RKL4506 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4506 is part of the RKL Motor Power Cables series. It has a cable outer diameter of 17.0 mm and power conductors rated at 3 plus PE with a cross-section of 4.0 mm². This cable uses PUR jacket material and features controller and motor connection interfaces of RLS0722/K04 and RLK0004 respectively.
Internal Product Review
The RKL4506 is a durable motor power cable from Bosch Rexroth Indramat, featuring a PUR jacket and a bulk cable type of INK0603 for reliable use in industrial environments. With power conductors sized at 4.0 mm² and a conductor resistance of 4.95 Ohm/km at 20°C, this cable ensures efficient power delivery with minimal losses. Its combination of rugged build and low resistance makes it an excellent choice for demanding automation applications.
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Product Description:
The RKL4506 is a power cable manufactured by Bosch Rexroth Indramat as part of the RKL Motor Power Cables series. It links servo drives to synchronous motors in industrial automation, carrying both three-phase supply energy and low-level control signals in one composite line. By combining motor and feedback wiring in a single jacket, the cable reduces panel space and simplifies routing inside moving cable chains.
The conductors are produced from bulk cable type INK0603 and the finished assembly has a diameter of 17.0 mm, a dimension that determines the size of clamps or drag-chain channels. Copper resistance is rated at 4.95 Ohm/km at 20 °C, allowing length calculations so voltage drop stays within drive tolerances. Separate logic pairs inside the bundle provide cross-sections of 1.0 mm² for cores 5 and 6 and 1.5 mm² for cores 7 and 8, so the analogue and digital feedback lines meet drive current requirements without oversizing. A discharge capacity of 0.8 nF/m limits reactive load on the inverter’s output stage, helping to maintain waveform quality at high switching frequencies. Power is delivered through a 3 + PE (GNYE) arrangement, with each phase built on a 4.0 mm² cross-section to match the thermal rating of typical 6 A to 10 A servo axes. The cable terminates to the controller with an RLS0722/K04 connector and to the motor with an RLK0004 plug, ensuring keyed mating that prevents phase inversion.
Mechanical durability is provided by a PUR outer jacket that resists oils and continuous flexing in automated handling systems. For fixed routing the minimum bend radius is 5 x D, while dynamic applications must observe a tighter limit of 7.5 x D during reciprocating motion; these clearances stop conductor migration and extend service life when the cable cycles thousands of times per shift.
