RKL0029 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL0029 is part of the RKL Motor Power Cables series and features a conductor makeup of 4x1.5 mm² plus 2x(2x0.75 mm²). This power cable has a nominal outer diameter of 12.2 mm, a jacket made from orange PUR, and is rated for 300/500 V with a maximum wire temperature of 90°C when fixed.
Internal Product Review
The RKL0029 is a Bosch Rexroth Indramat motor power cable designed for high-flexibility applications, offering up to 5,000,000 bending cycles. The PUR jacket is both adhesion-free and matt, providing durability and resistance to industrial environments. With its robust construction and reliable voltage ratings, this cable delivers consistent performance for demanding motion control systems.
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Product Description:
The RKL0029 motor power cable is manufactured by Bosch Rexroth Indramat within the RKL Motor Power Cables series. Designed to link synchronous or induction motors with their drives, it carries both motor power and auxiliary control cores in one jacket, simplifying routing in automated production cells, gantries, and handling modules. By combining mechanical flexibility with electrical insulation that meets industrial standards, the cable enables reliable energy transfer in dynamic motion applications.
During continuous drag-chain operation, the cable is rated for 5,000,000 bending cycles, so it can be used on high-stroke linear axes without premature conductor fatigue. A typical line-to-line capacitance of 0.8 nF/m keeps reactive current low, allowing servo drives to maintain accurate current control over long runs. The copper bundle follows a mixed-core layout of 4x1.5 mm² + 2x(2x0.75 mm²); the four larger cores carry phase current, while the paired twisted shields support temperature or brake signals. With a compact outer diameter of 12.2 mm, the cable requires minimal space in cable trays. The power cores are insulated for up to 300/500 V, matching the voltage class of most 230 VAC and 400 VAC motor installations.
Electrical losses are limited by a loop resistance of 13.3 Ω/km at 20 °C, aiding voltage stability when drives are mounted far from moving carriages. The jacket uses PUR (adhesion-free, matte) to resist oils and welding spatter while allowing quick separation from neighboring cables. For static runs, the cable can reach +90 °C, and it remains serviceable up to +80 °C under continuous motion. The minimum installation curvature is 5 × D when fixed and 7.5 × D when flexed, permitting tight cabinet routing without exceeding stress limits. The jacket is RAL 2003 orange for quick identification, and a 300/300 V rating on the control pairs isolates feedback lines from the energized phases.
