RKL4434 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4434 is a power cable from the RKL Motor Power Cables series with an operating voltage of 300/500 V and a PUR orange jacket. It features a conductor structure of 4x10.0 mm² plus additional wires, is halogen-free, and supports oil resistance to EN standards. The cable is suitable for use in drag chains, with a bending radius of 5 x D when fixed and 7.5 x D when flexible.
Internal Product Review
The RKL4434 is a Bosch Rexroth Indramat power cable designed specifically for motor applications, offering a PUR, halogen-free jacket in RAL 2003 (orange) for enhanced visibility and safety. With a sturdy conductor structure (4x10.0 mm² plus control pairs) and certified oil resistance, this cable is well-suited for demanding industrial environments. Reliable performance in drag chains and a flexible bending radius make it a dependable choice for dynamic machine applications.
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Product Description:
The RKL4434 is a power cable produced by Bosch Rexroth Indramat and supplied within the RKL Motor Power Cables series. It is intended for linking servo drives to motor terminals in automated machinery, carrying three-phase energy and auxiliary signals while tolerating continuous motion inside drag-chain assemblies and similar dynamic routing systems.
The cable can handle nominal line potentials up to 300/500 V, matching common low-voltage drive outputs. Its conductors follow a 4x10.0 mm² + (2x1.0) + (2x1.5) mm² layout, so three power cores, a protective conductor and paired signal leads share one jacket. DC loop losses are limited by a resistance of 1.91 Ω/km at 20 °C, which helps minimise thermal rise over long runs. A fixed routing radius of 5 × D keeps copper strands within allowable stress limits, while the external sheath uses the industrial warning shade RAL 2003 (orange) for clear circuit identification.
When repeatedly flexed, the design permits a bend of 7.5 × D without conductor fatigue, and the outer mantle is moulded from PUR that is adhesion-free and matt to reduce stick-slip inside guide channels. The insulation system is classified as Halogen-Free under VDE 0472-815, reducing corrosive gas release during fire events. Charge storage between cores is capped by a capacitance of 1.0 nF/m, supporting drive-side EMC filters. The sheath resists mineral and synthetic lubricants in compliance with EN 60811-2-1 and EN 50363-10-2, so the cable remains intact in oil-rich environments. Its structure is approved for continuous drag-chain travel, and the copper bundle endures conductor temperatures up to +90 °C when installed statically or +80 °C during cyclic motion, expanding application ranges in high-duty servo axes.
