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Product

power connection cable seriesJIS C 3410 SPYC0.6/1 kV Single-CoreNon-Magnetic Bronze Braid

SPYC LV JIS Single-Core Shipboard Power CableJIS C 3410 0.6/1 kV single-core EPR non-magnetic bronze-braided shipboard power cable

SPYC LV (JIS C 3410) Single-Core Low-Voltage Shipboard Power Cable (0.6/1 kV) engineered with a stranded tinned annealed copper conductor (1.5 to 325 mm²), 90 °C EP-rubber (EPR) insulation, non-magnetic phosphor-bronze/brass wire.

JIS C 3410 / ClassNK
IEC 60332-3-22 Cat A
Non-Mag Bronze Armour
Marine Oil & Salt Mist
Order designation
SPYC-150 (1×150 mm²)
Outer Ø ≈
25.0 mm
Weight ≈
1,920 kg/km
Conductor DC R
0.1260 Ω/km
Ampacity @ 45 °C
375 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
Japanese marine standard
Voltage rating
0.6/1 kV
3,500 V AC test voltage
Cross-section
6.0 to 325 mm²
1-core tinned Cu IEC 60228
Insulation
EP-Rubber (P)
+90 °C EPR marine dielectric
Armour ('C')
Bronze / Brass
Non-magnetic wire braid
Temperature
-25 to +90 °C
+250 °C short-circuit rating

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

Application fit

Is SPYC LV right for your machine?

High-ampacity single-core main generator, switchboard bus-tie and bow-thruster feeder cable for Japanese/Asian-built bulk carriers, LNG carriers, container ships and offshore vessels.

Offshore platform & shipboard deck trays

Suitable

Approved for fixed shipboard main propulsion, alternator-to-MSB feeders and heavy marine deck winches.

Fixed installation

Suitable

Non-magnetic copper-alloy wire braid armour prevents hysteresis and eddy-current overheating on single-core AC feeders.

Switchgear & control cabinet wiring

Suitable

Single-core flexibility allows tight bending into main switchboard (MSB) busbars and generator terminal boxes.

Energy chain / drag chain

Not suitable

Fixed shipboard power feeder; for portable marine deck equipment use DPNP/TPNP/FPNP rubber cable.

Use DPNP / TPNP / FPNP
Typical machinesCommercial Shipbuilding (Bulk, Tanker, Container)Marine Main Switchboard & Alternator FeedersBow Thruster & Cargo Pump Motor DrivesShip Repair & ClassNK / ABS / DNV RetrofitsOffshore Support Vessels & Floating Docks

Construction

Layer by layer

SPYC LV (JIS C 3410) showing stranded tinned copper conductor, separator tape, EP-rubber ('P') insulation, PVC inner sheath ('Y'), non-magnetic bronze/brass wire braid armour ('C'), and flame-retardant marine outer protective paint/sheath.

12345
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Stranded tinned annealed copper conductor ('S')Circular stranded tinned copper per JIS C 3410 / IEC 60228 Class 2 (6.0 mm² to 325 mm²)'S' = Single-core shipboard feeder conductor
2Ethylene Propylene Rubber ('P') primary insulation90 °C marine-grade EP-rubber (EPR) thermoset insulationHigh moisture and dielectric stability in humid engine rooms
3Flame-retardant Vinyl ('Y') inner sheathExtruded flame-retardant marine PVC bedding sheathSeals core against oil and bilge moisture
4Non-magnetic phosphor-bronze/brass wire braid ('C')Braided non-magnetic copper-alloy (bronze/brass) wire armour (or galvanized steel only on DC circuits)Prevents magnetic eddy-current loop heating on single-core AC runs
5Protective marine paint or vinyl oversheath ('-Y')Grey anti-corrosive marine coating over braid (SPYC) or extruded PVC outer jacket (SPYCY)IEC 60332-3-22 Cat A bunched flame retardant

SPYC-60 to SPYC-325 (0.6/1 kV Painted Braid)

Standard JIS C 3410 single-core EPR cable with painted non-magnetic bronze braid armour

SPYCY-60 to SPYCY-325 (0.6/1 kV PVC Oversheath)

SPYC with extruded flame-retardant Black/Grey PVC outer sheath over the bronze wire braid

Technical data

Ratings & operating limits

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

Electrical

Rated voltage (Uo/U)
0.6 / 1 kV AC (600 / 1000 V)
AC dielectric test voltage
3,500 V AC rms for 5 minutes
Max. DC resistance @ 20 °C
0.391 Ω/km (50) · 0.195 Ω/km (95) · 0.126 Ω/km (150) · 0.0762 Ω/km (240)
Insulation resistance @ 20 °C
≥ 300 to 600 MΩ·km

Thermal

Max. conductor operating temp.
+90 °C continuous (EP-rubber insulation)
Short-circuit temperature
+250 °C (max. 5 s)
Min. installation ambient
-25 °C fixed marine service

Mechanical

Min. bend radius
6 × OD (overall diameter ≤ 25 mm) · 8 × OD (> 25 mm)
Armour wire metallurgy
Non-magnetic copper alloy (phosphor bronze / brass) for AC
Trefoil / flat cleat spacing
Designed for 3 × 1C trefoil or flat spaced cable ladder cleats

Resistance

Bunched flame test
IEC 60332-3-22 Category A
Oil & salt mist resistance
Resistant to marine fuel oil, lube oil & engine-room bilge
Vibration resistance
Braided armour absorbs ship hull and diesel engine vibration

Reference standards

Governing standard
JIS C 3410 & IEC 60092-350 / 60092-353
Marine class societies
ClassNK, ABS, Lloyd's Register (LR), DNV, BV, CCS
RoHS & Asbestos-free
IMO SOLAS asbestos-free & RoHS 2 compliant

Identification

JIS code breakdown
S=Single-core · P=EPR · Y=Vinyl sheath · C=Wire braid armour
Outer finish colour
Grey painted armour (SPYC) or Black/Grey PVC (SPYCY)
Customs tariff (HS)
8544.4993

Sizes

6 standard SPYC LV (0.6/1 kV) single-core shipboard feeder sizes

Nominal cross-section, overall diameter, weight, DC resistance and 45 °C marine ambient ampacity.

Dimensions, weight & 45 °C ampacity
JIS designationConductor sizeOuter Ø ≈
mm		Weight ≈
kg/km		Max. DC R
Ω/km		Ampacity 45°C
A		Enquiry
JIS C 3410 SPYC Single-Core 0.6/1 kV Shipboard Power Cables
SPYC-50 (1×50 mm²)1 × 50 mm² Tinned Cu16.57400.3910180
SPYC-95 (1×95 mm²)1 × 95 mm² Tinned Cu21.01,2900.1950280
SPYC-150 (1×150 mm²)1 × 150 mm² Tinned Cu25.01,9200.1260375
SPYC-185 (1×185 mm²)1 × 185 mm² Tinned Cu27.52,3500.1000430
SPYC-240 (1×240 mm²)1 × 240 mm² Tinned Cu30.83,0200.0762515
SPYC-325 (1×325 mm²)1 × 325 mm² Tinned Cu35.04,0100.0565625
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Continuous current ratings are based on +45 °C shipboard ambient and +90 °C EPR conductor temperature per JIS C 3410 / IEC 60092-352.

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 DC resistance testZero breakdown for 5 min and DC R within JIS C 3410 limitsEvery manufactured drum length
Sample tests
EPR hot-set & +135 °C thermal aging testHot-set elongation ≤ 175 % and ≥ 75 % tensile retentionPer production batch
IEC 60332-3-22 Category A vertical bunched flame testChar height ≤ 2.5 m under 40 min ribbon burner exposureClass society type approval

Inspection certificate

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

Product approvals

JIS C 3410 & IEC 60092-353ClassNK / ABS / LR / DNV / CCSIMO SOLAS Asbestos-Free

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX JIS C 3410 SPYC 0.6/1kV <SIZE> NK
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

PDFSPYC LV JIS Single-Core Shipboard Power Cable – technical datasheet6 sizes · construction, technical data, approvalsXLSXSPYC LV 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.

Why must single-core AC shipboard cables (SPYC) use non-magnetic bronze/brass wire braid armour instead of galvanized steel?
In a single-core AC feeder carrying 200–600 A, an alternating magnetic field surrounds the conductor. If magnetic steel wire armour were used around a single core, magnetic hysteresis and eddy currents would overheat the armour and drop voltage. JIS C 3410 specifies non-magnetic copper-alloy (phosphor-bronze or brass) wire braid on AC SPYC cables.
How do the JIS C 3410 core-count prefixes S-, D-, T- and F- work?
'S' = Single-core (SPYC, 1C); 'D' = Double-core (DPYC, 2C); 'T' = Triple-core (TPYC, 3C); and 'F' = Four-core (FPYC, 4C).
What is the difference between SPYC and SPYCY?
Standard SPYC has a protective marine paint coating applied directly over the outer wire braid armour, whereas SPYCY adds an extruded PVC outer sheath ('-Y') over the wire braid for wet weather decks and corrosive spaces.
When should we specify SPYC / TPYC MV instead of SPYC LV?
Use SPYC LV for 440 V / 690 V shipboard systems (rated 0.6/1 kV). For 3.3 kV, 6.6 kV or 11 kV marine propulsion and bow-thruster feeders with semi-conductive and metallic core screens, specify SPYC / TPYC MV.

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SPYC LV JIS Single-Core Shipboard Power Cable

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