RKL4488 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4488 is part of the RKL Motor Power Cables series, designed with four power conductors for three-phase plus PE and four control wires. It features a PUR jacket in orange, supports up to 5,000,000 bending cycles, and has a gland thread size of M32 x 1.5. The cable is rated for a maximum conductor temperature of 90°C when fixed and uses a RLS0723 (K10) controller connector.
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Product Description:
The RKL4488 motor power cable is supplied by Bosch Rexroth Indramat within the RKL Motor Power Cables series. Designed for servo drive installations, it connects the power terminals of an Indramat controller to the stator terminals of a synchronous motor. In automated cells, the cable transmits motor power while shielding auxiliary control cores, allowing coordinated motion without separate harnesses. Its oil-resistant insulation and flexible conductors support routing through cable chains and gantry axes that experience continuous movement in assembly lines, packaging machines, and pick-and-place robots.
Each of the four power cores has a 10.0 mm² copper cross section, providing low resistance for high-current servo duty. The cable contains four power conductors for three phases and protective earth, so no external grounding strap is required. At the drive end, an RLS0723 (K10) keyed plug mates directly with IndraDrive power modules, helping prevent an incorrect connection. For cabinet entry, the molded strain relief terminates in an M32 × 1.5 metric thread, enabling direct installation with compatible cable glands. The outer sheath is made from PUR, which resists abrasion and coolant exposure during operation on machinery that requires frequent cleaning.
The cable is rated for 5,000,000 chain cycles, allowing it to withstand repetitive flexing in high-speed axes without premature conductor fatigue. Flexible installations permit a minimum routing radius of 7.5 × D, reducing mechanical stress while accommodating confined machine enclosures. In a stationary installation under continuous current, the copper conductors can operate at temperatures up to +90 °C; a lower temperature limit applies when the cable is moving. The sheath is orange (RAL 2003), providing clear visibility for energized motor circuits inside cabinets and along robotic equipment. This color also helps personnel distinguish the cable from signal and communication wiring during inspection or maintenance. Proper clamping and strain relief help prevent excessive tension from reaching the plug or internal conductors as the cable moves through a carrier.
