RKL0028 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL0028 is a motor power cable from the RKL Motor Power Cables series. It has a cable make-up of 4x1.5 plus 2x(2x0.75) mm² and a cable outer diameter of 12.2 mm. The cable features a PUR jacket in orange, supports up to 600 V AC, and offers a conductor resistance of 13.3 Ω/km.
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Product Description:
The RKL0028 is a motor power cable from Bosch Rexroth Indramat that belongs to the RKL Motor Power Cables series. Designed to connect servo drives to synchronous motors in industrial automation, the cable carries three-phase power and auxiliary signals without requiring separate harnesses. Its construction supports continuous machine duty cycles and allows installation in both fixed routing trays and moving cable chains, linking motion axes to cabinet-mounted inverters while maintaining electromagnetic compatibility and mechanical integrity inside automated equipment.
During installation, the minimum bending radius is 5 × D for static routing and increases to 7.5 × D when the cable is guided through dynamic drag-chain systems, helping prevent conductor fatigue. The core set follows a 4×1.5 + 2×(2×0.75) mm² layout, so four 1.5 mm² conductors carry motor phase current while two paired 0.75 mm² twisted pairs handle brake or sensor lines. The overall diameter is 12.2 mm, enabling the use of compact cable glands in crowded control panels. The conductors have a DC loop resistance of 13.3 Ω/km, limiting voltage drop over long travel axes. The cable has a mutual capacitance of 0.8 nF/m, which helps keep drive-switching edges within acceptable dV/dt limits.
The outer sheath has a standard RAL 2003 orange color for easy recognition, and its adhesion-free, matte PUR compound resists mineral oils and welding sparks. The insulation system supports continuous operation at 600 V AC, making it suitable for motor power transmission in industrial servo systems. When permanently fixed, the conductor insulation can withstand temperatures up to 90 °C. During flexible operation, the conductor temperature is limited to 80 °C to support extended service in moving cable chains. These operating limits support the cable’s use with compact servo motors in high-cycle packaging lines and material-handling gantries.
