RLB2-062GDB by Bosch Rexroth Indramat

The RLB2-062GDB cable is a power lead manufactured by Bosch Rexroth Indramat and supplied within the RLB Motor Power Cables series. It serves as the dedicated motor supply link between an MS2 synchronous motor and a matched drive so that three-phase power and auxiliary conductors reach the machine without additional junctions. In industrial automation, this type of cable simplifies installation, maintains shielding continuity, and helps dynamic axes receive consistent voltage during motion. It also reduces the number of connection points along the motor power path, which helps preserve electrical continuity on moving equipment. The assembly is intended for repeated machine motion where reliable power delivery and cable flexibility matter.

The cable is rated for 5 million bending cycles, indicating how many flex motions it can endure before conductor fatigue becomes critical. During movement, the minimum dynamic loop is limited to a radius of 7.5 × D, and keeping the bend above this value helps prevent insulation cracks when the carrier accelerates. Current-carrying capacity is supported by a conductor cross section of 6 mm², which allows standard servo currents while controlling resistive loss. Inside the jacket, the conductor set follows the pattern 4 x L + 4 x 1.0 mm² + 2 x 1.5 mm²; the larger cores supply phase power, while the smaller conductors serve brake and sensor circuits. A factory-installed M58 Power Connector terminates the motor side so the cable can plug directly into the machine without field crimping.

For fixed routing inside a cabinet, the static bend may be tightened to 5 × D, which helps conserve enclosure space while staying within insulation limits. Because the lead is furnished for direct connection, no intermediate terminal strip is required, which reduces contact resistance and shortens the electrical path. On the drive end, the cable mates with the ctrlX DRIVE controller family, and compatibility with the MS2(X) motor series allows the same cable type to be used across several motor arrangements. This keeps wiring orderly in modular axis layouts where cable routing must remain compact and predictable.