RKL4557 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat RKL4557 is part of the RKL Motor Power Cables series and features a total shield with a PUR jacket in orange. This cable has a nominal outer diameter of 17.0 mm and supports up to 5,000,000 bending cycles. It uses 4x4.0 mm² power conductor cross-section and 2x1.0 plus 2x1.5 mm² control conductors.
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Product Description:
The RKL4557 power cable is produced by Bosch Rexroth Indramat within the RKL Motor Power Cables series. It serves as the fixed wiring that links an IndraDrive or comparable servo inverter to the motor terminals in automated machinery, carrying the three-phase supply and auxiliary signals needed for coordinated motion. The design targets dynamic applications such as handling robots and gantry axes where continuous bending and electrical robustness are required.
Mechanically, the cable endures up to 5,000,000 flexing cycles in energy-chain layouts, a figure that supports long service life in constantly moving carriers. The conductor bundle follows the INK0603 bulk cable specification and combines a power quad and paired controls. Two control pairs sized 2x1.0 + 2x1.5 mm² allow temperature sensor or brake lines to run inside the same sheath, while four power cores of 4x4.0 mm² handle the main motor current. Despite this conductor content, the overall diameter remains only 17.0 mm, so routing through narrow drag-chain compartments is still possible.
Thermally and chemically, the jacket is colored Orange (RAL 2003) to comply with drive-system wiring conventions and is extruded from PUR, giving abrasion resistance and coolant endurance. Continuous conductor operation is permitted up to 80 C; this ceiling aligns with the thermal class of typical servo connectors and prevents insulation embrittlement. A Total Shield of tinned copper braid surrounds the core assembly, limiting electromagnetic emissions and improving immunity to inverter-generated noise. Together, these characteristics let the cable maintain signal integrity and mechanical reliability inside high-speed packaging lines and multi-axis transfer stations.
Frequently Asked Questions about RKL4557:
Q: How many bending cycles is the RKL4557 cable rated for before wear?
A: The RKL4557 motor power cable can withstand up to 5,000,000 bending cycles.
Q: What is the jacket material on the RKL4557 power cable made from?
A: The RKL4557 features a PUR jacket for enhanced abrasion and chemical resistance.
Q: Does the RKL4557 cable have shielding against electrical noise?
A: This model includes a total shield to provide effective electromagnetic interference protection.
Q: What is the cross-section size of the power conductors in the RKL4557 cable?
A: The RKL4557 uses power conductors with a cross-section of 4x4.0 mm².
Q: What is the highest conductor temperature allowed for the RKL4557 motor cable?
A: The maximum operating temperature for the cable’s conductors is 80°C.
