phase lines plus four 1.5 mm² auxiliary cores are arranged within a basic construction that limits mutual inductance and keeps the line-to-line capacitance to 0.6 nF/m. An overall outer diameter of 25.5 mm fits terminal clamps inside an M40 (Terminal Box T) connector on the motor side and standard clamp ranges on the controller side. The polyurethane jacket shields the interior from coolants, oils, and abrasion, while the cable remains certified for deployment with EFC inverters throughout the complete power range these drives support.
Dynamic handling is rated for 5,000,000 bending cycles in energy-chain layouts, allowing long service intervals on gantry or robotic axes that experience constant motion. When routed statically, installers must respect a minimum bend radius of 5 × D; during continuous motion the radius increases to 7.5 × D to avoid conductor fatigue. The tough PUR sheath, combined with the basic cable design, resists micro-cracking under torsion and supports reliable power transfer even in harsh plant environments where oil mist, welding spatter, or cutting fluids are present.
