ZK7A26-3031-0017 Beckhoff
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The Beckhoff ZK7A26-3031-0017 is a motor cable from the ZK Motor Cables series and has a length of 1.7 meters. It features an IP65/IP67 protection class, a B23 connector size, and is rated for 630 V AC or 850 V DC. The cable offers Cat.5 Ethernet class, contains 4 data pins with a 0.34 mm² cross-section, and supports mechanical coding 3.
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Product Description:
The ZK7A26-3031-0017 is a motor supply and feedback cable produced by Beckhoff within the ZK Motor Cables series. It links a servo motor to its drive module so that power, control, and diagnostic signals can pass through a single routed assembly in industrial automation cells. Using this prefabricated cable minimizes wiring errors, while the molded connectors preserve sealing at the machine interface and provide secure connections during machine operation.
The assembly is delivered at a fixed length of 1.7 m, allowing cabinet-to-motor routing inside compact machines without excess slack. Its drive end uses a circular connector in the B23 size class, which has a shell diameter commonly used with medium-frame servo motors and compatible Beckhoff drive ports. Power conductors are insulated for up to 630 V AC/850 V DC, so the cable can carry typical three-phase motor voltages as well as regenerated DC produced during braking. An overmolded backshell and O-ring arrangement provide IP65/IP67 sealing, keeping dust and water from reaching the contacts when the connector is properly latched. Integrated twisted pairs rated for Cat 5 support 100 Mbit/s real-time Ethernet traffic used for drive feedback and distributed clock synchronization.
The feedback cores have a conductor area of 0.34 mm² (AWG22), balancing signal integrity with cable flexibility during continuous motion. A dedicated sensor insert carries 4 data pins, separating encoder channels from the motor’s high-current phases. Plug orientation is controlled by a mechanical key with code 3, preventing accidental 180-degree rotation when the cable halves are connected. The voltage designation is User-Defined Voltage, so the drive voltage configuration must be matched to the connected motor’s nameplate data. This arrangement allows the cable to carry motor power and feedback communication within one assembly while maintaining separation between high-current conductors and sensitive data channels.
