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RONA Low Voltage REZH 5*0.5mm2 Longitudinal Pressure-resistant Watertight Cable for Underwater Equipment

Conductor: Stranded Bare/Tinned Copper
Water-Blocking Tech: Internal Swellable Yarns / Blocking Gel
Jacket Material: Specialized Marine-Grade Rubber
Rated Voltage: 300V / 500V (Low Voltage)
Operating Temp: -40°C to +90°C
  • REZH 5*0.5

  • RONA

  • 85444929

  • 500m

Availability:
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Product Overview

The RONA REZH 5×0.5mm² Longitudinal Pressure-Resistant Watertight Cable is an advanced low-voltage connectivity solution specifically designed for mission-critical underwater equipment. Unlike standard marine cables, the REZH series features a highly specialized longitudinal water-blocking design. This means if the outer jacket is ever accidentally compromised or severed, the internal water-blocking elements will instantly prevent water ingress from traveling along the cable axis, effectively protecting your expensive subsea electronics, sensors, and control systems from catastrophic water damage.


Technical Advantages

  • Ultimate Longitudinal Water Barrier: Engineered with premium water-swellable tapes, yarns, or specialized blocking compounds filling the interstices of the cable. Upon contact with seawater, these materials rapidly expand to form an impenetrable barrier against axial water migration.

  • High Hydrostatic Pressure Resistance: Designed to maintain its structural integrity and electrical performance under deep-water hydrostatic pressure, ensuring no signal loss or power failure in harsh subsea conditions.

  • Excellent Mechanical Durability: The specialized outer jacket offers superior resistance to abrasion, seawater corrosion, UV radiation, and mechanical stress, making it highly reliable for dynamic underwater operations.

  • Compact & Flexible Design: The 5x0.5mm² configuration keeps the cable outer diameter (O.D.) minimal while maintaining exceptional flexibility, perfect for tight installations in underwater devices.


▍Structure

  • Conductor: Multiple strands of finely twisted tinned copper wire, compliant with VDE 0295, Class 5 conductor

  • Insulation: Ethylene propylene rubber mixture, or fluorinated ethylene propylene copolymer

  • Wire core identification: Black wire core, continuous white numerical number, fluorinated ethylene propylene copolymer is white, continuous black numerical number.

  • Shielding: Tin plated copper braided shielding with a coverage rate of approximately 85%

  • Outer sheath: polyether polyurethane or chloroprene rubber sheath

  • Outer sheath color: black


Specifications

ModelRONA REZH
Core Configuration5 × 0.5 mm² (Ideal for low-voltage signal, data, and precise control transmission)
Sealing TypeLongitudinal Watertight (Axial water-blocking)
Voltage Rating300/500V (Low Voltage)
ConductorHighly flexible stranded copper (Ensuring excellent bending characteristics underwater)
Insulation & Outer SheathHydrolysis-resistant, microbe-resistant, and high-pressure-resistant elastomer Rubber
Standard ComplianceCE, RoHS, and relevant marine engineering standards.
Temperature Range

Fixed installation: -40℃~90℃

Moving installation: -35℃~90℃

Minimum bend radius

Fixed installation: approximately 5x D (cable outer diameter)

Movable installation: approximately 10x D (cable outer diameter)

Weather resistanceWater resistance, UV resistance, temperature change resistance
Flame retardant propertiesCompliant with IEC 60332-1


Applications

Because of its reliable longitudinal sealing and low-voltage signal transmission capabilities, the RONA REZH cable is the preferred choice for:

Subsea Sensors & Instruments:

Wiring for underwater sonar, pressure sensors, and water quality monitoring devices.

ROV & AUV Systems: 

Tethers and internal wiring for Remotely Operated Vehicles and Autonomous Underwater Vehicles.

Underwater Imaging: 

Power and signal transmission for deep-sea high-definition cameras and subsea lighting systems.

Marine Engineering: 

Offshore drilling platforms, oceanographic research equipment, and aquatic automation systems.


Partner with RONA for Subsea Cable Solutions

With deep expertise in marine and special cables, RONA ensures every watertight cable undergoes strict pressure and water-penetration testing before leaving our facility. We provide highly customizable solutions tailored to your specific depth and environmental requirements.



*Protect your underwater equipment with proven longitudinal sealing technology. 

[Contact RONA Today] for a quick quote, technical datasheets, or custom cable designs for your next marine project!



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RONA is a premier high-tech company specializing in the research, design, and production of special flexible cables. We provide reliable connectivity solutions through professional engineering technology and rigorous manufacturing standards.

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