RKL4707 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4707 belongs to the RKL Motor Power Cables series and has a power conductor cross-section of 4.0 mm². It features a PUR jacket, can handle up to 5,000,000 bending cycles, and has a nominal diameter of 17.0 mm. The cable is equipped with an RLK1201 motor-side connector and an RLS0721/K04 controller-side connector.
Internal Product Review
The RKL4707 motor power cable from Bosch Rexroth Indramat features a robust PUR jacket and is designed for 5,000,000 dynamic bending cycles. The cable is equipped with RLS0721/K04 and RLK1201 connectors, ensuring secure connections at both controller and motor ends. This cable is ideal for demanding motion applications where long flex-life is required.
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Product Description:
The RKL4707 is a shielded motor power cable produced by Bosch Rexroth Indramat for the RKL Motor Power Cables series. It links an IndraDrive controller to a synchronous motor, carrying three-phase power and auxiliary signals used in automated assembly lines, packaging machines, and general motion systems. By matching the mechanical interface on the drive side with the electrical layout on the motor side, the cable forms a ready-made harness that simplifies installation in drag chains and fixed cable trays.
The power circuit is routed through three main cores, each with a cross-sectional area of 4.0 mm², allowing the cable to deliver rated motor current without excessive voltage drop over typical machine lengths. Two conductors for temperature or brake monitoring each have a cross-sectional area of 1.0 mm², while another pair for the auxiliary supply uses conductors with a cross-sectional area of 1.5 mm². With an overall diameter of 17.0 mm, the assembly fits standard cable glands and conduit fittings commonly used in control cabinets. The outer sheath is molded from PUR, which provides resistance to cutting oils and low friction as the cable moves in energy chains. The controller end has an RLS0721/K04 connector, while the motor end has an RLK1201 connector, eliminating the need for field crimping and providing pin compatibility with standard Rexroth drive hardware.
The cable has a rated service life of 5,000,000 flex cycles, making it suitable for high-duty linear robots and gantries that require repetitive movement. During motion, movable installations must maintain a minimum bend radius of 7.5 × D, whereas fixed routing permits a tighter bend radius of 5 × D without placing excessive stress on the cores. The distributed capacitance is rated at 0.8 nF/m, limiting the reactive current that could otherwise load the drive output stage during long cable runs. The shielding helps protect the power and auxiliary circuits from electromagnetic interference in industrial environments.
