Product Description:

The RL2-146KBB motor power cable is manufactured by Bosch Rexroth Indramat as part of the RL2 Motor Power Cables series. It is intended to connect a second-generation Rexroth servo motor directly to its corresponding drive, transmitting mains power through four power cores and control signals through paired auxiliaries inside a single assembly.

The cable follows a Basic design and integrates a conductor set of 4x25 mm²+2x(2x1.5 mm²). Each power core shares a cross-sectional area of 25.0 mm², allowing continuous current at industrial duty levels while limiting resistive heating. Power insulation is rated to 600/1000 V, so the assembly supports common 400 V and 480 V motor buses with headroom for transients. The paired signal conductors use a separate insulation class and operate at 90 °C maximum when the cable is installed in a fixed routing path; under flexible motion that limit shifts to 80 °C to prevent insulation fatigue. A C (M50) terminal-box connector is fitted on the motor end, enabling direct connection without intermediate junctions or adapters.

A dynamic bending radius of 7.5xD defines the minimum loop size during continuous cable tracking, whereas the static radius of 5xD applies to fixed routing inside a cabinet or cable tray. The PUR outer jacket in PUR (Orange RAL 2003) resists oil, abrasion and weld spatter, and encloses an overall diameter of 29.8 mm. Leakage capacitance is 0.6 nF/m, which helps the drive’s output filter meet EMC limits by keeping differential-mode currents low. Signal insulation is tested to 450/750 V so brake-release or temperature sensors can share the same sheath as the power cores. The Rexroth Cable product group assigns this model to applications requiring robust drag-chain performance, and the direct motor-drive connection minimises installation time on second-generation servo axes.