RLB2-063JEB by Bosch Rexroth Indramat

The RLB2-063JEB cable is produced by Bosch Rexroth Indramat as part of the RLB Motor Power Cables series. This basic design power cable transmits line voltage from a ctrlX DRIVE inverter to a synchronous servo motor in automated machinery. It is intended for the main power path between the drive and the motor, rather than for position feedback or auxiliary signaling. Its construction suits installations that require continual flexing without interrupting power delivery to the attached rotary axis.

The mechanical endurance of the RLB2-063JEB is rated for 5,000,000 bending cycles, which indicates how many dynamic strokes the conductors can tolerate before insulation fatigue is expected. During motion, the cable must follow machine carriers at a minimum dynamic bend radius of 7.5 x D, because maintaining that curvature helps prevent conductor strand migration during repeated movement. The power conductors use a cross-section of 16 mm², which supports the current required by medium-frame motors while limiting resistive loss. At the motor end, an M58 connector mates directly with the housing feed-through, which removes the need for field terminations. In fixed routing, the copper strands may reach a conductor temperature of 90 °C, while the dynamic-duty limit remains lower for continuous motion.

For temperature compatibility, the cable remains flexible down to -30 °C and functions continuously up to 80 °C, covering the operating window expected on factory floors. In static installations, the permitted bend radius relaxes to 5 x D, so extra length can be routed inside cable ducts without adding unnecessary strain. The cable is intended for the MS2(X) motor range, and its electrical characteristics are matched to the associated drive system for stable power transmission and consistent shielding behavior. It can be used in moving machine sections as well as fixed cabinet-to-axis runs.