RKL4350 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4350 is part of the RKL Motor Power Cables series and features a PUR cable jacket with a core configuration of 4x2.5 mm² plus 2x(2x1.0 mm²)StC. The cable supports up to 5,000,000 bending cycles, has an operating voltage of 300/500 V, and is halogen-free.
Internal Product Review
The RKL4350 is a robust motor power cable from the RKL series by Bosch Rexroth Indramat, featuring a durable PUR jacket and halogen-free construction for demanding environments. With a dynamic bending radius of 7.5xD and a rated life of 5,000,000 bending cycles, this cable excels in continuous flex applications. The RKL4350 stands out for its reliability and flexibility in industrial automation.
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Product Description:
The RKL4350 is a flexible motor power cable produced by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It serves as the pre-assembled link between an IndraDrive controller and a synchronous servo or spindle motor, carrying both phase power and control cores through a compact PUR sheath. Within an automation cell this single cable reduces panel wiring time and simplifies maintenance because the motor-side and controller-side connectors are already crimped and sealed at the factory.
For moving-axis installations the cable is rated for 5,000,000 flex cycles, so it tolerates continuous drag-chain motion without conductor fatigue. The conductors are manufactured from the INK0602 bulk cable, which combines fine-strand copper with a PUR jacket that resists cutting oils and weld spatter. A factory-installed RLS0722 plug mates directly to standard IndraDrive power terminals, streamlining cabinet assembly. During motion the jacket can bend down to a 7.5xD dynamic radius, allowing tight routing inside compact energy chains. Power conductors safely carry phase voltage up to 300/500 V, meeting IEC low-voltage rules for typical servomotor applications. The cable is halogen-free, so it will not release corrosive gases if exposed to flame in a cabinet fire.
Current distribution is handled by a 4x2.5 mm² + 2x(2x1.0 mm²)StC core set that separates motor phases from brake and temperature sensor pairs. A sealed RLS1207 plug is fitted at the motor end, providing IP-rated strain relief and keyed alignment to Rexroth MSK and MAD motors. The overall diameter of 14.8 mm lets the cable share standard chain cavities with feedback lines while maintaining the required 5xD static bend radius in fixed sections. Wire insulation is approved for 80 °C flexing and 90 °C fixed layouts, supporting continuous duty in high-temperature machine spaces.
