RKL4703 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4703 is part of the RKL Motor Power Cables series and has a cable diameter of 12.2 mm with a PUR jacket material. This cable supports 5 million bending cycles, features a control wire cross-section of 0.75 mm², and a power wire cross-section of 1.5 mm². It operates at 300/300 V for control and 300/500 V for power applications.
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Product Description:
The RKL4703 cable is a motor power cable manufactured by Bosch Rexroth Indramat and supplied within the RKL Motor Power Cables series. The assembly links drive controllers to servomotors, delivering three-phase power and auxiliary control conductors in a single flexible bundle. In machine tools, handling units, and packaging stations it streamlines wiring, supports plug-and-play exchange, and preserves signal integrity under continuous motion. Its construction follows the mechanical requirements found in drive systems that move along linear slides or articulated joints where consistent bending performance is mandatory.
The conductor set is drawn from the bulk reference INK0650, giving a nominal outer diameter of 12.2 mm. Three power cores each sized at 1.5 mm² carry the main phase current, while a separate protective conductor is co-laid within the same sheath. When installed in a drag chain the cable tolerates a dynamic loop with a radius of 7.5 x D, and it sustains this movement for five million bending cycles without insulation cracks. The outer jacket resists coolants and weld spatter and contains low-adhesion additives for smooth gliding. Power conductors are rated for up to 300/500 V so standard 230 V or 400 V inverter outputs are accommodated.
At the cable ends, a crimped female contact set mates with the motor side connector RLK1201, while a coded male back shell interfaces with the controller through RLS0722. Two control cores with a cross-section of 0.75 mm² are embedded between the power groups and operate at the control potential of 300/300 V for temperature sensor or brake release signaling. The static installation radius is limited to 5 × D, allowing tight cabinet routing when motion is not required. A halogen-free, abrasion-resistant sheath made of PUR seals the bundle against oil ingress and supports plant wash-down procedures.
Frequently Asked Questions about RKL4703:
Q: What is the bending cycle rating for the RKL4703 motor power cable?
A: This cable features a bending cycle rating of 5 million cycles, supporting high-durability flexing applications.
Q: What is the cable diameter of the Bosch Rexroth Indramat RKL4703?
A: The cable is designed with a diameter of 12.2 mm, allowing easy installation and routing in cable chains.
Q: What is the operating voltage for power wires on the RKL4703 cable?
A: The operating voltage for power wires is specified at 300/500 V for safe and consistent power delivery.
Q: What material is used for the outer jacket of the RKL4703 cable?
A: The outer jacket is made of PUR for enhanced abrasion resistance and long-term durability.
Q: What is the dynamic bending radius specification for the RKL4703 cable?
A: The dynamic bending radius is 7.5 times the cable diameter, supporting flexibility in moving applications.
