ZK4540-0020-0100 Beckhoff
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The Beckhoff ZK4540-0020-0100 is a motor cable from the ZK Motor Cables series featuring a 10 meter length and a cable cross-section of 2 x 2 x 0.14 mm². It has an outer diameter of 5.4 mm, a jacket made of PUR, and a protection class of IP20. This cable supports a maximum operating voltage of 300 V and a rated impulse voltage of 2.5 kV.
Internal Product Review
The ZK4540-0020-0100 is a Beckhoff motor cable featuring a 9-pin to 5-pin connector face and a PUR jacket. A 300 V operating voltage with 85% shield coverage gives the assembly a clean, dependable profile for servo and feedback wiring. The 10 million cycle rating is the standout specification for long service life in dynamic motion systems.
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Product Description:
The ZK4540-0020-0100 is a preassembled motor feedback cable produced by Beckhoff within the ZK Motor Cables series. The assembly routes power and encoder signals between a drive and a servo motor in an automation cell, allowing rapid installation while maintaining consistent electrical characteristics required for synchronous motion control. It is intended for drag-chain installations where dynamic bending, torsion, and high cycle counts are expected on gantry axes, pick-and-place units, and other continually moving machinery.
The conductor set uses a cross section of 2 x 2 x 0.14 mm², so two individually twisted signal pairs are available for differential transmission and noise cancellation. Its prefabricated length of 10.0 m supports controller-to-motor distances typical of medium-size machines without intermediate junctions. At each end, the cable terminates in a 9-pin to 5-pin connector arrangement that matches Beckhoff servo drives to AM8000 motors and removes field crimping errors. The insulation system withstands a continuous potential of 300 V, which is suitable for low-voltage motor encoder circuits. For dynamic carriers, the PUR jacket allows travel velocities up to 4 m/s and accelerations reaching 30 m/s². The cable also has a PUR outer sheath, a 5.4 mm overall diameter that fits standard energy-chain separators, a maximum contact resistance of 5 mΩ at the plug interface, and 85% shielding to minimize EMI. The B-side connector endures 25 mating cycles, and the copper cores tolerate torsion of ±30° per meter during operation.
The mechanical service life is rated for 10 million bend cycles, provided the cable curvature never falls below the minimum bend radius of 38 mm required by the fine-strand conductors. Impulse events on the drive line are tolerated up to 2.5 kV without breakdown. The assembly has IP20 protection, so it should be installed inside enclosures rather than in exposed wet areas.
