RL2-068KBB by Bosch Rexroth Indramat

The RL2-068KBB is a motor power cable produced by Bosch Rexroth Indramat within the RL2 Motor Power Cables series. It links second-generation servomotors directly to matching inverters, delivering three-phase power while carrying encoder signals in a single routed harness. Used in automated gantries, packaging stations, and material-handling axes, the cable allows energy transfer without adding intermediate junctions, which simplifies installation and keeps cabinet layouts compact.

The conductor cross section of 25.0 mm² permits high current flow with limited resistive loss, supporting motors that draw several tens of amperes during acceleration. A flex-rated design verified for 5,000,000 bending cycles works with continuous-motion cable chains found on linear robots. During dynamic movement, the cable must not exceed a bend radius of 7.5 × D, which reduces copper work-hardening and jacket stress. Power cores withstand up to 600/1000 V, so the same lead set handles standard European 400 VAC mains while leaving margin for regenerative voltage peaks. The cable uses a basic mechanical layout that balances durability with a manageable outer diameter.

A wear-resistant PUR outer jacket shields the bundle from coolants and oils and is colored Orange (RAL 2003) for immediate identification inside drag chains. The material is halogen-free, minimizing corrosive gases during a fire, and its fixed routing temperature ceiling is 90 °C. When mounted in static trays, the cable may bend to 5 × D without kinking, enabling tight routing inside compact control enclosures. Signal pairs rated at 450/750 V share the sheath, so feedback lines are protected by the same insulation system as the power phases. Direct connection plugs mate to motor connectors without adapter boxes, and the cable is intended for second-generation drive families.