RKL4523 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4523 is part of the RKL Motor Power Cables series and features a cable diameter of 18.5 mm with a PUR adhesion-free, matt jacket material. Designed with a core configuration of 4x6.0 plus control wires, this cable has a power and control wire operating voltage of 600 V AC. It offers a bending radius of 5 times the diameter when fixed and 7.5 times the diameter when flexible, with a maximum in
Internal Product Review
The RKL4523 is a robust motor power cable from the RKL series by Bosch Rexroth Indramat, featuring a PUR jacket that is both adhesion-free and durable. With a core configuration of 4x6.0+(2x1.0)StC+(2x1.5)StC mm² and rated for 600 V AC, this cable supports demanding industrial motor connections. Its flexible bending radius and solid temperature ratings contribute to reliable long-term operation in dynamic environments.
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Product Description:
Bosch Rexroth Indramat’s RKL4523 is a combined motor power and control cable offered in the RKL Motor Power Cables series. The assembly links drive controllers to moving or stationary motors, carrying three-phase power along with low-level control lines in one compact package. In automated production cells, this type of hybrid cable simplifies routing, shortens installation time, and supports EMC compliance because the shields and drain wires are integrated. Typical applications include pick-and-place robots, linear gantries, packaging formers, and conveyor sections that require synchronized speed control.
The minimum static bend radius is 5 × D; during continuous motion, the radius must increase to 7.5 × D so the copper strands remain within their elastic strain limit. An outer diameter of 18.5 mm guides the selection of drag-chain separators, cable glands, and support trays. With a conductor resistance of 3.30 Ω/km at 20 °C, voltage loss stays low across standard machine lengths. The control pairs use insulation rated for 600 V AC, allowing direct termination on drive I/O without supplementary isolation. Braid and foil shields help suppress crosstalk between power and control conductors.
The power conductors and auxiliary pairs use a layered arrangement of 4x6.0+(2x1.0)StC+(2x1.5)StC mm², providing 6 mm² cores for the motor phases and screened 1 mm² and 1.5 mm² pairs for feedback or brake connections. A durable PUR (adhesion-free, matte) outer jacket resists oils, weld spatter, and abrasion from cable chains while sliding smoothly through polymer guides. In fixed routing, the cable supports a conductor temperature of up to +90 °C, whereas the conductor temperature in dynamic cable tracks is limited to +80 °C. These temperature limits allow the cable to be routed according to the motion requirements and thermal conditions of the application.
