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Product

power connection cable seriesJIS C 3410 DPNP/TPNP/FPNP0.6/1 kV Flexible CabtyreEPR + Neoprene (PCP)

DPNP / TPNP / FPNP JIS Flexible Shipboard Rubber CableJIS C 3410 0.6/1 kV 2-, 3- & 4-core flexible EPR/neoprene portable shipboard cable

DPNP (2-Core), TPNP (3-Core) and FPNP (4-Core) JIS C 3410 Flexible Shipboard Rubber Cable (0.6/1 kV) constructed with Class 5 flexible tinned copper conductors, 90 °C EP-rubber ('P') insulation, cabtyre fabric reinforcement and.

Flexible Portable Deck Duty
NP Polychloroprene Jacket
Saltwater & Weather Deck
JIS C 3410 / ClassNK
Order designation
FPNP-10
Outer Ø ≈
21.8 mm
Weight ≈
780 kg/km
Conductor DC R
1.95 Ω/km
Ampacity @ 45 °C
51 A
All sizes (6)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Standard
JIS C 3410
Flexible shipboard cabtyre
Voltage rating
0.6/1 kV
3,500 V AC test voltage
Configurations
2C / 3C / 4C
DPNP (2), TPNP (3), FPNP (4)
Cross-sections
1.5 to 95 mm²
Flexible Class 5 tinned Cu
Insul. / Sheath
EPR / Neoprene
'P' EP-Rubber + 'NP' PCP
Temperature
-30 to +90 °C
Weather-deck & engine room

Typical values for this cable type, based on JIS C 3410 / IEC 60092-353 / ClassNK — confirmed in the datasheet and quotation for your order.

Application fit

Is DPNP / TPNP / FPNP right for your machine?

Heavy-duty flexible marine cabtyre cable for portable submersible bilge/cargo pumps, weather-deck maintenance tools, gangway lighting, searchlights and vibration-isolated shipboard machinery.

Trailing & towing

Suitable

Heavy polychloroprene (NP) rubber sheath resists dragging across steel non-skid weather decks, hatch coamings and drydocks.

Offshore platform & shipboard deck trays

Suitable

Withstands salt spray, UV sunlight, bunker oil splashes and -30 °C winter deck conditions.

Motor stator, traction & converter leads

Suitable

Absorbs multi-axis vibration on resiliently mounted marine compressors, fans and deck cranes.

Energy chain / drag chain

With conditions

Suitable for festoons and portable reels; for high-speed automated drag chains use PUR drag-chain cable.

Typical machinesShipboard Weather-Deck Portable EquipmentSubmersible Salvage, Bilge & Ballast PumpsShipyard Drydock & Voyaging Repair PowerMarine Searchlights, Davits & Accommodation LaddersResiliently Mounted Engine-Room Auxiliaries

Construction

Layer by layer

DPNP / TPNP / FPNP (JIS C 3410) showing flexible Class 5 tinned copper conductors, 90 °C EP-rubber ('P') core insulation, rubber/jute cabtyre cradle filler, textile reinforcing tape, and heavy-duty black polychloroprene ('NP') outer sheath.

1234
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Flexible Class 5 tinned annealed copper conductorsFine-stranded tinned annealed copper per JIS C 3410 / IEC 60228 Class 5 (1.5 mm² to 95 mm²)Tinned wires resist marine sulphide and salt corrosion
2Ethylene Propylene Rubber ('P') core insulation90 °C marine EP-rubber (EPR) thermoset insulation with colour/number core codingRemains flexible from -30 °C to +90 °C
3Cabtyre elastomeric filler & rubberized cloth tapeVulcanized rubber interstitial filler and proofed textile binder tapeAbsorbs deck impact and maintains round gland-sealing profile
4Polychloroprene ('NP' Neoprene) heavy-duty jacketCross-linked Polychloroprene (PCP / Neoprene) thermoset outer sheath (Black)Oil, flame (IEC 60332-1-2), ozone and tear resistant

DPNP (2-Core · 1.5 to 35 mm²)

2-core flexible EPR/neoprene shipboard cable for single-phase deck lamps, heaters and DC tools

TPNP (3-Core · 1.5 to 95 mm²)

3-core flexible EPR/neoprene shipboard cable for 440 V 3-phase delta marine deck motors and pumps

FPNP (4-Core · 1.5 to 95 mm²)

4-core (3 phases + earth) flexible EPR/neoprene cable for portable welders, pumps and reefers

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on JIS C 3410 / IEC 60092-353 / ClassNK. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage (Uo/U)
0.6 / 1 kV AC
AC dielectric test
3,500 V AC rms for 5 minutes
Max. DC resistance @ 20 °C
8.06 Ω/km (2.5) · 3.37 Ω/km (6) · 1.24 Ω/km (16) · 0.565 Ω/km (35)
Insulation resistance
≥ 400 to 600 MΩ·km @ 20 °C

Thermal

Max. conductor operating temp.
+90 °C continuous
Flexing / fixed ambient temp.
-30 °C to +60 °C ambient
Short-circuit temperature
+250 °C (5 s)

Mechanical

Min. bend radius
6 × OD (free flexing & portable reeling) · 4 × OD (fixed)
Jacket tensile & elongation
≥ 10.0 N/mm² tensile strength, ≥ 300 % elongation at break
Impact & crush resistance
Vulcanized cabtyre structure resists hatch and foot traffic

Resistance

Hot oil immersion test
100 °C × 24 h mineral oil immersion per JIS C 3410
Flame retardancy
IEC 60332-1-2 vertical flame self-extinguishing
Weather & seawater resist.
Polychloroprene (NP) resists UV, ozone & continuous salt spray

Reference standards

Governing standard
JIS C 3410 (Flexible Cables for Electrical Appliances on Shipboard)
Class approvals
ClassNK, ABS, LR, DNV, BV, KR, CCS
RoHS & SOLAS
IMO SOLAS asbestos-free & RoHS 2 compliant

Identification

JIS code breakdown
D/T/F = 2/3/4 cores · P = EPR insulation · NP = Neoprene sheath
Core identification
2C: Black, White · 3C: Black, White, Red · 4C: Black, White, Red, Green
Customs tariff (HS)
8544.4993

Sizes

6 standard DPNP, TPNP & FPNP (0.6/1 kV) flexible shipboard configurations

Nominal core count, cross-section, overall diameter, weight and 45 °C marine ampacity.

Dimensions, weight & 45 °C ampacity
JIS designationCores × cross-sectionOuter Ø ≈
mm		Weight ≈
kg/km		Max. DC R
Ω/km		Ampacity 45°C
A		Enquiry
JIS C 3410 0.6/1 kV Flexible EPR/Neoprene Shipboard Cables
DPNP-2.52 × 2.5 mm² Flexible12.62158.0626
TPNP-2.53 × 2.5 mm² Flexible13.42558.0622
FPNP-44 × 4.0 mm² Flexible16.23955.0929
FPNP-104 × 10 mm² Flexible21.87801.9551
FPNP-254 × 25 mm² Flexible29.51,5600.7989
FPNP-504 × 50 mm² Flexible38.02,7900.39135
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • In 4-core FPNP cables, the fourth (Green) core serves as the protective earthing conductor for portable metallic equipment.

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.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
100 % 3.5 kV AC dielectric, IR & conductor resistance testZero breakdown for 5 min and DC R within JIS C 3410 Class 5 limitsEvery manufactured drum length
Sample tests
Neoprene (NP) hot mineral oil immersion & tear testRetains ≥ 60 % tensile/elongation after 100 °C × 24 h oil bathPer production lot
Dynamic flexing & IEC 60332-1-2 flame propagation testNo strand breakage after flexing and self-extinguishing burnClass society type approval

Inspection certificate

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

Product approvals

JIS C 3410 Portable MarineClassNK / ABS / LR / DNVIEC 60332-1-2 Flame Retardant

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX JIS C 3410 DPNP / TPNP / FPNP 0.6/1kV
Delivery form
Fumigated wooden drums or steel export reels
Standard lengths
500 m · 1000 m (or custom cut lengths)
MOQ
100 m (standard) · 500 m (custom)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFDPNP / TPNP / FPNP JIS Flexible Shipboard Rubber Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSXDPNP / TPNP / FPNP spec data (Excel)All 6 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

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

How do DPNP / TPNP / FPNP differ from European H07RN-F rubber cables on ships?
While H07RN-F is rated 450/750 V with bare copper conductors and 60–85 °C insulation, JIS C 3410 DPNP/TPNP/FPNP are true 0.6/1 kV (1,000 V) marine-certified cables with tinned copper conductors (preventing saltwater verdigris), +90 °C EPR insulation (higher ampacity at 45 °C engine-room ambient), and ClassNK/IACS shipboard certification.
Why are 3-core (TPNP) and 4-core (FPNP) both widely used on 440 V shipboard decks?
Shipboard 440 V AC distribution is a 3-phase 3-wire insulated-neutral system: fixed 3-phase motors use 3-core TPNP (with separate hull bonding), whereas portable 3-phase deck equipment (welders, submersible pumps, reefer plugs) uses 4-core FPNP so the 4th (Green) core grounds the portable enclosure through the plug.
Can FPNP be used on submerged portable bilge and salvage pumps?
Yes. The vulcanized polychloroprene (NP) outer jacket and EPR insulation withstand shallow water immersion, oily bilge water and salt spray.
When should we use SPYC instead of DPNP/TPNP/FPNP?
Use DPNP/TPNP/FPNP for flexible, unarmoured portable leads and vibration loops. For permanent fixed wiring clipped to bulkheads and cable ladders, use wire-braid armoured SPYC / DPYC / TPYC.

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DPNP / TPNP / FPNP JIS Flexible Shipboard Rubber Cable

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