PDK81301-5*2.5 Watertight Power Cable – 5-Core 2.5mm² Bare Copper, PVC Insulation, LCP Braid, TPU Jacket, 500KG Tensile, For Subsea Distribution & ROV Systems

This PDK81301 watertight power cable is specifically engineered for subsea and harsh-environment applications requiring multi‑conductor power distribution with moderate mechanical strength. It integrates five 2.5 mm² (approx. AWG 14) stranded bare copper conductors – a robust configuration suitable for three‑phase plus neutral and earth (3PH+N+E), dual‑circuit DC, or multiple independent power feeds. All conductors are bare copper to ensure high conductivity and minimal resistive losses over extended cable runs. PVC (Polyvinyl Chloride) provides primary insulation with good dielectric strength, flexibility, and resistance to moisture and mild chemicals, offering a cost‑effective solution for general underwater power applications. The cable is reinforced with an LCP (Liquid Crystal Polymer) braid – a high‑strength, low‑creep, ultra‑low‑moisture‑absorption material that delivers exceptional tensile capacity, cut resistance, and mechanical protection while maintaining a lightweight profile.

This LCP reinforcement enables the cable to achieve a 500 kg breaking strength, ensuring safe deployment and retrieval in moderate‑depth operations and current‑prone environments. The outer jacket is extruded from TPU (Thermoplastic Polyurethane) , delivering outstanding abrasion, hydrolysis, and oil resistance, as well as flexibility for handling and installation. The cable incorporates a multi‑layer watertight construction with water‑swellable tapes and pressure‑resistant fillers to prevent both radial and longitudinal water ingress. It is ideal for ROV tether sections, subsea distribution hubs, underwater lighting arrays, offshore instrumentation, and marine observatory power feeds – where multiple independent power circuits, reliable transmission, moderate pull strength, and absolute watertight integrity are essential.

Key Features – Bare Copper Conductors, PVC Insulation, LCP Braid, 500KG Tensile, TPU Sheath

Bare copper conductors (5×2.5 mm²) – five stranded bare copper cores for efficient AC/DC power distribution; 2.5 mm² cross‑section supports up to 20‑25 A per core (depending on grouping and derating), suitable for motors, lighting, and distributed sensors.

PVC insulation – rated -40°C to +105°C; provides stable insulation resistance, low moisture absorption, and good resistance to oils, acids, and alkalis – suitable for general underwater and industrial environments.

LCP braid reinforcement – liquid crystal polymer braid delivers high tensile strength, minimal creep, and ultra‑low moisture absorption (0.04%), enhancing mechanical durability and providing 500 kg breaking capacity without significant weight increase.

500 kg tensile strength – integrated LCP braid ensures safe handling, deployment, and recovery in moderate‑depth operations and current‑prone environments, reducing the risk of tensile failure.

TPU outer sheath – polyurethane jacket offers exceptional abrasion, cut, tear, and hydrolysis resistance; remains flexible even at low temperatures and resists oils, greases, UV, and marine fouling.

Watertight integrity – multi‑layer water‑blocking tapes and compact core filling prevent water migration along the cable, even under hydrostatic pressure.

Color‑coded cores – individual conductor colors (e.g., brown, black, grey, blue, green/yellow) for easy identification and termination in junction boxes or connectors.

Ideal For

ROV and AUV tether sections for distributing power to multiple payloads (lights, cameras, sonar, thrusters) with 500 kg pull capacity

Subsea junction boxes and power distribution hubs with multiple output circuits (5‑core configuration)

Underwater LED lighting arrays and strobe systems requiring separate feeds for each light head or zone

Offshore platform instrumentation and wellhead control power distribution with moderate mechanical demands

Subsea observatories and ocean bottom nodes with multiple sensor power feeds

Marine renewable energy systems (wave/tidal) with internal power wiring

Any subsea application demanding 5‑conductor 2.5 mm² power distribution + 500 kg tensile + watertight integrity

Conclusion

This PDK81301‑5*2.5 watertight cable provides a reliable, mechanically reinforced multi‑circuit power distribution solution for a wide range of subsea applications. The combination of bare copper conductors, PVC insulation, LCP braid reinforcement (500 kg tensile), and a rugged TPU sheath ensures efficient power transmission, long service life, and resistance to seawater and mechanical wear. It is an ideal choice for ROV systems, offshore infrastructure, and oceanographic instrumentation.

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