RKL4554 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4554 belongs to the RKL Motor Power Cables series and has a cable diameter of 17.0 mm with a total of 8 conductors. The power wire has a cross-section of 4.0 mm² and is rated for 300/500 V, while the control wire voltage is 300 V. This cable uses a PUR jacket in orange and is suitable for drag chain applications, with minimum bend radii of 5×D when fixed and 7.5×D when flexible.
Internal Product Review
The RKL4554 is a Bosch Rexroth Indramat motor power cable designed for robust industrial applications, featuring 8 total conductors and a 4.0 mm² power wire cross-section. Its PUR jacket is adhesion-free and durable, with drag chain suitability for demanding, dynamic environments. The cable offers excellent flexibility and long-term reliability.
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Product Description:
The RKL4554 is a motor power cable produced by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It links servo drives to synchronous motors, transferring three-phase power along with auxiliary control signals so automated axes receive both energy and low-level signals through one routed assembly. By combining power and control conductors inside a polyurethane jacket, the cable simplifies wiring in gantries, packaging lines, and other motion platforms where compact routing and electrical integrity are required.
This model has a nominal outer diameter of 17.0 mm, providing space for shielded power cores and separate control pairs while still fitting standard gland plates. Each power core has a cross-sectional area of 4.0 mm², allowing the conductors to carry continuous current from compatible servo drives. The power cores have an insulation rating of 300/500 V. The auxiliary pairs are insulated for 300 V, keeping encoder or brake circuits separated from the higher-energy lines. A capacitance of 0.8 nF/m limits cable charging current, reducing the reactive load on high-frequency pulse-width modulation drives and minimizing heat rise at the inverter. Internal copper losses remain low because the conductors have a resistance of 4.95 Ω/km at 20 °C.
The cable includes an auxiliary conductor bundle of 2 × 1.0 mm² + 2 × 1.5 mm² for low-current control functions. During continuous movement in cable carriers, the assembly supports a minimum dynamic bending radius of 7.5 × D. For permanent installation in trays, the minimum static bending radius is 5 × D. A matte PUR sheath resists oil and weld spatter, while the bright orange RAL 2003 jacket makes the cable easier to trace inside enclosures. The cable is suitable for drag-chain operation and contains eight numbered conductors, allowing organized electrical installation without additional sleeves or separators.
