ZK1090-3191-0050 Beckhoff
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The Beckhoff ZK1090-3191-0050 is a 5 meter motor cable from the ZK Motor Cables series. It features a straight M8 4-pin A-coded connector on one end and a straight RJ45 8-pin connector on the other, with a conductor size of AWG26 and jacket made of PUR. This cable offers a maximum speed of 15 m/s, supports up to 20 million cycles, and has a bend radius of 20 times the cable diameter.
Internal Product Review
The ZK1090-3191-0050 is a Beckhoff cable assembly with straight M8 4-pin A-coded and straight RJ45 8-pin terminations, built with a PUR jacket. The 100 Ω ±15 Ω characteristic impedance and 90% shield coverage support clean, stable signal transmission in motion applications. A 20 million-cycle rating makes this cable an excellent choice for long-service dynamic installations.
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Product Description:
The ZK1090-3191-0050 cable is manufactured by Beckhoff within the ZK Motor Cables series. It serves as a movable interconnect between field devices and control hardware, delivering low-voltage power and high-speed data in industrial automation systems. By combining a straight M8 4-pin A-coded connector with a straight RJ45 8-pin plug, the assembly links motors or sensors directly to Ethernet-based controllers while remaining suitable for continuous flexing in cable carriers.
The cable is supplied in a length of 5.00 m and terminates with the two molded ends described above, enabling simultaneous power and EtherCAT transmission. A differential pair impedance of 100 Ω ±15 Ω (100 MHz) matches standard industrial transceivers and limits signal reflections. Inside the jacket, a twisted quad of 1 × 4 × 0.14 mm² (AWG26) conductors is formed from 19 strands of 0.1 mm wire, giving fine-strand flexibility. During operation, the lead can bend to 20 × cable diameter without fatigue, and the external profile remains at 5.4 mm ± 0.3 mm for compact routing. Additional parameters include a PUR jacket, a loop resistance of 250 Ω/km, and a mutual capacitance of 51 pF/m at 1 kHz, all of which influence attenuation and mechanical life.
A mechanical rating of 10 m/s² acceleration and a travel speed up to 15 m/s allow the cable to track fast gantry axes while remaining serviceable for as many as 20 million flex cycles. The conductor system supports applications up to 30 V, and a tinned copper braid that covers 90 % of the circumference minimizes electromagnetic interference in dense installations. With a signal propagation delay of 5.55 ns/m, the lead introduces minimal latency while maintaining reliable communication throughout its specified service window.
