Specialty cables: design, R&D, manufacturing
PAIDESpecial Cable

Subsea Watertight Low Voltage Cable-5-Core Tinned Copper FEP Insulation TPU Sheath

面向水下与恶劣环境需同时进行低压供电和多路独立信号/控制传输的混合用途设计。2×0.75mm²电源芯与3×0.5mm²信号/控制芯均采用镀锡铜导体,FEP绝缘,外层TPU护套,径向水密,水压耐受10MPa。FEP赋予电缆宽温域(-40~10

  • Customizable construction, cores & length
  • Fast samples; 5-7 working days for batch

Specifications

Model numberPDK81301-2*0.75+3*0.5
Specification2*0.75+3*0.5
Conductor materialTinned copper
Insulation materialFEP
Sheath materialThermoplastic Polyurethane (TPU)
Sheath outer diameter (mm)7.2±0.2mm
Sheath colorblack
Temperature range-40-105℃
Water pressure resistance10MPA

Product Introduction

PDK81301-2×0.75+3×0.5 五芯低压水密混合电缆——镀锡铜导体、FEP绝缘、TPU护套

面向水下与恶劣环境需同时进行低压供电和多路独立信号/控制传输的混合用途设计。2×0.75mm²电源芯与3×0.5mm²信号/控制芯均采用镀锡铜导体,FEP绝缘,外层TPU护套,径向水密,水压耐受10MPa。FEP赋予电缆宽温域(-40~105℃)、极低吸湿、优异耐化学性与固有阻燃性,机械防护可靠。适用于ROV、水下传感器、船载仪表、海上平台、水下摄像机与控制系统,在深水压力与长期海水浸泡下稳定运行。

This hybrid watertight cable is specifically designed for underwater and harsh-environment applications requiring simultaneous low-voltage power delivery and multiple independent signal or control circuits. It integrates two 0.75 mm² power conductors and three 0.5 mm² signal/control conductors into a multi-layer water-sealed structure. Utilizing FEP (Fluorinated Ethylene Propylene) as the core insulation material for all conductors and TPU (Thermoplastic Polyurethane) as the outer sheath, the cable provides superior dielectric properties, a wide operating temperature range, negligible moisture absorption, excellent chemical resistance, inherent flame retardancy, and outstanding mechanical protection. The cable offers radial watertight performance, making it ideal for applications such as ROVs, subsea sensors, shipboard instrumentation, offshore platforms, underwater cameras, and control systems - where reliable power distribution, clean signal transmission, and absolute water sealing are critical. By combining excellent electrical characteristics with extreme environmental and mechanical resistance, this cable ensures stable operation even under deep-sea pressure and long-term seawater immersion.

Model number

PDK81301-2*0.75+3*0.5

Specification

2*0.75+3*0.5

Conductor material

Tinned copper

Insulation material

FEP

Sheath material

Thermoplastic Polyurethane (TPU)

Sheath outer diameter (mm)

7.2±0.2mm

Sheath color

black

Temperature range

  • 40-105℃

Water pressure resistance

10MPA

Key Features – Tinned Copper Conductors, FEP Insulation & TPU Sheath

Tinned copper conductors (2×0.75 mm² + 3×0.5 mm²) – tinned strands provide outstanding corrosion resistance in marine environments, ensuring long-term reliability.

FEP insulation – offers a wide -40°C to +105°C operating range, virtually zero moisture absorption, excellent resistance to seawater, oils, and chemicals, and VW-1 flame retardancy.

TPU outer sheath – provides exceptional abrasion resistance, high tensile strength, UV stability, flexibility at low temperatures, and resistance to hydrolysis, marine biofouling, and oils.

Multi-layer watertight construction – radial water sealing under high hydrostatic pressure, preventing longitudinal water ingress even if the jacket is nicked.

Ideal For

Subsea robots (ROVs/AUVs) and underwater instruments requiring mixed power (0.75 mm²) and multiple control/signal lines (0.5 mm²)

Shipboard and submarine bulkhead cables with watertight penetrations for sensor networks and control loops

Subsea observatories and ocean monitoring nodes (power + data acquisition channels)

Offshore drilling platforms and marine renewable energy systems

Underwater cameras, lights, valve actuators, and small thrusters

Military and defense underwater communication and control systems

Any underwater application demanding reliable multi-circuit power/signal + watertight integrity without mechanical tension requirements

This cable simultaneously satisfies underwater equipment needs for stable power delivery and multiple independent signal lines under high hydrostatic pressure.

It is an ideal solution for fields such as marine engineering, subsea instrumentation, oceanographic research, and underwater defense control systems.

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