ZK4704-0421-20 Beckhoff
Wake Industrial LLC is not an authorized distributor of this product.
The Beckhoff ZK4704-0421-20 is part of the ZK Motor Cables series, featuring zinc diecast and plastic body materials and a bayonet locking method. This cable has a rated power current of 14 Amps at 630 V AC/DC and a protection rating of IP66/67. It includes brass and gold plated contacts with crimp connection wire termination and supports up to 500 mating cycles.
Internal Product Review
The Beckhoff ZK4704-0421-20 is a motor cable connector with a bayonet locking method and power 3+PE plus signal 5 contact positions. A 630 V AC/DC rating with 14 A power capacity supports dependable motor connectivity in demanding automation assemblies. Gold-plated brass contacts and IP66/67 protection give this connector excellent electrical integrity and field-ready durability.
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Product Description:
The ZK4704-0421-20 motor cable is produced by Beckhoff within the ZK Motor Cables series. It combines a power trio with protective earth and a five-wire feedback bundle in one jacket, linking servo drives to field-mounted motors in industrial automation lines. By integrating both circuits, the cable cuts panel wiring and helps maintain deterministic motion control in pick-and-place systems, gantries, and packaging machines that demand repeated flexing and dependable EMC performance. The molded connector housing and strain-relief elements are preassembled, so the cable can be connected directly to compatible machine hardware.
The connector shell uses bayonet locking, which delivers quick quarter-turn engagement while resisting vibration-induced release. A fluoroelastomer seal surrounds the interface, supporting the cable’s IP66/67 protection rating, so sprayed water or dust cannot enter the mating area. Power conductors with a cross-section of 0.75 mm² carry up to 14 A continuously at a system potential of 630 V AC/DC. Each pin is machined from brass with gold plating to lower contact resistance, and the crimp termination helps maintain consistent gas-tight joints. The zinc die-cast and plastic body materials add mechanical strength without excessive mass, while FKM seals preserve elasticity across a wide temperature span.
For dynamic drag-chain routing, the cable is rated for 5 million bending cycles at linear runs up to 4 m/s, supporting high-speed axes in assembly lines. A bulk weight of 175.0 kg/km balances durability with manageable cable-track loads, and each finished piece weighs 0.035 kg to ease manual handling during installation. Signal pairs use a shielded conductor size of AWG22, providing low-noise encoder feedback alongside the power cores. The plug withstands 500 mating operations, and brass-to-brass crimp interfaces sustain reliable contact through the entire flex life.
