Product Description:

The ZK1090-3132-0050 is a flexible motor cable from Beckhoff that belongs to the ZK Motor Cables series. It is intended for signal and low-power supply between servo drives and compact motors in automated machinery where compact M8 connectors are required. By integrating the cable, connector coding, and mechanical strain relief into a single assembly, the design provides a plug-and-play link that maintains electromagnetic compatibility and minimizes installation time on production lines and material-handling equipment.

The assembly is supplied in a length of 5.00 m and terminates with a M8 male plug to M8 female socket, enabling direct in-line extensions without additional adapters. Its 4-pin layout follows the A-code assignment, and the internal pairs are arranged in a star quad geometry that improves noise immunity in environments with switching inverters. Current-carrying conductors use a 1 × 4 × 0.14 mm² (AWG26) cross-section built from 19 × 0.1 mm stranded copper to maintain flexibility. The 30 V rated PVC insulation supports extra-low-voltage I/O circuits, while mutual capacitance of 51 pF/m at 1 kHz and a signal running time of 5.55 ns/m keep propagation delays predictable for synchronized motion control. The A-coded shells and keyed profile prevent mismating, and the nut can be tightened to 0.4 Nm for secure fastening.

The molded connector contacts are sized for 4 A at 40 °C and isolated for 50 V AC/60 V DC, allowing the cable to carry encoder power and differential signals without overloading the pins. For dynamic cable tracks, the design withstands 10 m/s² of acceleration and a peak travel speed of 15 m/s. A loop resistance of 250 Ω/km helps limit voltage drop in longer runs, and the knurled coupling nut supports secure fastening during motion.