RLB2-114KEB by Bosch Rexroth Indramat

The RLB2-114KEB is a motor power cable produced by Bosch Rexroth Indramat within the RLB Motor Power Cables series. It is intended to link MS2 synchronous motors to matching servo inverters, carrying phase power and auxiliary signals without intermediate junctions. In industrial automation, this cable provides the electrical path between moving servo axes and cabinet-mounted drives, maintaining continuity while machines accelerate, decelerate, and change direction.

The conductor bundle has a cross section of 25 mm², enabling the line cores to transfer rated motor current with low resistive loss and controlled temperature rise. When routed through cable chains or robotic arms, the assembly tolerates a dynamic bending radius of 7.5 × D, while fixed installations can use a minimum bend radius of 5 × D. Laboratory data confirm endurance for 5,000,000 cycles of flexing, so it suits high-duty motion sequences. Internally, the wiring uses a 4x L + 4x 1.5 mm² layout, meaning four load conductors carry motor phase power while four smaller cores carry brake release, temperature sensor, or encoder supply lines.

A molded C (M50) Terminal Box on the motor side simplifies strain relief and protects the shield braid at the housing entry. The opposite end terminates with connectors approved for the ctrlX DRIVE platform, ensuring electrical compatibility without field rewiring. Mechanical dimensions and insulation materials are matched to the torque and thermal demands of the MS2(X) motor family, helping keep leakage current and electromagnetic interference within the expected operating range. The cable is part of the Rexroth Cables product group, and its jacket, shielding, and core colors follow the format used across related Bosch Rexroth motion cables.