RKL4547 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4547 is part of the RKL Motor Power Cables series and features a PUR jacket with a cable outer diameter of 29.8 mm. It is built with four power conductors of 25.0 mm² cross-section and four control wires of 1.5 mm² cross-section, rated for voltages of 300/500 V and 300/300 V respectively. The cable can withstand 5,000,000 bending cycles in a drag chain.
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Product Description:
The RKL4547 motor power cable is manufactured by Bosch Rexroth Indramat for the RKL Motor Power Cables series. The assembly is intended for dynamic servo axes, routing the main three-phase supply and low-level control cores between an IndraDrive inverter and a compact terminal box on the motor housing. Its integrated design replaces separate power and signal runs, reducing wiring volume inside control cabinets and machine drag chains. The cable supports repetitive motion in industrial automation equipment such as pick-and-place gantries, palletizers, and packaging stations.
For continuous-flex applications, the RKL4547 is rated for 5,000,000 bending cycles when installed with an appropriate drag-chain radius. The composite bundle measures 29.8 mm in outer diameter, allowing straightforward sizing of gland plates and energy tracks. Four power conductors, each with a cross-sectional area of 25.0 mm², transmit high current to the stator windings while limiting resistive loss. A separate quartet of control cores carries encoder supply and brake release signals, and each conductor has a cross-sectional area of 1.5 mm² to accommodate typical sensor loads. All elements are enclosed in a PUR outer jacket that offers abrasion resistance, oil tolerance, and low friction against carrier separators.
The drive phase lines have an insulation rating of 300/500 V, whereas the auxiliary control cores have a rating of 300/300 V for lower-voltage circuits. The cable exits the motor through a metal terminal box that accepts an M40 × 1.5 threaded fitting, providing strain relief and environmental sealing. In a fixed installation, the conductor insulation supports continuous operation at temperatures up to 90 °C. During flexing motion, the allowable temperature is reduced to 80 °C to account for mechanical movement and heat buildup.
