ZK4500-0003-0070 Beckhoff
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The ZK4500-0003-0070 is a motor cable from Beckhoff, part of the ZK Motor Cables series. It has a cable length of 7 meters, a maximum operating voltage of 1000 V AC, and an outer diameter of 11.7 mm. This cable features bare copper conductors, 85 percent minimum shield coverage, and a PVC jacket with a weight of 224 kg per kilometer.
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Product Description:
The ZK4500-0003-0070 is a motor supply and feedback cable manufactured by Beckhoff as part of the ZK Motor Cables series. It is intended for routing power, brake, and low-level signal conductors between a servo drive and its motor in industrial automation cells. By combining these paths in one shielded assembly, the cable streamlines machine wiring and maintains the stable signal transmission needed for synchronized multi-axis motion.
This model is delivered in a fixed length of 7.00 m. Inside the sheath, a balanced set of conductors is arranged as 4 × 1.5 mm² + 2 × (2 × 0.75 mm²), supplying phase current, brake control, and encoder lines from a single run. The 1.50 mm² power cores and the 0.75 mm² brake and signal pairs use bare copper for low contact resistance, while an overall braid with 85 % minimum optical coverage helps reduce electromagnetic noise. External dimensions remain compact because the extruded PVC jacket and filler yield an outside diameter of 11.7 mm and a mass of 224 kg/km, which supports routing through drag-chain carriers. The assembly is rated for up to 1000 V AC in fixed or flexible service, allowing it to feed servo motors that operate on the high-voltage DC link of Beckhoff AX drive systems.
Electrical losses are constrained by a maximum conductor resistance of 13.3 Ω/km on the 1.50 mm² power bundle and 26.0 Ω/km on each 0.75 mm² signal pair, keeping voltage drop within servo drive tolerances across the specified length. The polypropylene insulation provides a minimum volume resistivity of 500 MΩ·km, and it withstands a dielectric proof test of 4000 V without breakdown, ensuring separation between phases under switching transients. These electrical characteristics help reduce voltage drop and unwanted coupling between the power and feedback conductors during repeated motion.
