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Product

60,000 daN aramid-braided 3 kV subsea trencher umbilical3,000 V / 1,000 V / 250 V60,000 daN Aramid Braid12×62.5/125 MMF Optical

REF 37640 3 kV / 1 kV (60,000 daN Aramid) Subsea Trencher UmbilicalSubsea Trencher 3 kV · 1.8/3 kV · 60,000 dan aramid-braided 3 kv subsea trencher umbilical

REF 37640 3 kV / 1 kV / 250 V Power, Signal, Control & 12-MMF Loose-Tube Double Contra-Helical Aramid-Braided (60,000 daN) PUR Subsea Trenching Machine Umbilical (Subsea Trencher 3 kV, 1.8/3 kV, -25 °C to +70 °C).

Water-resistant

Anti-torsion braid

EMC screen

Oil-resistant

Configuration

Order designation: REF 37640 Type A (Standard Lift)
Outer Ø ≈: 25.4 mm
Net weight ≈: 1,680 kg/km
Tensile rating ≈: 320.0 kN
Core / stranding: Class 5 tinned Cu + 316L FIMT

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: 1.8/3 kV
Operating temp.: −25…+70 °C
Min. bend radius: 12 × OD
Core / conductor: 3 kV 25mm²
Outer protection: 60,000 daN
Standard: Subsea Trencher

Typical values for this cable type, based on ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is REF 37640 right for your machine?

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: REF 37640 (ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard) featuring optical sub-cable (12×62.5/125 mmf), shielded signal pairs (4×2×0.22 mm²) and pur inner sheath & 60,000 dan aramid braid (5-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Optical Sub-Cable (12×62.5/125 MMF)	6 loose tubes (12 multimode fibres) stranded under a central PUR sub-sheath
2	Shielded Signal Pairs (4×2×0.22 mm²)	Flexible tinned Cu + XLPE + Al/PET foil & drain + individual XLPE sheath (250 V)
3	Control Triplets (6×3×1.0 mm², 1 kV)	Six triplets of extra-flexible plain copper with polyester elastomer insulation
4	3 kV Power Conductors (17×25 mm²)	17 flexible plain copper conductors with 3,000 V XLPE insulation (≤0.819 Ω/km)
5	PUR Inner Sheath & 60,000 daN Aramid Braid	Watertight core + PUR inner sheath + double contra-helical aramid braid + PUR jacket

REF 37640 — Standard Subsea & Marine Execution

Built to ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard with optical sub-cable (12×62.5/125 mmf) and pur inner sheath & 60,000 dan aramid braid

REF 37640 — Custom Drum Length & Termination Kit

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

REF 37640 — 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 ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 1.8/3 kV (ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard)
Core / conductor construction: Optical Sub-Cable (12×62.5/125 MMF) — 6 loose tubes (12 multimode fibres) stranded under a central PUR sub-sheath
Primary dielectric / buffering: Shielded Signal Pairs (4×2×0.22 mm²) — Flexible tinned Cu + XLPE + Al/PET foil & drain + individual XLPE sheath (250 V)

Thermal

Continuous operating temperature: −25…+70 °C (subsea, marine & submersible duty)
Short-circuit / peak thermal rating: Verified thermal stability per ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: PUR Inner Sheath & 60,000 daN Aramid Braid — Watertight core + PUR inner sheath + double contra-helical aramid braid + PUR jacket
Minimum bending radius: 12 × OD
Hydrostatic, tensile & crush duty: 3 kV Power Conductors (17×25 mm²) — 17 flexible plain copper conductors with 3,000 V XLPE insulation (≤0.819 Ω/km)

Resistance

Hydrostatic pressure & water blocking: Engineered for continuous submersion and hydrostatic integrity per ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard
Seawater, oil & chemical resistance: Resistant to seawater hydrolysis, hydraulic oils and abrasion per ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: ISO 13628-5 / 60,000 daN Aramid Subsea Trencher 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: REF 37640
Sheath colour & metre marking: Continuous metre-marked black outer finish (60,000 daN Aramid + PUR)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard REF 37640 subsea & marine configurations

Manufactured to ISO 13628-5 / 60,000 daN Aramid Subsea Trencher 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
REF 37640 Construction Schedule (−25…+70 °C)
REF 37640 Type A (Standard Lift)	3 × 10 mm² HV + 6×2×1.0 + 12F FIMT	Class 5 tinned Cu + 316L FIMT	25.4	1,680	320.0	380
REF 37640 Type B (Heavy Work-Class)	3 × 16 mm² HV + 8×2×1.0 + 12F FIMT	Class 5 tinned Cu + 316L FIMT	32.2	2,650	480.0	485
REF 37640 Type C (Ultra-Deep Trencher)	3 × 25 mm² HV + 12×2×1.0 + 24F FIMT	Class 5 tinned Cu + 316L FIMT	38.1	3,890	680.0	570

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 ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
3 × 10 mm² HV + 6×2×1.0 + 12F FIMT	1.91	1.8/3 kV (≤0.35 dB/km SM)	−25…+70 °C
3 × 16 mm² HV + 8×2×1.0 + 12F FIMT	1.21	1.8/3 kV (≤0.35 dB/km SM)	−25…+70 °C
3 × 25 mm² HV + 12×2×1.0 + 24F FIMT	0.78	1.8/3 kV (≤0.35 dB/km SM)	−25…+70 °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 (ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard)	DC resistance at 20 °C / optical attenuation and outer diameter within ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard)	Zero dielectric breakdown and verified insulation resistance for 1.8/3 kV rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, water-blocking & mechanical endurance qualification (ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard)	Verified submersion integrity, tensile load and thermal stability across −25…+70 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

Subsea Trencher 3 kV 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 REF 37640 Subsea Trencher 3 kV 1.8/3 kV 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

PDFREF 37640 3 kV / 1 kV (60,000 daN Aramid) Subsea Trencher Umbilical – technical datasheet3 sizes · construction, technical data, approvals XLSXREF 37640 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 REF 37640 (REF 37640 3 kV / 1 kV (60,000 daN Aramid) Subsea Trencher Umbilical)?

REF 37640 (REF 37640 3 kV / 1 kV (60,000 daN Aramid) Subsea Trencher Umbilical) is manufactured in accordance with ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard for 1.8/3 kV service over -25 °C to +70 °C. Its 5-layer construction comprises optical sub-cable (12×62.5/125 mmf), shielded signal pairs (4×2×0.22 mm²) and pur inner sheath & 60,000 dan aramid braid.

What is the minimum bending radius and operating temperature range for REF 37640?

The minimum bending radius for REF 37640 is 12 × OD across its continuous operating temperature range of -25 °C to +70 °C, ensuring mechanical and dielectric reliability in subsea, marine and submersible service.

How are the concentric layers of REF 37640 arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Optical Sub-Cable (12×62.5/125 MMF) — 6 loose tubes (12 multimode fibres) stranded under a central PUR sub-sheath; (02) Shielded Signal Pairs (4×2×0.22 mm²) — Flexible tinned Cu + XLPE + Al/PET foil & drain + individual XLPE sheath (250 V); (03) Control Triplets (6×3×1.0 mm², 1 kV) — Six triplets of extra-flexible plain copper with polyester elastomer insulation; (04) 3 kV Power Conductors (17×25 mm²) — 17 flexible plain copper conductors with 3,000 V XLPE insulation (≤0.819 Ω/km); (05) PUR Inner Sheath & 60,000 daN Aramid Braid — Watertight core + PUR inner sheath + double contra-helical aramid braid + PUR jacket.

What factory test certificates are supplied with REF 37640?

Every production drum of REF 37640 undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per ISO 13628-5 / 60,000 daN Aramid Subsea Trencher Standard, and is delivered with an EN 10204 3.1 factory test certificate.

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Your selection and application details are copied into the enquiry form below.

01Selected sizes

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02Reel & motion

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Reel typeDrum core diameter (mm)Cable length on drum (m)Travel speed (m/min)Max. accelerationCycles per hourLength and quantityAmbient temperatureExposure (outdoor, water, oil, abrasion)Destination countryEquipment and operating conditions

03Message for our engineers

REF 37640 3 kV / 1 kV (60,000 daN Aramid) Subsea Trencher Umbilical

Selected sizes:


Reel & motion:
- Reel type: 
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- Travel speed (m/min): 
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