Product Description:

The RKL4550 belongs to the RKL Motor Power Cables series produced by Bosch Rexroth Indramat. It is a factory-terminated power lead intended to link compatible Indramat servo drives to matching motors in automated machinery. Within an installation, it carries three-phase power while tolerating continuous motion in cable tracks, so it supports reliable energy transfer in pick-and-place systems, gantries, and other dynamic axes. That focus makes it suitable for moving axis applications that require consistent power delivery during repeated travel.

The cable is rated for 5 million flexing cycles, indicating how many bends it can withstand before conductor fatigue becomes critical. During motion, the minimum loop is governed by a dynamic bending radius of 7.5 × D, so cable chains must be sized to avoid excessive stress on the insulation. Once the cable is secured in a stationary route, the bend radius may be reduced to 5 × D without damaging the copper strands. Motor-side termination uses a Plug Connector RLS0722, which provides a keyed connection and maintains shielding continuity. Reliable service in cold environments is supported by a minimum operating temperature of -30 °C, which helps the jacket remain flexible during movement.

Continuous operation is allowed up to 80 °C, so the cable can remain in service where elevated cabinet or machine temperatures are present. Drive-side conductors use ferrules and ring terminal ends, allowing direct connection to terminal blocks or stud posts without additional crimping. Because the cable is supplied as a ready-made assembly, the power terminations are already attached and prepared for installation. The basic model designation indicates that no brake wires or feedback pairs are included. This layout is intended for applications where motor power is routed separately from control and feedback circuits.