1 / 5

Product

subsea umbilical, ROV tether & oceanographic tow cable 4C Ocean Bottom Cable (OBC)48–300 V DC (-30 to +80 °C)Abrasion-Resistant Orange PUR Jacket

48–300 V DC 4-Component (4C: 3-Axis Geophone + Hydrophone) Aramid Ocean Bottom Seismic OBC Cable4C Ocean Bottom Cable (OBC) — 48–300 V DC — -30 to +80 °C Subsea & Offshore Cable

48–300 V DC 4-Component (4C: 3-Axis Geophone + Hydrophone) Aramid Ocean Bottom Seismic OBC Cable (4C Ocean Bottom Cable (OBC)) engineered for 48–300 V DC service across -30 to +80 °C (min. bend radius 10 × OD).

Water-resistant

EMC screen

Oil-resistant

Approved

Configuration

Order designation: 4C OBC Seismic Array 4–12F EOM/Sub
Outer Ø ≈: 8.2 mm
Net weight ≈: 260 kg/km
Tensile rating ≈: 48.0 kN
Core / stranding: Laser-welded SS FIMT + Steel/Aramid Armour

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: 48–300 V DC
Operating temp.: −30…+80 °C
Min. bend radius: 10 × OD
Core / conductor: Single-Mode Opti
Outer protection: Abrasion-Resista
Standard: 4C Ocean Bottom

Typical values for this cable type, based on 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification — confirmed in the datasheet and quotation for your order.

Application fit

Is 4C OBC Seismic Array right for your machine?

Immersion & wet locations

Suitable

Hydrolysis-resistant polyurethane (PUR) or HDPE jacket and water-blocked core withstand continuous deepwater hydrostatic immersion.

Vertical / spreader reel

Suitable

Torque-balanced contra-helical steel wire armour or high-modulus aramid strength member supports dynamic winch deployment without hockling

Trailing & towing

Suitable

Abrasion-resistant outer sheath and high working-load strength elements handle dynamic marine towing, buoy mooring and ROV excursion.

Offshore platform & shipboard deck trays

Suitable

UV-stabilised, oil- and seawater-resistant construction withstands A-frame sheaves, traction winches and open research-vessel decks.

Energy chain / drag chain

Not suitable

Subsea umbilical, ROV tether and towed array cables are not designed for indoor factory automation drag chains.

Use M23 Servo Assembly

Typical machinesUnderwater & Ocean ExplorationOceanographic CTD, ADCP & Deep-Tow SurveysWork-Class & Observation ROV / AUV SystemsSide-Scan Sonar, SAS & Towed Hydrophone ArraysMarine 2D/3D/UHR Seismic Streamers & OBC

Construction

Layer by layer

Shown: 4C OBC Seismic Array (4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification) featuring single-mode optical & 4c digital bus, 48-300 v dc tinned copper power buses and abrasion-resistant orange pur jacket (4-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Single-Mode Optical & 4C Digital Bus	Central SMF tube + screened digital pairs for 3C geophone & 1C hydrophone
2	48-300 V DC Tinned Copper Power Buses	High-pressure PE/PP insulated power conductors feeding seabed nodes
3	Water-Blocked Core & Aramid/Steel Armour	Full water-blocking compound + high-tensile seabed retrieval armour
4	Abrasion-Resistant Orange PUR Jacket	Cut- and rock-abrasion-resistant polyurethane outer sheath

4C OBC Seismic Array — Standard Subsea & Offshore Execution

Built to 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification with single-mode optical & 4c digital bus and abrasion-resistant orange pur jacket

4C OBC Seismic Array — Custom Continuous Winch / Reel Length

Available in custom continuous subsea winch, tow or seabed lengths with water-blocked terminations

4C OBC Seismic Array — Hydrostatic, Tensile & Routine Certified

Supplied with EN 10204 3.1 routine dielectric, optical OTDR / DC resistance & tensile test report

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 48–300 V DC (4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification)
Core / conductor construction: Single-Mode Optical & 4C Digital Bus — Central SMF tube + screened digital pairs for 3C geophone & 1C hydrophone
Primary dielectric / buffering: 48-300 V DC Tinned Copper Power Buses — High-pressure PE/PP insulated power conductors feeding seabed nodes

Thermal

Continuous operating temperature: −30…+80 °C (subsea & offshore duty)
Hydrostatic & thermal stability: Verified thermal and hydrostatic stability per 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification
Storage & transport temperature: −40…+80 °C on export wooden/steel winch reel

Mechanical

Outer protection / armouring: Abrasion-Resistant Orange PUR Jacket — Cut- and rock-abrasion-resistant polyurethane outer sheath
Minimum bending radius: 10 × OD
Armour, strength member & mechanical duty: Water-Blocked Core & Aramid/Steel Armour — Full water-blocking compound + high-tensile seabed retrieval armour

Resistance

Seawater, hydrostatic & hydrolysis resistance: Engineered for continuous seawater immersion, pressure cycling and hydrolysis resistance per 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification
Oil, drilling mud & abrasion resistance: Resistant to marine hydraulic oils, salt mist, winch sheave wear and seabed abrasion per 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification
Environmental & test standards: IEC 60228 / IEC 60794 / ITU-T G.972 / IEEE 1580 / EN 10204
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: 4C OBC Seismic Array
Sheath colour & metre marking: Continuous metre-marked black outer finish (Abrasion-Resista)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard 4C OBC Seismic Array subsea & offshore configurations

Manufactured to 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification for subsea, oceanographic, ROV, seismic and offshore applications.

Dimensions, tensile load & weights
Order designation	Configuration	Core / stranding	Outer Ø ≈ mm	Net weight ≈ kg/km	Breaking / tensile kN ≈	Min. bend R mm
4C OBC Seismic Array Construction Schedule (−30…+80 °C)
4C OBC Seismic Array 4–12F EOM/Sub	4–12 × ITU-T G.652D / G.654E SM (+ Power)	Laser-welded SS FIMT + Steel/Aramid Armour	8.2	260	48.0	125
4C OBC Seismic Array 24–48F EOM/Sub	24–48 × ITU-T G.652D / G.654E SM (+ Power)	Laser-welded SS FIMT + Contra-Helical Steel	17.5	680	120.0	260
4C OBC Seismic Array 96–192F Trunk	96–192 × ITU-T G.654E / G.652D Submarine	SS Tube + Steel Vault + Cu Tube + DA Armour	28.0	1,650	300.0	420

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 breaking loads and continuous winch/seabed lengths available per 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification.

Electrical, optical & thermal parameters
Configuration	Max. DC R₂₀ / Atten. Ω/km or dB/km	Rating / Impedance	Operating temp.
4–12 × ITU-T G.652D / G.654E SM (+ Power)	0.35	≤0.35 dB/km @ 1310 nm	−30…+80 °C
24–48 × ITU-T G.652D / G.654E SM (+ Power)	0.21	≤0.21 dB/km @ 1550 nm	−30…+80 °C
96–192 × ITU-T G.654E / G.652D Submarine	0.18	≤0.18 dB/km @ 1550 nm	−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, optical OTDR continuity & dimensional verification (4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification)	DC resistance at 20 °C / optical attenuation and outer diameter within 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification)	Zero dielectric breakdown and verified insulation resistance for 48–300 V DC rating	Every manufactured drum length
Sample tests
Hydrostatic pressure, tensile breaking load & water-blocking qualification (4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification)	Verified subsea pressure integrity, torque-balanced tensile performance 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

4C Ocean Bottom Cable (OBC) 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 4C OBC Seismic Array 4C Ocean Bottom Cable (OBC) 48–300 V DC CE

Delivery form: Heavy-duty export fumigated wooden drums, steel oceanographic winch reels or submarine turntables
Standard lengths: 500 m, 1,000 m, 3,000 m, 6,000 m or custom continuous subsea lengths
MOQ: 100 m (standard configurations) · 500 m (custom subsea builds)
Lead time: 2–6 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDF48–300 V DC 4-Component (4C: 3-Axis Geophone + Hydrophone) Aramid Ocea – technical datasheet3 sizes · construction, technical data, approvals XLSX4C OBC Seismic Array spec data (Excel)All 3 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-26
Updated: 2026-10-26

FAQ

Questions engineers ask first

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

What governing standard and construction define 4C OBC Seismic Array (48–300 V DC 4-Component (4C: 3-Axis Geophone + Hydrophone) Aramid Ocean Bottom Seismic OBC Cable)?

4C OBC Seismic Array (48–300 V DC 4-Component (4C: 3-Axis Geophone + Hydrophone) Aramid Ocean Bottom Seismic OBC Cable) is manufactured in accordance with 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification for 48–300 V DC service over -30 to +80 °C. Its 4-layer construction comprises single-mode optical & 4c digital bus, 48-300 v dc tinned copper power buses and abrasion-resistant orange pur jacket.

What is the minimum bending radius and operating temperature range for 4C OBC Seismic Array?

The minimum bending radius for 4C OBC Seismic Array is 10 × OD across its continuous operating temperature range of -30 to +80 °C, ensuring mechanical, hydrostatic and dielectric reliability in subsea and offshore service.

How are the concentric layers of 4C OBC Seismic Array arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Single-Mode Optical & 4C Digital Bus — Central SMF tube + screened digital pairs for 3C geophone & 1C hydrophone; (02) 48-300 V DC Tinned Copper Power Buses — High-pressure PE/PP insulated power conductors feeding seabed nodes; (03) Water-Blocked Core & Aramid/Steel Armour — Full water-blocking compound + high-tensile seabed retrieval armour; (04) Abrasion-Resistant Orange PUR Jacket — Cut- and rock-abrasion-resistant polyurethane outer sheath.

What factory test certificates are supplied with 4C OBC Seismic Array?

Every production drum of 4C OBC Seismic Array undergoes routine conductor resistance/OTDR continuity, high-voltage dielectric and dimensional testing per 4-Component (4C) Ocean Bottom Seismic Optical + Power + Aramid PUR Array Specification, and is delivered with an EN 10204 3.1 factory test certificate.

Request a quote

Get an engineering quote for 4C OBC Seismic Array

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

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

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

4C OBC Seismic Array 48–300 V DC 4-Component (4C: 3-Axis Geophone + Hydrophone) Aramid Ocean Bottom Seismic OBC Cable

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:

Send via WhatsApp