RKL4448 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4448 is a motor power cable from the RKL Motor Power Cables series with a PUR jacket in RAL 2003 orange. It has an outer diameter of 22.2 mm, a power wire cross-section of 10.0 mm², and can handle up to 5 million bending cycles. The cable operates in ambient temperatures from -30 to +40 °C when fixed and -20 to +40 °C when flexible.
Internal Product Review
The RKL4448 motor power cable from Bosch Rexroth Indramat features a durable PUR jacket in RAL 2003 orange and is engineered for high flexibility with a dynamic bending radius of 7.5xD and 5 million bending cycles. This cable maintains reliable performance across a wide ambient temperature range of -30 to +40 °C, making it suitable for demanding industrial environments. Overall, it stands out for robust design and long service life in dynamic applications.
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Product Description:
The RKL4448 motor power cable is produced by Bosch Rexroth Indramat and belongs to the RKL Motor Power Cables series. As a dedicated power lead for servo motors, it carries three-phase energy from the inverter to the machine axis while remaining flexible enough for routing inside cable tracks in automated plants. Its materials are selected to handle constant motion, temperature changes, and the electrical loads commonly encountered in industrial automation.
A key dimensional feature is its outer diameter of 22.2 mm, which determines gland and drag-chain channel sizing. Inside the sheath, copper conductors provide a power wire cross section of 10.0 mm², supporting the current required by medium-frame motors while limiting voltage drop. Their resistance at 20 °C is rated at 1.91 Ω/km, allowing line losses to be calculated for long cable runs. For dynamic layouts, the cable withstands a minimum bending radius of 7.5 × D during motion and 5 × D when installed in a fixed position, allowing tight loops without damaging the insulation. Mechanical endurance reaches 5 million bending cycles, making the cable suitable for continuous-duty gantries and pick-and-place modules. The fixed-installation temperature range extends from -30 °C to +40 °C, while moving applications are permitted from -20 °C to +40 °C.
During acceleration peaks of up to 10 m/s², the cable retains its structural integrity because of its abrasion-resistant sheath. The sheath is molded from PUR, a matte, adhesion-free compound that minimizes friction inside energy chains and resists oils and coolants. Electrical performance is supported by a discharge capacity of 1.0 nF/m, which keeps capacitive loading on the inverter within calculable limits during fast switching. A bright RAL 2003 orange jacket improves visibility in routing trays and makes the cable easier to distinguish from surrounding wiring. Storage is permitted at temperatures as low as -30 °C, allowing assembled harnesses to remain in unheated warehouses without material degradation.
