Subsea umbilical cables
Armoured and neutrally buoyant electro-optical umbilicals, ROV tethers, diver umbilicals, seismic airgun lines and underwater tow cables for subsea equipment and offshore intervention.
How does the cable move?
Pick one or more duties — the list below updates.
11 subsea umbilical cables
ROV, tether & diver umbilicals
Main-lift ROV umbilicals, neutrally buoyant tethers, diver life-support lines and workover umbilicals.
4 cables
Subsea tow, seismic & trencher
Armoured underwater tow cables, seismic airgun umbilicals and heavy subsea trencher power cables.
7 cables
Choosing subsea umbilical cables
Four things decide most selections. Our engineers check the rest against your application.
Application and movement duty
- Define whether the cable runs in a fixed tray, energy chain, festoon loop, reel or trailing route.
- Match travel speed, bend radius and tensile load to the mechanical construction.
- Select a support element or armour when the cable carries suspended weight or external crush loads.
Voltage class and core layout
- Match the rated voltage U0/U to the supply system and earthing arrangement.
- Specify phase cross-sections, protective earth, pilot cores or control pairs required by the machine.
- Include copper braid, tape or semiconductive screens where EMC or electric-field control is needed.
Operating environment and sheath
- Choose rubber, PUR, LSZH, PVC, fluoropolymer or silicone sheaths for the thermal and chemical exposure.
- Verify oil, UV, water immersion, cold-flex or circuit-integrity ratings against site conditions.
- Check outer diameter and gland compatibility at both terminations.
Standard and documentation
- Confirm the governing standard family required by the project specification.
- Verify conductor class, colour code or core numbering for the destination region.
- Include operating duty and cable length in your enquiry so we can confirm the build.
Questions buyers ask
Not covered here? Send your drawing and an engineer replies within 2 business hours.
Ask on WhatsAppHow do I select the right subsea umbilical cable from this range?
Start by filtering the list by movement duty, voltage band and sheath material. Compare how each subsea umbilical cable is constructed—conductor flexibility, insulation compound, screening and outer jacket—against your machine's bending radius, travel speed and ambient temperature. Open the product page or datasheet to check core counts, cross-sections and outer diameters before sending your enquiry.
When should subsea umbilical cables include metallic screening or armour?
Specify a copper braid or foil screen when subsea umbilical cables run near variable-frequency drives, carry analogue or fieldbus signals, or require medium-voltage electric-field control. Choose steel wire braid or armour when the installation faces rock fall, crushing loads or high pulling tension in roadways, decks or subsea routes.
Which outer sheath compound suits harsh industrial environments?
Heavy-duty rubber (PCP or CPE) provides balanced mechanical toughness, weather resistance and thermal stability. Polyurethane (PUR) resists cuts, abrasion and mineral oils on fast-moving chains, reels and trolleys. Halogen-free LSZH compounds reduce smoke and acid gas in tunnels, ships and enclosed buildings, while fluoropolymers and silicone handle extreme heat.
What details should I include in an RFQ for subsea umbilical cables?
Include the model designation or governing standard, rated voltage, number of cores and conductor cross-sections, along with the installation method, minimum bend radius, ambient temperature range and required delivery lengths. If you are replacing an existing cable on a machine, share the sheath marking so we can match the specification.
Engineering reference
Background on how subsea umbilical cables are built, rated and specified.
Read the full reference
Subsea umbilical cables cover industrial constructions engineered for reliable electrical transmission under defined mechanical, thermal and environmental stresses. Selecting the right build requires matching conductor stranding, insulation system, screening and outer sheath compound to the actual installation route rather than relying on nominal cross-section alone.
Across the TEBAOFLEX subsea umbilical cables portfolio, models are grouped into functional families so engineers can filter by duty, voltage band, standard family and jacket compound. Each construction addresses a specific balance of flexibility, dielectric strength, electromagnetic compatibility and resistance to oil, water, UV radiation or flame propagation.
Before finalizing a specification, verify the governing national or international standard, operating voltage U0/U, ambient temperature range and minimum bending radius in fixed or moving duty. Where cables interface with connectors, glands or motor terminal boxes, check nominal outer diameter and screen termination geometry early.
When submitting an RFQ for subsea umbilical cables, specify the model designation, core count and cross-sections, system voltage, installation method, environmental exposure and required drum or assembly lengths so our engineering team can confirm the exact construction and datasheet.