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Product

Subsea Gigabit Ethernet & multicore power/control cableCat.6 / Cat.5 F/UTP300/600 V + 16/18 CoresWater-Blocked PUR

26XM520 & 24XM521 300/600 V Subsea Cat.6/Cat.5 LAN Hybrid CableTIA-568 / IEC 61156 · 600 V · Subsea gigabit ethernet & multicore power/control cable

26XM520 & 24XM521 Cat.6 / Cat.5 F/UTP Ethernet & 16/18-Core Power/Control Water-Blocked PUR Underwater LAN Hybrid Cable (TIA-568 / IEC 61156, 600 V, -30 °C to +80 °C, min. bend radius 10 × OD).

Water-resistant

EMC screen

Low-EMC design

Oil-resistant

Configuration

Order designation: 26XM520 Config A (Compact)
Outer Ø ≈: 10.4 mm
Net weight ≈: 155 kg/km
Tensile rating ≈: 4.5 kN
Core / stranding: Stranded tinned Cu (IEC 60228 / ASTM)

All sizes (3)

Request a quote Datasheet WhatsApp info@tebaoflex.com

Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 600 V
Operating temp.: −30…+80 °C
Min. bend radius: 10 × OD
Core / conductor: Cat.6/5 + 16–18C
Outer protection: Black Subsea PUR
Standard: TIA-568

Typical values for this cable type, based on ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is 26XM520 & 24XM521 right for your machine?

26XM520 & 24XM521 Cat.6 / Cat.5 F/UTP Ethernet & 16/18-Core Power/Control Water-Blocked PUR Underwater LAN Hybrid Cable (TIA-568 / IEC 61156, 600 V, -30 °C to +80 °C, min. bend radius 10 × OD).

Immersion & wet locations

Suitable

Water-blocked core matrix and hydrolysis-resistant subsea jacketing withstand continuous deepwater hydrostatic pressure.

Vertical / spreader reel

Suitable

Torque-balanced aramid or contra-helical steel armour supports vertical winch deployment without hockling.

Offshore platform & shipboard deck trays

Suitable

Marine-grade outer sheath and armour package resist LARS sheave abrasion, UV exposure and salt-spray corrosion.

Trailing & towing

Suitable

High tensile breaking strength supports underwater towing, ROV excursion and seabed plough/trencher duty.

Energy chain / drag chain

Not suitable

Subsea umbilical and tow construction is not intended for high-cycle indoor factory drag chains.

Use Drag-Chain Servo Cable

Typical machinesMarine & Offshore CableWork-Class & Observation ROV SystemsOffshore Wind & Subsea Power GridsOceanographic, Sonar & Seismic SurveyCommercial Diving & Subsea Intervention

Construction

Layer by layer

Shown: 26XM520 & 24XM521 (ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard) featuring cat.6 / cat.5 f/utp lan core, power & control cores (18×22 / 16×24 awg) and polyurethane outer sheath (ø14.2 / 11.1 mm) (5-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Cat.6 / Cat.5 F/UTP LAN Core	4×2×24/7 AWG Cat.6 F/UTP (26XM520) or 4×2×26/7 AWG Cat.5 F/UTP (24XM521) data core
2	Power & Control Cores (18×22 / 16×24 AWG)	18×22 AWG (26XM520) or 16×24 AWG (24XM521) stranded tinned copper conductors
3	SIWB / SWWB Water-Blocking	Silicone compound interstitial water-blocking (26XM520) or swellable tape (24XM521)
4	Braided Strength Member (480 / 320 kg)	High-tenacity aramid fiber braid supporting dynamic ROV & sonar deployment
5	Polyurethane Outer Sheath (Ø14.2 / 11.1 mm)	Black hydrolysis-resistant subsea polyurethane (PUR) outer jacket

26XM520 & 24XM521 — Standard Subsea & Marine Execution

Built to ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard with cat.6 / cat.5 f/utp lan core and polyurethane outer sheath (ø14.2 / 11.1 mm)

26XM520 & 24XM521 — Custom Drum Length & Termination Kit

Available in custom continuous subsea/wellbore drum lengths or pre-terminated assemblies

26XM520 & 24XM521 — Routine & Hydrostatic Test Certified

Supplied with EN 10204 3.1 routine dielectric, resistance & pressure/dimensional report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 600 V (ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard)
Core / conductor construction: Cat.6 / Cat.5 F/UTP LAN Core — 4×2×24/7 AWG Cat.6 F/UTP (26XM520) or 4×2×26/7 AWG Cat.5 F/UTP (24XM521) data core
Primary dielectric / buffering: Power & Control Cores (18×22 / 16×24 AWG) — 18×22 AWG (26XM520) or 16×24 AWG (24XM521) stranded tinned copper conductors

Thermal

Continuous operating temperature: −30…+80 °C (subsea, marine & submersible duty)
Short-circuit / peak thermal rating: Verified thermal stability per ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: Polyurethane Outer Sheath (Ø14.2 / 11.1 mm) — Black hydrolysis-resistant subsea polyurethane (PUR) outer jacket
Minimum bending radius: 10 × OD
Hydrostatic, tensile & crush duty: Braided Strength Member (480 / 320 kg) — High-tenacity aramid fiber braid supporting dynamic ROV & sonar deployment

Resistance

Hydrostatic pressure & water blocking: Engineered for continuous submersion and hydrostatic integrity per ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard
Seawater, oil & chemical resistance: Resistant to seawater hydrolysis, hydraulic oils and abrasion per ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard
Environmental & test standards: IEC 60228 / IEC 60332 / ISO 13628-5 / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: 26XM520 & 24XM521
Sheath colour & metre marking: Continuous metre-marked black outer finish (Black Subsea PUR)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard 26XM520 & 24XM521 subsea & marine configurations

Manufactured to ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard for subsea, offshore, deep-well and marine applications.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Tensile rating kN ≈	Min. bend R mm
26XM520 & 24XM521 Construction Schedule (−30…+80 °C)
26XM520 Config A (Compact)	4×2×24 AWG + 2×18 AWG (or 4C)	Stranded tinned Cu (IEC 60228 / ASTM)	10.4	155	4.5	85
26XM520 Config B (Standard)	4×2×20 AWG + 4×16 AWG (or 8C)	Stranded tinned Cu (IEC 60228 / ASTM)	13.3	265	9.6	110
26XM520 Config C (Heavy Hybrid)	8×2×20 AWG + 4×12 AWG (or 12C)	Stranded tinned Cu (IEC 60228 / ASTM)	16.6	420	18.5	140

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Custom core cross-sections, pair/fibre counts, armour grades and factory drum lengths available per ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
4×2×24 AWG + 2×18 AWG (or 4C)	28.40	600 V (45–100 Ω data)	−30…+80 °C
4×2×20 AWG + 4×16 AWG (or 8C)	10.70	600 V (45–100 Ω data)	−30…+80 °C
8×2×20 AWG + 4×12 AWG (or 12C)	5.40	600 V (High-Power Hybrid)	−30…+80 °C

Every production length undergoes routine conductor DC resistance, high-voltage dielectric or OTDR continuity and dimensional verification.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

ConductorClass 5 stranding
Spark test100 % in-line
Lay-upCores, earth, fillers
SheathingInner, braid / screen, outer
Electrical testsAC voltage, resistance
DimensionsOD, wall thickness
Inspection documents & dispatchDrum & dispatch

Testing & inspection	Test value / reference	Frequency
Routine tests
Conductor resistance, continuity & dimensional verification (ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard)	DC resistance at 20 °C / optical attenuation and outer diameter within ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard)	Zero dielectric breakdown and verified insulation resistance for 600 V rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, water-blocking & mechanical endurance qualification (ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard)	Verified submersion integrity, tensile load and thermal stability across −30…+80 °C	Type qualification & periodic lot audit

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

TIA-568 / IEC 61156 CompliantEN 10204 3.1 Factory Test CertificateCE, RoHS 2 (2011/65/EU) & REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX 26XM520 & 24XM521 TIA-568 / IEC 61156 600 V CE

Delivery form: Heavy-duty export fumigated wooden drums or steel subsea reels
Standard lengths: 500 m, 1,000 m or custom continuous subsea/wellbore lengths
MOQ: 100 m (standard configurations) · 500 m (custom builds)
Lead time: 2–5 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDF26XM520 & 24XM521 300/600 V Subsea Cat.6/Cat.5 LAN Hybrid Cable – technical datasheet3 sizes · construction, technical data, approvals XLSX26XM520 & 24XM521 spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-25
Updated: 2026-10-25

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What governing standard and construction define 26XM520 & 24XM521 (26XM520 & 24XM521 300/600 V Subsea Cat.6/Cat.5 LAN Hybrid Cable)?

26XM520 & 24XM521 (26XM520 & 24XM521 300/600 V Subsea Cat.6/Cat.5 LAN Hybrid Cable) is manufactured in accordance with ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard for 600 V service over -30 °C to +80 °C. Its 5-layer construction comprises cat.6 / cat.5 f/utp lan core, power & control cores (18×22 / 16×24 awg) and polyurethane outer sheath (ø14.2 / 11.1 mm).

What is the minimum bending radius and operating temperature range for 26XM520 & 24XM521?

The minimum bending radius for 26XM520 & 24XM521 is 10 × OD across its continuous operating temperature range of -30 °C to +80 °C, ensuring mechanical and dielectric reliability in subsea, marine and submersible service.

How are the concentric layers of 26XM520 & 24XM521 arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Cat.6 / Cat.5 F/UTP LAN Core — 4×2×24/7 AWG Cat.6 F/UTP (26XM520) or 4×2×26/7 AWG Cat.5 F/UTP (24XM521) data core; (02) Power & Control Cores (18×22 / 16×24 AWG) — 18×22 AWG (26XM520) or 16×24 AWG (24XM521) stranded tinned copper conductors; (03) SIWB / SWWB Water-Blocking — Silicone compound interstitial water-blocking (26XM520) or swellable tape (24XM521); (04) Braided Strength Member (480 / 320 kg) — High-tenacity aramid fiber braid supporting dynamic ROV & sonar deployment; (05) Polyurethane Outer Sheath (Ø14.2 / 11.1 mm) — Black hydrolysis-resistant subsea polyurethane (PUR) outer jacket.

What factory test certificates are supplied with 26XM520 & 24XM521?

Every production drum of 26XM520 & 24XM521 undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per ANSI/TIA-568-C.2 / IEC 61156-6 Subsea LAN Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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01Selected sizes

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02Reel & motion

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03Message for our engineers

26XM520 & 24XM521 300/600 V Subsea Cat.6/Cat.5 LAN Hybrid Cable

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Reel & motion:
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