RKL4503 Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
MPN:
The Bosch Rexroth Indramat RKL4503 is part of the RKL Motor Power Cables series and supports up to 5,000,000 bending cycles for drag chain use. The cable features 3 power conductors plus PE and 4 control conductors, with a PUR jacket in RAL 2003 orange and an outer diameter of 14.8 mm.
Internal Product Review
The RKL4503 motor power cable from Bosch Rexroth Indramat features a heavy PUR jacket in RAL 2003 orange, specifically engineered for drag chain applications. It offers 5,000,000 bending cycles and a flexible minimum bending radius, making it highly reliable for dynamic industrial environments. This model stands out for its durability and consistent electrical performance.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The RKL4503 motor power cable is produced by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It serves as a flexible link that transmits three-phase power and auxiliary control signals between Indramat servo drives and compatible motors in automated production lines. The cable is designed for continuous-motion applications where space constraints and frequent movement require a compact diameter, low electrical losses, and a long service life inside machine carriers and drag chains.
The cable has a typical capacitance of 0.7 nF/m, which influences the reactive load seen by the inverter at high switching frequencies. DC losses are limited by a conductor resistance of 7.98 Ω/km measured at 20 °C, allowing accurate motor torque delivery over long cable runs. Each phase uses a copper conductor with a cross-sectional area of 2.5 mm² to carry continuous motor current without overheating. The cable has an overall diameter of 14.8 mm, allowing it to fit within densely populated carrier tracks. Its mechanical service life is rated for 5,000,000 bending cycles, supporting frequent movement in robotic and gantry applications. Four separate control conductors with a cross-sectional area of 1.0 mm² are routed alongside the power conductors to carry brake-release or thermal-sensor signals. The cable is suitable for drag-chain installation.
The cable has a halogen-free, abrasion-resistant jacket made from PUR (adhesion-free, matte). Its surface slides smoothly inside cable chains and resists exposure to cutting fluids. The high-visibility RAL 2003 (orange) sheath makes the cable easier to identify within machinery. Installation in stationary conduits requires a minimum bend radius of 5 × D, while repetitive dynamic movement requires a minimum bend radius of 7.5 × D to reduce conductor fatigue. Internally, three power conductors and a protective earth conductor are arranged as 3 + PE. This power group is bundled separately from the four signal wires to minimize crosstalk and maintain electromagnetic compatibility during rapid acceleration cycles.
