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Product

28-pair 40 Ω individually shielded dynamic ship sonar cable40 ± 5 Ω (≤180 pF/m)28×2×0.34 mm² Spun-ShieldDynamic Ship Sonar PUR

REF 57942 (Multipaires Sonar) 600 V 28×2×0.34mm² (40 Ω) Sonar Cable40 Ω Naval Sonar · 600 V · 28-pair 40 ω individually shielded dynamic ship sonar cable

REF 57942 (Multipaires Sonar) 600 V 28×2×0.34 mm² (40-Ohm) Individually Spun-Copper-Shielded & Jacketed Pairs with Overall Copper Braid PUR Ship Sonar Dynamic Cable (40 Ω Naval Sonar, 600 V, -30 °C to +70 °C, min. bend radius 10 × OD).

Water-resistant

EMC screen

Low-EMC design

Anti-torsion braid

Configuration

Order designation: REF 57942 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…+70 °C
Min. bend radius: 10 × OD
Core / conductor: 28×2×0.34 mm²
Outer protection: Overall Cu Braid
Standard: 40 Ω Naval Sonar

Typical values for this cable type, based on Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard — confirmed in the datasheet and quotation for your order.

Application fit

Is REF 57942 (MULTIPAIRES SONAR) 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 57942 (MULTIPAIRES SONAR) (Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard) featuring 40 ω sonar twisted pairs (28×2×0.34 mm²), individual spun-copper shield & jacket and dynamic polyurethane sheath (ø25 ± 1 mm) (5-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	40 Ω Sonar Twisted Pairs (28×2×0.34 mm²)	Extra-flexible tinned copper + 600 V polyester elastomer (40±5 Ω, ≤180 pF/m)
2	Individual Spun-Copper Shield & Jacket	Each of the 28 pairs has a tinned copper spun shield and polyester elastomer sheath
3	Concentric 28-Pair Lay-Up (4 + 10 + 14)	Three concentric layers of individually jacketed coaxial-grade balanced pairs
4	Overall Tinned Copper Braid Shield	High-coverage overall tinned copper wire braid for sonar receiver EMC isolation
5	Dynamic Polyurethane Sheath (Ø25 ± 1 mm)	Black extra-flexible polyurethane (PUR) outer jacket (–30 °C to +70 °C, 740 g/m)

REF 57942 (MULTIPAIRES SONAR) — Standard Subsea & Marine Execution

Built to Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard with 40 ω sonar twisted pairs (28×2×0.34 mm²) and dynamic polyurethane sheath (ø25 ± 1 mm)

REF 57942 (MULTIPAIRES SONAR) — Custom Drum Length & Termination Kit

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

REF 57942 (MULTIPAIRES SONAR) — 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 Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / transmission duty: 600 V (Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard)
Core / conductor construction: 40 Ω Sonar Twisted Pairs (28×2×0.34 mm²) — Extra-flexible tinned copper + 600 V polyester elastomer (40±5 Ω, ≤180 pF/m)
Primary dielectric / buffering: Individual Spun-Copper Shield & Jacket — Each of the 28 pairs has a tinned copper spun shield and polyester elastomer sheath

Thermal

Continuous operating temperature: −30…+70 °C (subsea, marine & submersible duty)
Short-circuit / peak thermal rating: Verified thermal stability per Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard
Storage & transport temperature: −40…+80 °C on export wooden/steel drum

Mechanical

Outer protection / armouring: Dynamic Polyurethane Sheath (Ø25 ± 1 mm) — Black extra-flexible polyurethane (PUR) outer jacket (–30 °C to +70 °C, 740 g/m)
Minimum bending radius: 10 × OD
Hydrostatic, tensile & crush duty: Overall Tinned Copper Braid Shield — High-coverage overall tinned copper wire braid for sonar receiver EMC isolation

Resistance

Hydrostatic pressure & water blocking: Engineered for continuous submersion and hydrostatic integrity per Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard
Seawater, oil & chemical resistance: Resistant to seawater hydrolysis, hydraulic oils and abrasion per Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing standard: Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar 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 57942 (MULTIPAIRES SONAR)
Sheath colour & metre marking: Continuous metre-marked black outer finish (Overall Cu Braid + PUR)
Customs tariff (HS): 8544.49 / 8544.60 / 8544.70

Sizes

3 standard REF 57942 (MULTIPAIRES SONAR) subsea & marine configurations

Manufactured to Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar 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 57942 (MULTIPAIRES SONAR) Construction Schedule (−30…+70 °C)
REF 57942 Config A (Compact)	4×2×24 AWG + 2×18 AWG (or 4C)	Stranded tinned Cu (IEC 60228 / ASTM)	10.4	155	4.5	85
REF 57942 Config B (Standard)	4×2×20 AWG + 4×16 AWG (or 8C)	Stranded tinned Cu (IEC 60228 / ASTM)	13.3	265	9.6	110
REF 57942 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 Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar 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…+70 °C
4×2×20 AWG + 4×16 AWG (or 8C)	10.70	600 V (45–100 Ω data)	−30…+70 °C
8×2×20 AWG + 4×12 AWG (or 12C)	5.40	600 V (High-Power Hybrid)	−30…+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 (Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard)	DC resistance at 20 °C / optical attenuation and outer diameter within Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard tolerances	Every manufactured drum length
High-voltage dielectric & insulation resistance test (Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar 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 (Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard)	Verified submersion integrity, tensile load and thermal stability across −30…+70 °C	Type qualification & periodic lot audit

Inspection certificate

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

Product approvals

40 Ω Naval Sonar 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 57942 (MULTIPAIRES SONAR) 40 Ω Naval Sonar 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

PDFREF 57942 (Multipaires Sonar) 600 V 28×2×0.34mm² (40 Ω) Sonar Cable – technical datasheet3 sizes · construction, technical data, approvals XLSXREF 57942 (MULTIPAIRES SONAR) 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 57942 (MULTIPAIRES SONAR) (REF 57942 (Multipaires Sonar) 600 V 28×2×0.34mm² (40 Ω) Sonar Cable)?

REF 57942 (MULTIPAIRES SONAR) (REF 57942 (Multipaires Sonar) 600 V 28×2×0.34mm² (40 Ω) Sonar Cable) is manufactured in accordance with Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar Standard for 600 V service over -30 °C to +70 °C. Its 5-layer construction comprises 40 ω sonar twisted pairs (28×2×0.34 mm²), individual spun-copper shield & jacket and dynamic polyurethane sheath (ø25 ± 1 mm).

What is the minimum bending radius and operating temperature range for REF 57942 (MULTIPAIRES SONAR)?

The minimum bending radius for REF 57942 (MULTIPAIRES SONAR) is 10 × OD across its continuous operating temperature range of -30 °C to +70 °C, ensuring mechanical and dielectric reliability in subsea, marine and submersible service.

How are the concentric layers of REF 57942 (MULTIPAIRES SONAR) arranged from inside to outside?

From inside to outside, the construction sequence is: (01) 40 Ω Sonar Twisted Pairs (28×2×0.34 mm²) — Extra-flexible tinned copper + 600 V polyester elastomer (40±5 Ω, ≤180 pF/m); (02) Individual Spun-Copper Shield & Jacket — Each of the 28 pairs has a tinned copper spun shield and polyester elastomer sheath; (03) Concentric 28-Pair Lay-Up (4 + 10 + 14) — Three concentric layers of individually jacketed coaxial-grade balanced pairs; (04) Overall Tinned Copper Braid Shield — High-coverage overall tinned copper wire braid for sonar receiver EMC isolation; (05) Dynamic Polyurethane Sheath (Ø25 ± 1 mm) — Black extra-flexible polyurethane (PUR) outer jacket (–30 °C to +70 °C, 740 g/m).

What factory test certificates are supplied with REF 57942 (MULTIPAIRES SONAR)?

Every production drum of REF 57942 (MULTIPAIRES SONAR) undergoes routine conductor resistance/continuity, high-voltage dielectric and dimensional testing per Naval 40 ± 5 Ω Controlled-Impedance Dynamic Sonar 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 57942 (Multipaires Sonar) 600 V 28×2×0.34mm² (40 Ω) Sonar Cable

Selected sizes:


Reel & motion:
- Reel type: 
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- Travel speed (m/min): 
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- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
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