RKL4347 by Bosch Rexroth Indramat

The RKL4347 is a motor power cable manufactured by Bosch Rexroth Indramat and supplied within the RKL Motor Power Cables series. It is a preassembled cable that links Rexroth servo drives to synchronous motors in automated machinery, carrying three-phase power while maintaining shielding for low-noise environments. Because it is terminated at both ends, the assembly reduces wiring work inside moving axes on gantry robots, pick-and-place modules, and other dynamic handling units. This format also helps keep routing consistent where repeated motion and compact cable management are required.

This cable is rated for 5,000,000 flexing cycles, allowing continuous motion in cable chains without excessive conductor fatigue. Its flex life is supported by a 7.5 x D dynamic bending radius, so the jacket can articulate without kinking when the carrier radius is selected correctly. Rexroth lists the product under the Basic model level and the Ready-Made type, showing that it is supplied as a standard preassembled cable assembly. In service, it can operate at temperatures up to 80 °C, which suits the internal heat conditions commonly found around drive equipment and enclosed machine sections.

When the machine is not moving, the cable may remain in a fixed run that requires only a 5 x D static bending radius, which helps limit strain between mounting points. Cold-start operation is possible down to -30 °C, allowing use in areas near loading bays or other unheated spaces without cracking the insulation. The motor-side connector is the factory-crimped RLS1108 plug, while the drive-side connection uses the keyed RLS1109 plug. The storage temperature range matches the transport range, so assembled cable lengths can be stored or shipped under the same thermal limits without changing their intended use.