RKL4322 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4322 is a power cable from the RKL Motor Power Cables series, featuring a conductor composition of 4x4.0 mm², 2x1.0 mm², and 2x1.5 mm². It has a maximum operating voltage of 600 V AC, supports up to 5 million bending cycles, and uses a PUR jacket in RAL 2003 orange. The cable is designed for a maximum acceleration of 10 m/s² and travel velocity up to 5 m/s.
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Product Description:
The RKL4322 is a motor power cable manufactured by Bosch Rexroth Indramat within the RKL Motor Power Cables series. Designed for dynamic machine axes, it links drive amplifiers to synchronous motors while tolerating continuous motion inside cable carriers. Its role in industrial automation is to provide reliable three-phase power and auxiliary conductors so that servo systems maintain torque, feedback, and protective earth continuity even under high cycle counts. It is supplied pre-assembled with RLS1301/C04 and RLS0721/K04 connectors, streamlining cabinet and motor terminations.
Mechanically, the assembly is rated for 5,000,000 flex cycles, showing suitability for long-life energy chains. A minimum fixed bend radius of 5 x D and a dynamic radius of 7.5 x D restrict installation curvature to preserve conductor geometry. The four 4.0 mm² power cores, two 1.0 mm² temperature leads, and two 1.5 mm² protective cores form the stated conductor composition, and the bundled copper network presents a resistance of 4.95 Ω/km at 20 °C, limiting I²R losses along extended runs. Electrically, the cable handles up to 600 V AC between phases, enabling connection to standard IndraDrive outputs. Both factory-mounted connectors lock with bayonet mechanisms, ensuring shield continuity and rapid exchange during maintenance.
Dynamic motion capability is further defined by a permissible cable chain acceleration of 10 m/s² and a maximum travel speed of 5 m/s, figures that align with high-throughput pick-and-place gantries. The polyurethane jacket in RAL 2003 orange resists oil and abrasion while keeping surface friction low; the construction corresponds to bulk cable type INK0603. With a specific mass of 0.490 kg/m, routing calculations for suspended lengths and carrier fill are straightforward. The capacitance between power cores and shielding is 0.8 nF/m, a value that minimizes reactive current and eases drive filter design. These parameters result in stable power delivery without excessive heat even when machines operate around the clock.
