LanMarin Cat 7 Cable | DNV-Certified Cables for Marine & Offshore Data Installations
The LanMarin Cat 7 SHF2 Solid S/FTP Cable is a high-performance, low voltage marine and offshore Ethernet cable designed for data transmission in demanding shipboard and offshore environments by NEK Sealine. Built to IEC 61156-5 Cat 7 cable standards, it supports frequencies up to 600 MHz with excellent shielding for EMI protection, ensuring reliable network performance even in electrically noisy conditions.
With a solid bare copper AWG 23/1 conductor, foam PE insulation, individual foil screens for each pair, and an overall tinned copper braid, the LanMarin Cat 7 cable delivers optimal signal integrity for Ethernet, PoE+, and other high-speed data applications. The robust SHF2 jacket offers UV, oil, and fuel resistance, making it ideal for indoor, outdoor, and open-deck installations.
Certified by DNV and compliant with IEC marine cable standards, this cable is trusted for shipbuilding, offshore platforms, and industrial marine networks where durability, compliance, and performance are critical.
LanMarin Cat 7 SHF2 Solid S/FTP Cable
Thorne & Derrick International are a trusted UK stockist, supplier and distributor of certified marine and offshore cables worldwide. Contact our cable experts for engineered solutions, technical advice, quotations, and fast delivery for both UK & export orders.
LanMarin Cat 7 SHF2 Solid S/FTP Cable – Technical Specifications & Construction
The table below details the electrical, mechanical, and construction specifications for the LanMarin Cat 7 SHF2 Ethernet cable, ensuring compliance with marine and offshore networking requirements.
LanMarin Cat 7 Cable Technical Specifications |
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|---|---|
| Specification | Value |
| Operating temperature (normal) | -40 – +80 °C |
| Temperature @ installation | -20 – +60 °C |
| Dielectric strength | DC 1 kV for 1 min |
| Characteristic impedance | 100 ± 5 Ω @ 100 MHz |
| Conductor DC resistance | ≤ 93.8 Ω/km |
| Tensile strength | > 100 N |
| Resistance DC unbalance | ≤ 5 % |
| Insulation resistance | ≥ 5000 MΩ × km (IEC 61156-5) |
| Power over Ethernet | IEEE 802.3at-2009 Type 4 (PoE++) |
| Rated voltage | ≤ 80 V |
| Capacitance unbalance | ≤ 160 pF/100 m @ 1 kHz (IEC 61156-5) |
| Velocity factor | 70 % |
| Mutual capacitance | 48 nF/km |
| Min. bending radius (installed) | 5 × outer diameter |
| Min. bending radius (@ installation) | 10 × outer diameter |
LanMarin Cat 7 Cable Construction Details |
|
|---|---|
| Specification | Details |
| Conductor | Solid bare Cu 0.56 mm (AWG 23/1) |
| Insulation | Foam PE Ø = 1.34 ± 0.05 mm |
| No. of pairs | 4 |
| Colour code | Pair 1: Blue – White/Blue Pair 2: Orange – White/Orange Pair 3: Green – White/Green Pair 4: Brown – White/Brown |
| Individual Screen pairs | Al/Mylar tape |
| Drain wire | 0.4mm solid Annealed Tinned Copper |
| Overall Screen | Tinned Cu-braid ≥ 60% coverage |
| Jacket | Grey SHF2 |
| O.D. | 8.0 ± 0.4 mm |
| Weight | 70.6 kg/km |
| Jacket marking | NEK KABEL AS – LanMarin Cat7 S/FTP 4x2xAWG23/1 – SHF2 – IEC 60332-3-22 – DNV – Batch no– DD/MM/YY – ****m |
LanMarin Cat 7 Cable – Applications, Compliances & Characteristics
Cable Characteristics Compliance and Certification Information
This product complies with international safety and environmental standards, ensuring safe operation and minimal environmental impact. The following certifications and properties confirm its suitability for demanding applications:
- Halogen Free: Yes, with maximum content of corrosive and toxic gases.
- IEC 60754-1 & IEC 60754-2: Material properties, insulation, and sheath.
- IEC 61156-5: Transmission performance standards.
- IEC 60332-3-22: Flame resistance.
- IEC 60332-1-2: Flame retardant properties.
- IEC 61034-2: Smoke emission ≤ 60%.
- IRM 902: Oil and fuel resistance at 100°C for 24 hours.
- UL 1581 (300H): UV resistance.
- Certification: DNV approved.
LanMarin Cable Applications
The LanMarin Cat 7 SHF2 solid S/FTP cable is engineered for high-performance data transmission in demanding shipboard and offshore environments where bandwidth, shielding, and mechanical strength are essential. With a 100 Ω impedance, 600 MHz bandwidth, and full compliance with IEEE 802.3at-2009 Type 4 (PoE++), this robust LAN cable delivers secure Ethernet and PoE power in harsh conditions while maintaining DNV certification.
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Shipboard Networking: Provides reliable high-speed Ethernet backbone for onboard IT systems, navigation, and communications.
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Offshore Platforms: Used for secure LAN connections in drilling rigs and oil & gas installations, resistant to oil, fuel, and UV exposure.
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Industrial Marine Automation: Ensures stable data links for control, monitoring, and instrumentation systems in corrosive environments.
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Surveillance & Security Systems: Supports IP camera networks with PoE++ capability, powering devices directly through the cable.
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Entertainment & Crew Networks: Delivers high-bandwidth data for video streaming, VoIP, and multimedia services on vessels.
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Outdoor & Harsh Environments: Flame-retardant, halogen-free, UV- and weather-resistant, making it suitable for exposed cable runs at sea.
LanMarin Cat 7 Cable Attenuation Characteristics |
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|---|---|---|---|---|---|---|---|---|---|---|
| Freq. [MHz] | Att. std [dB] | Att. typ [dB] | RL std [dB] | RL typ [dB] | NEXT std [dB] | NEXT typ [dB] | PSNEXT std [dB] | PSNEXT typ [dB] | ELFEXT std [dB] | ELFEXT typ [dB] |
| 4 | 3.74 | 3.59 | 23.0 | 25.0 | 78.0 | 101.0 | 75.0 | 98.0 | 78.0 | 93.0 |
| 8 | 5.24 | 5.03 | 24.5 | 27.5 | 78.0 | 99.0 | 75.0 | 96.0 | 77.2 | 91.0 |
| 10 | 5.86 | 5.63 | 25.0 | 28.0 | 78.0 | 98.0 | 75.0 | 95.0 | 75.3 | 89.0 |
| 16 | 7.41 | 7.11 | 25.0 | 28.0 | 78.0 | 96.0 | 75.0 | 93.0 | 71.2 | 86.0 |
| 20 | 8.29 | 7.96 | 25.0 | 28.0 | 78.0 | 93.0 | 75.0 | 90.0 | 69.3 | 83.0 |
| 25 | 9.29 | 8.92 | 24.3 | 28.0 | 78.0 | 93.0 | 75.0 | 90.0 | 67.3 | 81.0 |
| 31.25 | 10.41 | 10.00 | 23.6 | 27.0 | 78.0 | 93.0 | 75.0 | 90.0 | 65.4 | 79.0 |
| 62.5 | 14.88 | 14.28 | 21.5 | 25.5 | 75.5 | 88.0 | 72.5 | 85.0 | 59.4 | 74.0 |
| 100 | 19.02 | 18.26 | 20.1 | 24.0 | 72.4 | 83.0 | 69.4 | 80.0 | 55.3 | 69.0 |
| 200 | 27.47 | 26.37 | 18.0 | 21.0 | 67.9 | 83.0 | 64.9 | 80.0 | 51.5 | 63.0 |
| 250 | 31.97 | 30.69 | 17.3 | 20.0 | 66.4 | 80.0 | 63.4 | 77.0 | 49.3 | 61.0 |
| 300 | 34.19 | 32.82 | 17.3 | 19.0 | 65.2 | 80.0 | 62.2 | 77.0 | 45.8 | 55.0 |
| 500 | 45.26 | 43.45 | 17.3 | 19.0 | 61.9 | 75.0 | 58.9 | 72.0 | 41.3 | 50.0 |
| 600 | 50.10 | 48.10 | 17.3 | 19.0 | 60.7 | 75.0 | 57.7 | 72.0 | 39.7 | 48.0 |
About NEK Sealine
Thorne & Derrick are trusted stockists and suppliers for NEK Sealine, a specialist manufacturer of marine and offshore cables, trusted for reliable performance in the world’s harshest environments. Their LanMarin Cat 5e, Cat 6, and Cat 7 LAN cables are engineered for shipbuilding, offshore oil & gas, and renewable energy, meeting IEC and NEK standards with DNV approval.
Built for durability, NEK Sealine cables are halogen-free, flame-retardant, UV, oil, and fuel resistant, ensuring safe and consistent transmission of data, power, and control signals in demanding marine applications.
Contact our team of experts – offering 40+ years of industry experience, we distribute the most extensive range of 11kV 33kV 66kV MV HV Medium & High Voltage Cable Joints, Terminations & Connectors from manufacturers including Südkabel, 3M, Prysmian, Nexans Euromold, Elastimold, Pfisterer CONNEX & SEANEX and Shrink Polymer Systems.
LanMarin Cat 7 SHF2 Solid SFTP Cable – Technical DatasheetDownload
