0.6/1 kV Halogen-Free Shipboard Switchboard Wire
Halogen-free single-core internal wiring cables for marine switchboards, bridge consoles, PLC cabinets and high-temperature terminal boxes. Covers 0.6/1 (1.2) kV IEC 60092-350 Class 5 polyolefin switchboard wire (1.5–120 mm²), EN 50306-2 thin-wall 105 °C / 125 °C tinned copper LSOH wire (0.5–2.5 mm²), 140 °C cross-linked FRNC panel wire (0.5–95 mm²) and 200 °C FEP wire.
Marine switchboards, bridge control consoles, propulsion converter cabinets and engine-room terminal boxes require flexible, halogen-free single-core hook-up wires that route cleanly through tight wireways while satisfying IEC 60332-3-22 Category A bunched flame retardance. Standard PVC panel wires (such as UL MTW or H07V-K) release corrosive hydrochloric acid gas in a fire and are prohibited aboard SOLAS-compliant vessels.
Four specialised shipboard internal wiring families cover every voltage, space and thermal requirement. For 0.6/1 (1.2) kV main and emergency switchboards, Type M1X single-core wiring cables built to IEC 60092-350 combine IEC 60228 Class 5 flexible copper conductors (1.5 mm² to 120 mm²) with 90 °C cross-linked polyolefin insulation (IEC 60092-351), delivering continuous current ratings from 22 A up to 335 A at 45 °C ambient.
Where cabinet duct space and harness weight are critical—such as bridge instrumentation desks, naval combat consoles and dense PLC I/O racks—Type TEMA TW thin-wall cross-linked LSOH tinned copper wire (EN 50306-2, 0.50–2.50 mm²) reduces outer diameter to just 1.35–2.70 mm and cable mass to 7–25 kg/km, while supporting 105 °C continuous operation for 100,000 hours (or 125 °C for 20,000 hours) and a tight 3 × OD static bend radius.
For elevated-temperature terminal boxes and thermal zones, the range extends to cross-linked FRNC tinned copper switchboard wires rated from −25 °C to +140 °C (0.5–95 mm²) and perfluoroethylenepropylene (FEP) wires rated from −150 °C to +200 °C (0.5–50 mm²). Compare the four specification tables below to select the right wire family and cross-section.
Explore the marine and offshore cable range for related configurations.
Construction
The representative cutaway illustrates the single-core shipboard switchboard and panel wiring family, pairing a large-section Class 5 flexible 0.6/1 kV halogen-free polyolefin insulated switchboard conductor (Type M1X) with compact fine-stranded tinned copper thin-wall LSOH (Type TEMA TW) and 140 °C cross-linked FRNC control cabinet hook-up wires.
| Component | Material and construction |
|---|---|
| Conductor (0.6/1 kV M1X) | Flexible annealed plain copper (or tinned copper on request) to IEC 60228 Class 5, from 1.5 mm² up to 120 mm². |
| Conductor (Thin-Wall, 140 °C FRNC & 200 °C FEP) | Multi-strand annealed tinned copper wire for corrosion resistance and solderless crimp reliability in marine humidity (19 or 37 strands on TEMA TW 0.50–2.50 mm²; up to 95 mm² on 140 °C FRNC). |
| Insulation — Type M1X (90 °C, 0.6/1 kV) | Cross-linked halogen-free polyolefin to IEC 60092-351, rated 90 °C continuous duty and 250 °C short-circuit; standard black (other colours on request). |
| Insulation — Type TEMA TW (105 °C / 125 °C Thin-Wall) | Special cross-linked LSOH thin-wall compound to EN 50306-2 (0.18–0.28 mm minimum wall), oil and fuel resistant; natural écru or green/yellow (other colours on request). |
| Insulation — 140 °C FRNC & 200 °C FEP | Cross-linked thermoplastic copolymer FRNC (−25 °C to +140 °C, black, white, red, green/yellow) or fluoropolymer FEP (−150 °C to +200 °C, with optional tinned copper braid and FEP outer sheath on multicore builds). |
Applications
Install shipboard single-core wiring inside metallic enclosures, switchboards, conduits and protected harness bundles in accordance with IEC 60092-352.
- Internal power and control wiring of main switchboards, emergency switchboards, motor control centers (MCCs) and distribution panels up to 0.6/1 (1.2) kV AC.
- Bridge wing consoles, integrated navigation desks, alarm panels and dense PLC/DCS marshalling cabinets using compact EN 50306-2 thin-wall LSOH wires.
- Protected wire harnesses and equipment racks aboard surface naval vessels, passenger cruise ships and commercial cargo vessels.
- High-ambient terminal boxes, VFD drive cabinets, resistor banks and generator enclosures requiring +140 °C cross-linked FRNC tinned copper wire.
- Extreme-temperature engine uptakes, boiler/incinerator controls, commercial galley appliances and LNG cryogenic/high-heat zones (−150 °C to +200 °C FEP series).
Specifications
| Parameter | Value |
|---|---|
| Voltage ratings by series | M1X and 140 °C FRNC: 0.6/1 (1.2) kV AC; TEMA TW thin-wall: 300/500 (600) V AC (up to 600/1000 V AC for signalling/control, 3500 V / 5 min test); FEP series: 150/250 V AC (2000 V test). |
| Construction standards | IEC 60092-350, IEC 60092-351, IEC 60092-353, IEC 60092-360, IEC 60092-376 and EN 50306-2. |
| Cross-section ranges | M1X: 1.5–120 mm²; TEMA TW thin-wall: 0.50–2.50 mm²; 140 °C FRNC: 0.5–95 mm²; 200 °C FEP: 0.5–50 mm² (single/twisted) and 0.5–10 mm² (multicore). |
| Temperature ratings | M1X: −15 °C to +90 °C (250 °C SC); TEMA TW: −40 °C to +105 °C (100,000 h) / +125 °C (20,000 h); FRNC: −25 °C to +140 °C; FEP: −150 °C to +200 °C. |
| Flame and fire performance | IEC 60332-1-2 single vertical flame and IEC 60332-3-22 (Cat. A) / EN 50266-2-4 bunched flame retardance (FEP tested to IEC 60332-1-2). |
| Halogen-free and smoke emission | Halogen-free and non-corrosive to IEC 60754-1 / -2 (EN 50267-2-1 / -2-2); low smoke opacity to IEC 61034-1 / -2 (EN 61034); EN 50305 §9.1 / §9.2 on TEMA TW. |
| Oil, fuel and chemical resistance | TEMA TW LSOH compound is oil and fuel resistant to EN 60811 / EN 50306-2; cross-linked FRNC and FEP resist marine lubricants and hydraulic fluids. |
| Minimum bending radius | M1X: 4 × OD static / 8 × OD laying; TEMA TW: 3 × OD static / 6 × OD laying; 140 °C FRNC: 5 × OD operation / 4 × OD install; FEP: > 4 × OD fixed / > 8 × OD flexed. |
| Wire family & voltage class | Conductor construction | Insulation system | Thermal rating | Min. bend radius | Primary shipboard application |
|---|---|---|---|---|---|
| 0.6/1 (1.2) kV Halogen-Free Switchboard Single-Core (Type M1X) | Class 5 flexible plain or tinned copper (1.5–120 mm²) | Cross-linked halogen-free polyolefin to IEC 60092-351 (Black standard; colours on request) | 90 °C continuous / 250 °C short-circuit; −15 °C min. install | 4 × OD static / 8 × OD laying | Main & emergency switchboards, distribution panels & control desks |
| 300/500 (600) V Thin-Wall LSOH Control & Panel Wire (Type TEMA TW) | Stranded tinned annealed copper (0.50–2.50 mm², 19 or 37 strands) | Special cross-linked thin-wall LSOH compound to EN 50306-2 (0.18–0.28 mm min. wall) | 105 °C (100,000 h) / 125 °C (20,000 h) / 160 °C (5 s); −40 °C low temp | 3 × OD static / 6 × OD laying | Compact relay racks, bridge consoles & high-density protected wire bundles |
| 140 °C High-Temp Cross-Linked FRNC Switch Cabinet Wire | Stranded tinned copper wire (0.5–2.5 mm² & 4–95 mm²) | Cross-linked thermoplastic copolymer FRNC to IEC 60092-350 / -360 (BK, WH, RD, G/Y) | −25 °C to +140 °C operating (−10 °C to +80 °C install) | 5 × OD operation / 4 × OD installation | High-ambient switch cabinets, terminal boxes & machinery control panels |
| 200 °C Extreme-Temp FEP Fluoropolymer Shipboard Wire (150/250 V) | Stranded tinned copper wire (0.5–50 mm² single/twisted; 0.5–10 mm² multicore) | Perfluoroethylenepropylene (FEP) insulation (plus tinned braid & FEP jacket on multicore) | −150 °C to +200 °C operating (−65 °C to +180 °C install) | > 4 × OD fixed / > 8 × OD occasionally moved | Exhaust uptakes, turbine hoods, galley equipment & cryogenic/high-heat zones |
| Nominal cross-section | Approx. outer Ø (mm) | Approx. mass (kg/km) | Min. static bend radius (mm) | Max. DC resistance at 20 °C (Ω/km) | Permissible current at 45 °C (A) |
|---|---|---|---|---|---|
| 1 × 1.5 mm² | 3.2 | 20 | 14 | 13.3 | 22 |
| 1 × 2.5 mm² | 4.0 | 30 | 18 | 7.98 | 30 |
| 1 × 4 mm² | 4.5 | 45 | 20 | 4.95 | 40 |
| 1 × 6 mm² | 5.1 | 66 | 22 | 3.30 | 50 |
| 1 × 10 mm² | 6.6 | 107 | 29 | 1.91 | 71 |
| 1 × 16 mm² | 7.9 | 160 | 34 | 1.21 | 95 |
| 1 × 25 mm² | 10.0 | 245 | 43 | 0.780 | 125 |
| 1 × 35 mm² | 11.5 | 334 | 49 | 0.554 | 155 |
| 1 × 50 mm² | 14.0 | 476 | 58 | 0.386 | 195 |
| 1 × 70 mm² | 16.1 | 650 | 67 | 0.272 | 240 |
| 1 × 95 mm² | 17.6 | 890 | 76 | 0.206 | 290 |
| 1 × 120 mm² | 20.4 | 1125 | 84 | 0.161 | 335 |
| Nominal cross-section | Catalog code (Raw / G-Y) | Conductor stranding (n × Ø) | Conductor Ø min – max (mm) | Min. insulation wall (mm) | Nominal outer Ø (mm) | Approx. mass (kg/km) | Max. DC resistance at 20 °C (Ω/km) |
|---|---|---|---|---|---|---|---|
| 0.50 mm² | PTU--062 (Raw) / PTU--562 (G/Y) | 19 × 0.18 mm | 0.80 – 0.95 | 0.18 | 1.35 ± 0.10 | 7 | 40.1 |
| 0.75 mm² | PTU--112 (Raw) / PTU--612 (G/Y) | 37 × 0.16 mm* | 1.00 – 1.15 | 0.18 | 1.55 ± 0.10 | 8 | 26.7 |
| 1.00 mm² | PTU--162 (Raw) / PTU--662 (G/Y) | 37 × 0.18 mm* | 1.10 – 1.30 | 0.18 | 1.70 ± 0.10 | 10 | 20.0 |
| 1.50 mm² | PTU--212 (Raw) / PTU--712 (G/Y) | 37 × 0.23 mm* | 1.45 – 1.65 | 0.22 | 2.15 ± 0.15 | 17 | 13.7 |
| 2.50 mm² | PTU--262 (Raw) / PTU--762 (G/Y) | 37 × 0.30 mm* | 1.85 – 2.15 | 0.28 | 2.70 ± 0.15 | 25 | 8.21 |
| High-temperature series | Core formation | Available cross-sections | Conductor & insulation | Operating temperature | Standards & test voltage | Standard colours / application |
|---|---|---|---|---|---|---|
| 140 °C FRNC Control & Panel Wire (Fine Section) | 1 core | 0.5; 0.75; 1.0; 1.5; 2.5 mm² | Stranded tinned copper + cross-linked FRNC copolymer | −25 °C to +140 °C | IEC 60092-350, -360, -376, -353; IEC 60332-3-22 | Black, white, red, green-yellow (others on request) |
| 140 °C FRNC Switchboard Power Wire (Heavy Section) | 1 core | 4; 6; 10; 16; 25; 35; 50; 70; 95 mm² | Stranded tinned copper + cross-linked FRNC copolymer | −25 °C to +140 °C | IEC 60092-350, -360, -376, -353; IEC 60332-3-22 | Black, white, red, green-yellow (others on request) |
| 200 °C FEP Single or Twisted Hook-Up Wire (150/250 V) | 1 core, 2 twisted or 3 twisted cores | 0.5 to 50 mm² | Stranded tinned copper + FEP fluoropolymer insulation | −150 °C to +200 °C | IEC 60092-350; IEC 60332-1-2; 2000 V test voltage | Standard colour coding for high-heat & cryogenic zones |
| 200 °C FEP Screened Multicore High-Temp Cable (150/250 V) | 2 to 12 cores (0.5–4 mm²); 1 to 4 cores (6–10 mm²) | 0.5 to 4 mm² and 6 to 10 mm² | Stranded tinned copper + FEP insulation + tinned copper braid + FEP jacket | −150 °C to +200 °C | IEC 60092-350, IEC 60092-376; IEC 60332-1-2; 2000 V test | Compact screened high-temp sensor & actuator leads |
Type M1X 0.6/1 kV single-core switchboard wires are un-sheathed insulated conductors intended for installation inside metallic switchboard frames, control desks, conduits, trunking or enclosed cable ladders in accordance with IEC 60092-352.
Type TEMA TW thin-wall wires (EN 50306-2) are rated 300/500 (600) V AC as standard, and may be operated up to 600/1000 V AC for internal signalling and control circuits only, supported by a 3500 V AC / 5-minute dielectric withstand test (peak voltages must be accounted for at 600/1000 V).
Current ratings for Type M1X apply to single insulated conductors at 45 °C ambient air temperature and 90 °C maximum conductor temperature per IEC 60092-352; apply grouping and ambient correction factors where wires are bundled inside closed panel ducts.
For land-based UL/CSA/BS tri-rated switchboard wire (PVC 105 °C) or industrial UL FEP wire, refer to our industrial hook-up wire pages; for marine SOLAS switchboards requiring zero-halogen IEC 60092-350 / EN 50306-2 compliance, specify the M1X, TEMA TW or 140 °C FRNC series on this page.
Standards
| Standard or specification | Application |
|---|---|
| IEC 60092-350 & IEC 60092-351 | Shipboard electrical installations—general construction, test methods and cross-linked halogen-free polyolefin insulation for 0.6/1 (1.2) kV switchboard wiring. |
| IEC 60092-352 | Choice and installation of low-voltage shipboard cables, including internal switchboard wiring rules and 45 °C current ratings. |
| EN 50306-2 & EN 50305 | Thin-wall cross-linked LSOH insulated single-core control and panel wiring cables (0.50–2.50 mm², 105 °C / 125 °C) with small outer diameter for compact protected bundles. |
| IEC 60092-360, IEC 60092-353 & IEC 60092-376 | Cross-linked FRNC and FEP high-temperature shipboard installation and multicore control wire requirements. |
| IEC 60228 (EN 60228) | Class 5 flexible plain/tinned copper and fine-stranded tinned copper conductors. |
| IEC 60332-1-2, IEC 60332-3-22 (Cat. A), IEC 60754-1/-2 & IEC 61034-1/-2 | Single and bunched Category A flame retardance, zero halogen acid gas and low smoke emission. |
IEC 60092-350 / IEC 60092-353 shipboard power, control and switchboard cable general requirements
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