RKL4422 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4422 is part of the RKL Motor Power Cables series and features a PUR matte jacket in RAL 2003 orange. It supports drag chain use and has a power wire cross-section of 4.0 mm² with an outer diameter of 17.0 mm. The cable offers a capacitance of 0.8 nF per meter and a conductor resistance of 4.95 ohms per kilometer.
Internal Product Review
The RKL4422 motor power cable from Bosch Rexroth Indramat features a PUR matte jacket in RAL 2003 orange, ensuring high visibility and durability in industrial environments. With a capacitance of 0.8 nF/m and a conductor resistance of 4.95 Ω/km, this cable offers efficient electrical performance for demanding drive applications. Compatibility with drag chain systems further highlights its industrial reliability.
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Product Description:
The RKL4422 motor power cable is supplied by Bosch Rexroth Indramat as part of the RKL Motor Power Cables series. Designed for low-voltage servo systems, the cable delivers three-phase power and auxiliary control signals between drive controllers and synchronous motors in automated machinery. Its construction follows the mechanical and electrical requirements typical of dynamic routing bays, so it fits cabinet wiring as well as moving cable chains on gantry, pick-and-place, and packaging axes.
Its three core conductors each have a cross-section of 4.0 mm², providing the current-carrying capacity required by mid-frame motors. Integrated signal pairs specified as 2×1.0 mm² + 2×1.5 mm² allow temperature or brake monitoring to share the same sheath, reducing installation complexity. Line-to-line capacitance is limited to 0.8 nF/m, which minimises reactive current when the cable is driven by high-frequency pulse-width-modulated inverters. The copper path exhibits a dc resistance of 4.95 Ω/km, keeping voltage drop small over typical machine lengths. A total outer diameter of 17.0 mm assists in meeting fill-factor rules inside energy chains while still accommodating the required insulation and shielding layers.
The sheath is made from PUR (matte), a thermoset compound that resists cutting oils and repetitive torsion, and it is tinted RAL 2003 (Orange) to comply with European conventions for live power circuits. Continuous dynamic movement is supported; the cable is certified for drag-chain use and can be laid statically with a minimum bend radius of 5 × D or flexed in motion down to 7.5 × D. These mechanical limits, together with the abrasion-proof jacket and dense braid shield, let the cable maintain electrical integrity where hundreds of thousands of cycles are expected on linear slides and articulated robot axes.
