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21 Conductors 20AWG Subsea PUR Cable | Complex ROV Umbilical

Published on:2026-05-24 Click:15

21 Conductors 20AWG Subsea PUR Cable | Complex ROV Umbilical

21 conductors 20AWG subsea polyurethane cable. High conductor count for complex ROV umbilicals requiring many independent signal and control channels.

Product introduction

21 Conductors 20AWG Subsea PUR Cable for Complex ROV Umbilicals

With 21 x 20AWG conductors in a single PUR-jacketed cable, this high-core-count subsea cable addresses the most complex ROV and subsea system requirements -- providing up to 21 independent signal and power channels for multi-thruster ROVs, manipulator arms, sonar systems, sensor suites, and navigation instruments, all in a single drag-minimising cable assembly.

Parameter Specification
Conductors 21 x 20AWG
Jacket Material Polyurethane (PUR)
Voltage Rating 300V RMS
Temperature Range -30°C to +80°C
Depth Rating Up to 4,000 m
Shielding Overall braid (individual screening optional)
Colour Coding 21-colour or grouped colour + numbering

Key Applications

  • Complex work-class ROV multi-function umbilical
  • Subsea 21-actuator and sensor control system
  • ROV manipulator arm multi-axis cable
  • Offshore subsea multi-instrumentation cable
  • Research ROV full-function tether cable

For complex 21-core umbilical specifications and custom design: sales@rovcable.com -- Shanghai Kabel Intelligence Technology Co., Ltd.

Frequently Asked Questions

How are 21 conductors identified in practice?

We apply a 21-colour/number identification scheme: cores are colour-coded in groups of 5--7 (using tracer stripes on the insulation) and numbered with sequential print, making identification unambiguous even in large-diameter multi-core cables.

What is the typical outer diameter of a 21-core 20AWG cable?

A 21 x 20AWG PUR cable typically has an OD of 20--28 mm depending on shielding and jacket thickness. We optimise the OD for minimum drag while maintaining mechanical protection. Confirm the OD during the design review when ordering.

Applications

  • Underwater cable assemblies for ROV, AUV and subsea vehicle power and signal delivery
  • Subsea sensor and instrument cabling requiring flexible, abrasion-resistant PUR jackets
  • Marine renewable energy cable connections, offshore platform and coastal installations
  • Underwater lighting, camera and video system cable assemblies with connector terminations
  • Custom umbilical cables for oceanographic research and temporary subsea deployments

Customization Options

  • Custom cable lengths from 1m to 1000m+ with specified conductor counts and gauges
  • Direct moulding termination to any ROV Connector series for complete cable assemblies
  • Neutral buoyancy options, Kevlar reinforcement and specialized jacket colors available
  • Certified cable tension, flex and pressure testing with full test documentation
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