ZK4701-0421-2030 Beckhoff
Wake Industrial LLC is not an authorized distributor of this product.
The Beckhoff ZK4701-0421-2030 is part of the ZK Motor Cables series and has a length of 3 meters with a PUR (polyurethane) jacket. This cable offers a power rated voltage of 630 V AC/DC and rated current of 14 A, with a fixed bend radius of 5 times the outer cable diameter.
Internal Product Review
The ZK4701-0421-2030 is a Beckhoff ZK motor cable with a PUR jacket and a bayonet locking method. Power handling is strong for servo installations, with a 14 A rated current and 630 V AC/DC rated voltage. High flex life up to 5 million cycles makes the cable a dependable choice for continuous-motion applications.
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Product Description:
The ZK4701-0421-2030 is a pre-assembled motor supply and feedback cable produced by Beckhoff within the ZK Motor Cables series. It links an AX or AM drive to its matched servo motor, carrying three-phase power, brake conductors, and differential signals in one route. In industrial automation, this type of hybrid cable shortens installation work and helps maintain electromagnetic compatibility between motion controllers and the devices they energize. By combining power, brake, and feedback paths in one assembly, it also reduces routing complexity in compact machine layouts where space for separate cable runs is limited.
At 3.00 m, the assembly covers typical panel-to-machine distances without excess slack. The power cores have a cross-section of 0.75 mm², supporting continuous transmission of three-phase energy while keeping the cable diameter low. These conductors handle impulse voltages up to 6.0 kV and operate at a steady 630 V AC/DC with a line current of 14 A. A 0.34 mm² brake pair and AWG22 signal leads share the same sheath, so motor power, brake release, and encoder feedback can be carried through one cable. The jacket is molded from PUR (polyurethane), providing abrasion resistance and allowing a dynamic tensile stress of 20 N/mm² during high-speed carriage movement. Connection integrity is maintained by a bayonet locking sleeve that endures 500 mating operations, and the contacts use crimp termination. The design follows Beckhoff pinout conventions, so no breakout is required at either end.
For continuously moving axes, the mechanical ratings complete the profile. A fixed installation must respect a minimum bend of 5 × outer cable diameter, while drag-chain travel can reach 4 m/s. The cable is rated for a life of 5 million flexing strokes and a torsional allowance of ±30 °/m, which suits rotary tables and articulated robots. This arrangement supports repeated bending and twist in moving machine sections while keeping power and feedback circuits in a single harness.
