ZK7A26-3031-0060 by Beckhoff

The ZK7A26-3031-0060 is a factory-terminated motor cable manufactured by Beckhoff and supplied within the ZK Motor Cables series. It delivers drive power and EtherCAT communication between a servo amplifier and a remote motor, enabling synchronized position control in automated assembly lines, packaging stations, and handling axes. The cable's integrated shielding, molded connectors, and ingress protection allow direct routing through machine frames where oil mist, vibration, and electrical noise are present.

A total length of 6.00 m allows the cable to span typical cabinet-to-axis distances without extension boxes. The fieldbus pairs have a conductor cross-section of 0.34 mm² (AWG22), providing adequate current capacity for the transceiver while keeping the bundle flexible during drag-chain operation. The connector reserves 4 pins exclusively for EtherCAT signals, maintaining deterministic timing on full-duplex links. Compliance with Cat.5 transmission standards ensures impedance control and crosstalk performance at frequencies up to 100 MHz. The power cores withstand line voltages up to 630 V AC / 850 V DC, matching the output range of 400 V-class servo drives used on many production machines.

A bayonet locking system secures the mating halves quickly and resists loosening during continuous motion. The interface uses the Key 3 coding pattern, so only cables with the correct pin orientation can engage, helping prevent connection errors during installation or maintenance. Once coupled, the assembly provides IP65 / IP67 protection, blocking dust and resisting water exposure during machine operation and washdown procedures. Continuous 360° shielding surrounds the conductors, establishing a low-impedance path to ground around the full circumference and attenuating electromagnetic interference that could disrupt high-speed fieldbus communication. The molded connector bodies provide strain relief where the cable enters each interface, reducing localized stress as the assembly bends or moves with the connected axis.