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Product

IEC 60317-35 / NEMA MW 131-C PB155 IEC 60317-35 / NEMA MW 131-CUp to 1000 V−40…+155 °C

Class 155 Solderable Polyurethane Self-Bonding Enamelled Copper WireIEC 60317-35 / NEMA MW 131-C · Up to 1000 V · -40 °C to +155 °C industrial MW 131-C / IEC

Class 155 Solderable Polyurethane Self-Bonding Enamelled Copper Magnet Wire (MW 131-C / IEC 60317-35 PB155) engineered to IEC 60317-35 / NEMA MW 131-C for Up to 1000 V service across -40 °C to +155 °C, featuring stranded copper conductor and thermoplastic

Approved

Flame-retardant

Oil-resistant

Nominal conductor

Order designation: MW 131-C / IEC 60317-35 PB155 Ø 1.00 mm
Max. overall Ø: 1.08 mm
Total weight ≈: 7.08 kg/km
Min. mandrel R: 5 mm
Nominal conductor: Ø 1.00 mm (AWG 18)

All sizes (10)

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: Up to 1000 V
Operating temp.: −40…+155 °C
Min. bend radius: 4 × OD
Conductor: copper conductor
Outer layer: Thermoplastic
Standard: IEC 60317-35

Typical values for this cable type, based on IEC 60317-35 / NEMA MW 131-C — confirmed in the datasheet and quotation for your order.

Application fit

Is MW 131-C / PB155 right for your machine?

Motor stator, traction & converter leads

Suitable

Engineered and verified for motor lead service in accordance with IEC 60317-35 / NEMA MW 131-C.

Switchgear & control cabinet wiring

Suitable

Engineered and verified for cabinet chassis service in accordance with IEC 60317-35 / NEMA MW 131-C.

Fixed installation

Suitable

Qualified for fixed installation on trays, racks, conduits or supports per IEC 60317-35 / NEMA MW 131-C.

TBM gantry & advancing tunnel reel

With conditions

Use mechanical conduit or armoured protection where exposed to rock fall or crushing loads.

Typical machinesAutomotive & Commercial VehiclesAutomated Assembly & Packaging LinesCNC Machine Tools & RoboticsPLC/DCS Control & Marshalling CabinetsIndustrial Drives & Motor ManufacturingPassenger & Commercial Vehicle Harnesses

Construction

Layer by layer

Shown: MW 131-C / IEC 60317-35 PB155 (IEC 60317-35 / NEMA MW 131-C) with stranded copper conductor, polyurethane enamel base and thermoplastic butyral bonding film (3-layer construction).

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Stranded copper conductor	High-conductivity copper conductor per IEC 60317-35 / NEMA MW 131-CIEC 60317-35 / NEMA MW 131-C
2	Polyurethane enamel base	Polyurethane enamel base (continuous layer)IEC 60317-35 / NEMA MW 131-C
3	Thermoplastic butyral bonding film	Extruded Thermoplastic butyral bonding film protective layer (continuous layer)IEC 60317-35 / NEMA MW 131-C

MW 131-C / IEC 60317-35 PB155 — Standard Execution

Built to IEC 60317-35 / NEMA MW 131-C with stranded copper conductor and thermoplastic butyral bonding film

MW 131-C / IEC 60317-35 PB155 — Custom Cross-Sections

Full range of metric mm² and AWG/kcmil conductor sizes per IEC 60317-35 / NEMA MW 131-C

MW 131-C / IEC 60317-35 PB155 — Export Drum Supply

Supplied with EN 10204 3.1 routine dielectric & conductor resistance test certificate

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on IEC 60317-35 / NEMA MW 131-C. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage / duty: Up to 1000 V (IEC 60317-35 / NEMA MW 131-C)
Conductor construction: Stranded copper conductor — High-conductivity copper conductor per IEC 60317-35 / NEMA MW 131-C
Primary insulation / dielectric: Polyurethane enamel base — Polyurethane enamel base (continuous layer)

Thermal

Continuous operating temperature: −40…+155 °C per IEC 60317-35 / NEMA MW 131-C
Short-circuit / peak thermal limit: +160 °C to +250 °C (5 s adiabatic limit depending on dielectric class)
Minimum installation temperature: −5 °C (thermoplastic) / −25 °C (cross-linked or elastomer) / −40 °C (metallic)

Mechanical

Outer protection / covering: Thermoplastic butyral bonding film — Extruded Thermoplastic butyral bonding film protective layer (continuous layer)
Minimum bending radius: 4 × OD (installed / static routing)
Layer count & geometry: 3 concentric/structural layers verified by cross-section inspection

Resistance

Environmental & chemical durability: Engineered for industrial service in accordance with IEC 60317-35 / NEMA MW 131-C
RoHS & REACH compliance: RoHS 2 (2011/65/EU + 2015/863) & REACH SVHC compliant

Reference standards

Governing product standard: IEC 60317-35 / NEMA MW 131-C
Quality management & inspection: ISO 9001:2015 & EN 10204 3.1 factory routine inspection

Identification

Model designation: MW 131-C / IEC 60317-35 PB155
Customs tariff (HS): 8544.49 / 8544.60 / 7614.10

Sizes

10 standard MW 131-C / IEC 60317-35 PB155 winding & resistance wire dimensions

Precision drawn and insulated to IEC 60317-35 / NEMA MW 131-C in Grade 1 / Grade 2 builds and rectangular profiles.

Nominal conductor diameter, overall Ø & weight
Order designation	Nominal conductor	Max. overall Ø mm	Weight ≈ kg/km	Min. mandrel R mm
MW 131-C / IEC 60317-35 PB155 Standard Precision Winding Schedule (−40…+155 °C)
MW 131-C / IEC 60317-35 PB155 Ø 0.25 mm	Ø 0.25 mm (AWG 30)	0.29	0.45	2
MW 131-C / IEC 60317-35 PB155 Ø 0.40 mm	Ø 0.40 mm (AWG 26)	0.45	1.14	2
MW 131-C / IEC 60317-35 PB155 Ø 0.63 mm	Ø 0.63 mm (AWG 22)	0.69	2.82	3
MW 131-C / IEC 60317-35 PB155 Ø 0.80 mm	Ø 0.80 mm (AWG 20)	0.87	4.54	4
MW 131-C / IEC 60317-35 PB155 Ø 1.00 mm	Ø 1.00 mm (AWG 18)	1.08	7.08	5
MW 131-C / IEC 60317-35 PB155 Ø 1.25 mm	Ø 1.25 mm (AWG 16)	1.34	11.00	6
MW 131-C / IEC 60317-35 PB155 Ø 1.60 mm	Ø 1.60 mm (AWG 14)	1.70	18.10	8
MW 131-C / IEC 60317-35 PB155 Ø 2.00 mm	Ø 2.00 mm (AWG 12)	2.11	28.20	10
MW 131-C / IEC 60317-35 PB155 Ø 2.50 mm	Ø 2.50 mm (AWG 10)	2.62	44.10	13
MW 131-C / IEC 60317-35 PB155 Ø 3.15 mm	Ø 3.15 mm (AWG 8)	3.28	70.00	16

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Supplied on precision PT25 / PT45 / PT90 / Din 355 conical and cylindrical winding spools per IEC 60317-35 / NEMA MW 131-C.

DC resistance & dielectric breakdown voltage
Conductor size	Nominal R₂₀ Ω/km	Min. breakdown V AC	Thermal class
Ø 0.25 mm (0.049 mm²)	351.00	4,200	−40…+155 °C
Ø 0.63 mm (0.312 mm²)	55.30	5,000	−40…+155 °C
Ø 1.00 mm (0.785 mm²)	21.90	5,500	−40…+155 °C
Ø 1.60 mm (2.011 mm²)	8.57	5,800	−40…+155 °C
Ø 2.50 mm (4.909 mm²)	3.51	6,000	−40…+155 °C

Tested in accordance with IEC 60851-5 / IEC 60317-35 / NEMA MW 131-C routine dielectric and elongation test methods.

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 DC resistance & dimensional verification (IEC 60317-35 / NEMA MW 131-C)	DC resistance at 20 °C and geometry within IEC 60317-35 / NEMA MW 131-C class limits	Every manufactured drum / spool
Routine dielectric / spark / structural integrity test (IEC 60317-35 / NEMA MW 131-C)	Zero breakdown or structural defect over full production length	Every manufactured drum / spool
Sample tests
Thermal aging, mechanical & material qualification (IEC 60317-35 / NEMA MW 131-C)	Full compliance with IEC 60317-35 / NEMA MW 131-C across −40…+155 °C	Type qualification & periodic sample audit

Inspection certificate

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

Product approvals

IEC 60317-35 CompliantEN 10204 3.1 Routine 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 MW 131-C / IEC 60317-35 PB155 <size> IEC 60317-35 Up to 1000 V CE

Delivery form: Non-returnable fumigated wooden drums or precision DIN spools
Standard lengths: 500 m · 1000 m · 2000 m drums (custom cut lengths on request)
MOQ: 500 m (stock sizes) · 1000 m (custom production)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FCA, FOB, CIF, DAP

Technical documents

Downloads

PDFClass 155 Solderable Polyurethane Self-Bonding Enamelled Copper – technical datasheet10 sizes · construction, technical data, approvals XLSXMW 131-C / IEC 60317-35 PB155 spec data (Excel)All 10 sizes with dimensions and data, for your BOM or quotation

Revision: 2026-10-21
Updated: 2026-10-21

FAQ

Questions engineers ask first

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

What governing standard and construction define MW 131-C / IEC 60317-35 PB155 (Class 155 Solderable Polyurethane Self-Bonding Enamelled Copper Magnet Wire)?

MW 131-C / IEC 60317-35 PB155 (Class 155 Solderable Polyurethane Self-Bonding Enamelled Copper Magnet Wire) is manufactured in accordance with IEC 60317-35 / NEMA MW 131-C for Up to 1000 V service over -40 °C to +155 °C. Its 3-layer construction comprises stranded copper conductor, polyurethane enamel base, thermoplastic butyral bonding film.

What is the minimum bending radius and installation temperature for MW 131-C / IEC 60317-35 PB155?

The minimum installed bending radius for MW 131-C / IEC 60317-35 PB155 is 4 × OD across its continuous operating temperature range of -40 °C to +155 °C, ensuring mechanical and dielectric stability without conductor or insulation strain.

How are the concentric layers of MW 131-C / IEC 60317-35 PB155 arranged from inside to outside?

From inside to outside, the construction sequence is: (01) Stranded copper conductor (High-conductivity copper conductor per IEC 60317-35 / NEMA MW 131-C); (02) Polyurethane enamel base (Polyurethane enamel base (continuous layer)); (03) Thermoplastic butyral bonding film (Extruded Thermoplastic butyral bonding film protective layer (continuous layer)).

What factory test certificates are supplied with MW 131-C / IEC 60317-35 PB155?

Every production drum or spool of MW 131-C / IEC 60317-35 PB155 undergoes routine conductor DC resistance, dimensional and dielectric/integrity testing per IEC 60317-35 / NEMA MW 131-C, and is delivered with an EN 10204 3.1 factory test certificate.

Request a quote

Get an engineering quote for MW 131-C / PB155

Your selection and application details are copied into the enquiry form below.

01Selected sizes

Use + Add next to a size or configuration.

02Reel & motion

Add your operating conditions here to include them in your enquiry.

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

MW 131-C / PB155 Class 155 Solderable Polyurethane Self-Bonding Enamelled Copper Wire

Selected sizes:


Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
- Equipment and operating conditions:

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