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MIL-DTL-3432 Military Arctic Rubber CablesMIL-DTL-3432J300 V / 600 V-55 °C Arctic Military

MIL-DTL-3432 / M3432 Military Flexible Rubber Power CableMIL-DTL-3432J · 300 V & 600 V · -55 °C arctic cold-flex · Tinned Cu · Classes C, CO, L ·

MIL-DTL-3432 (M3432, formerly MIL-C-3432) is the US military detail specification for 300 V and 600 V heavy-duty low-temperature flexible rubber power and multi-core control cables. Engineered with tinned copper conductors, arctic-grade thermoset rubber

Oil-resistant

Flame-retardant

Ozone, UV & moisture

Anti-torsion braid

M3432 Class & Configuration

Order designation: M3432 CO600H 4×10 AWG (5.26 mm²)
Outer Ø ≈: 19.6 mm
Copper weight: 202 kg/km
Total weight ≈: 525 kg/km
Min. bend R (fixed): 98 mm

All sizes (12)

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Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum

Rated voltage: 300 V & 600 V
Arctic cold-bend: -55 °C (-65 °C)
Conductor max.: +75 to +105 °C
Min. bend R: 5 × D / 8 × D
Conductor metal: Tinned Cu
Duty classes: Heavy H / Med M

Typical values for this cable type, based on MIL-DTL-3432J (MIL-C-3432) — confirmed in the datasheet and quotation for your order.

Application fit

Is MIL-DTL-3432 / M3432 right for your machine?

Designed for tactical mobile power generators, field radar and communication vans, aerospace ground support equipment (AGE), military vehicle trailers, and arctic expeditionary bases.

Trailing & towing

Suitable

Duty H cord-reinforced jacket withstands tactical vehicle roll-over and rough field deployment.

Motorised monospiral reel

Suitable

Remains flexible for manual and motorized field cable reels down to -55 °C arctic cold.

Drilling jumbo & rotary mast feed

Suitable

Resists JP-8 aviation fuel, diesel, hydraulic fluids, and arctic winter conditions.

Self-supporting pendant & push-button drop

Suitable

Multi-core 300 V/600 V variants serve tactical control boxes, launchers, and weapon pedestals.

Fixed installation

Suitable

Used for shelter-to-shelter interconnects and mobile command post power distribution.

Typical machinesTactical Mobile Power GenerationAerospace Ground Support (AGE)Radar & Field CommunicationsDefense Vehicle & Trailer HarnessesArctic & Extreme-Cold Operations

Construction

Layer by layer

Tinned flexible copper conductors, arctic thermoset elastomer insulation, planetary jute/cotton fillers, textile reinforcement braid (Duty

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Tinned flexible copper conductor	Soft annealed tinned copper wire in fine bunched or concentric rope-lay stranding perMIL-DTL-3432J
2	Paper/polyester separator tape	Thin non-adhering separator wrap allowing clean stripping for military circular connectorsMIL-DTL-3432J
3	Arctic thermoset rubber insulation	Low-temperature cross-linked SBR/EPR/EPDM dielectric compound (MIL-DTL-3432 Class I)MIL-DTL-3432J
4	Reinforcing textile cord braid (Duty H)	Open-weave high-tenacity cotton/synthetic reinforcement braid bonded between inner andMIL-DTL-3432J
5	Arctic oil-resistant outer jacket	Heavy-duty -55 °C polychloroprene / nitrile-elastomer compound resistant to oil, fuelMIL-DTL-3432J

M3432 Class CO / C (Duty H, 600 V)

Heavy-duty 2- to 5-core field power feeder (18 AWG to 2/0 AWG) with oil-resistant -55 °C arctic jacket.

M3432 Multi-Core Control (300/600 V)

6- to 36-core unshielded or shielded tactical control and instrumentation cable (22 AWG to 12 AWG).

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on MIL-DTL-3432J (MIL-C-3432). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage: 300 V or 600 V AC/DC
Dielectric withstand test: 1.5 kV (300 V) / 2.5 kV (600 V) rms
Insulation resistance at +20 °C: ≥ 500 MΩ·km
Conductor coating: Tin-coated copper (ASTM B33)
Optional EMI shielding: 85 % tinned copper braid (shielded types)
Operating frequency: 50 / 60 / 400 Hz & DC

Thermal

Low-temperature cold bend: -55 °C (-65 °C arctic class)
Max. conductor operating temp.: +75 °C (standard) / +105 °C (heat)
Max. short-circuit temperature: +200 °C / +250 °C
Field deployment ambient: -55 °C to +75 °C
Heat ageing test: 7 days at +100 °C air oven
Thermal shock stability: -55 °C to +75 °C rapid cycle

Mechanical

Min. bend radius (fixed): 5 × overall diameter (D)
Min. bend radius (field flexing): 8 × overall diameter (D)
Duty classifications: H (Heavy), M (Medium), L (Light)
Jacket tensile strength: ≥ 12.4 MPa (Class CO/C)
Jacket elongation at break: ≥ 300 % unaged
Crush & vehicle roll-over: Reinforced Duty H double jacket

Resistance

Hydrocarbon & fuel resistance: Resistant to oil, diesel & JP-8 splash
Flame retardance: MIL-DTL-3432 flame test & FT2
Ozone & desert UV exposure: Ozone-resistant per MIL-DTL-3432
Water & mud immersion: All-weather tactical field jacket
Fungus resistance: Non-nutrient elastomer compounds
Corrosion protection: Tinned copper prevents strand oxidation

Reference standards

Primary military specification: MIL-DTL-3432J (supersedes MIL-C-3432)
Conductor standard: ASTM B33 / ASTM B172 / IEC 60228
Connector compatibility: MIL-DTL-22992 & MIL-DTL-5015
Flame test standard: MIL-DTL-3432 / UL VW-1 / IEC 60332-1-2
Commercial cross-reference: SOOW / 2XSAOW / H07RN-F
Quality certification: EN 10204 3.1 & lot conformance report

Identification

Core identification (≤ 5 cores): Black, white, red, green, orange
Core identification (≥ 6 cores): Colour-coded or numbered per MIL-STD-681
Outer jacket colour: Matte black (olive drab on request)
Surface marking: M3432 [Class/Duty] [Voltage] [Size]
Length marking: Foot or metre sequential legend
Batch traceability: Contract/lot number & date code

Sizes

12 standard configurations (MIL-DTL-3432 / M3432)

Nominal dimensions, copper weights and electrical parameters for MIL-DTL-3432 / M3432 per MIL-DTL-3432J (MIL-C-3432).

Dimensions & weights
Order designation	M3432 Class & Configuration	Phase size mm²	Outer Ø ≈ mm	Copper kg/km	Weight ≈ kg/km	Min. bend R fixed mm
Class CO / C Heavy Duty (H) — 600 V military mobile power feeders
M3432 CO600H 3×14 AWG (2.08 mm²)	3×14 AWG (600 V H)	2.08	14.5	60	245	72
M3432 CO600H 4×14 AWG (2.08 mm²)	4×14 AWG (600 V H)	2.08	15.8	80	295	79
M3432 CO600H 4×12 AWG (3.31 mm²)	4×12 AWG (600 V H)	3.31	17.5	127	390	88
M3432 CO600H 4×10 AWG (5.26 mm²)	4×10 AWG (600 V H)	5.26	19.6	202	525	98
M3432 CO600H 4×8 AWG (8.37 mm²)	4×8 AWG (600 V H)	8.37	24.4	321	815	122
M3432 CO600H 4×6 AWG (13.3 mm²)	4×6 AWG (600 V H)	13.3	27.8	511	1,140	139
M3432 CO600H 4×4 AWG (21.2 mm²)	4×4 AWG (600 V H)	21.2	32.0	814	1,610	160
M3432 CO600H 4×2 AWG (33.6 mm²)	4×2 AWG (600 V H)	33.6	36.8	1,290	2,310	184
Class L / CO Control — 300 V & 600 V multi-core tactical control & telemetry
M3432 CO600M 7×16 AWG (1.31 mm²)	7×16 AWG (Control)	1.31	15.4	88	285	77
M3432 CO600M 12×16 AWG (1.31 mm²)	12×16 AWG (Control)	1.31	19.8	151	465	99
M3432 CO600M 19×16 AWG (1.31 mm²)	19×16 AWG (Control)	1.31	23.2	239	660	116
M3432 CO600M 24×16 AWG (1.31 mm²)	24×16 AWG (Control)	1.31	26.5	302	845	132

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Outer diameters and weights are nominal factory values subject to ±5 % manufacturing tolerance per MIL-DTL-3432J (MIL-C-3432).

Electrical & ampacity data
Configuration	Max. DC R @ 20 °C Ω/km	Current rating in air (A)	Current rating installed (A)	Mutual C pF/m ≈	AC test V rms
3×14 AWG (600 V H)	9.758	23	20	81	2,500
4×14 AWG (600 V H)	9.758	23	20	81	2,500
4×12 AWG (600 V H)	6.130	31	26	83	2,500
4×10 AWG (600 V H)	3.864	42	36	86	2,500
4×8 AWG (600 V H)	2.429	56	48	90	2,500
4×6 AWG (600 V H)	1.527	74	63	97	2,500
4×4 AWG (600 V H)	0.958	99	84	109	2,500
4×2 AWG (600 V H)	0.605	132	112	127	2,500
7×16 AWG (Control)	15.272	18	15	80	2,500
12×16 AWG (Control)	15.272	18	15	80	2,500
19×16 AWG (Control)	15.272	18	15	80	2,500
24×16 AWG (Control)	15.272	18	15	80	2,500

Current ratings apply at +25/+30 °C ambient in free air; apply standard derating factors for elevated ambient or drum coiling.

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
AC dielectric voltage & IR test	1.5 kV (300 V) or 2.5 kV (600 V) rms for 5 minutes	Every reel
Tinned conductor DC resistance	Complies with MIL-DTL-3432J / ASTM B172 limits at 20 °C	Every reel
Sample tests
-55 °C arctic cold-bend & impact test	Zero cracking or delamination when bent around mandrel at -55 °C	Per production lot
Oil immersion, ozone & flame propagation	Passes MIL-DTL-3432 hydrocarbon immersion, ozone & flame tests	Qualification

Inspection certificate

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

Product approvals

MIL-DTL-3432J / MIL-C-3432ASTM B33 / B172RoHS / CE

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX M3432 CO600H [n×AWG] -55C ARCTIC

Delivery form: Fumigated export wooden drums or coils
Standard drum lengths: 500 m · 1000 m (or custom cut lengths)
MOQ: 100 m (stock sizes) · 300–500 m (production)
Lead time: 2–4 weeks ex-works
Incoterms: EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFMIL-DTL-3432 / M3432 Military Flexible Rubber Power Cable – technical datasheet12 sizes · construction, technical data, approvals XLSXMIL-DTL-3432 / M3432 spec data (Excel)All 12 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.

What makes MIL-DTL-3432 (M3432) different from commercial SOOW portable cord?

While commercial SOOW is typically rated to -40 °C with bare copper strands, MIL-DTL-3432 specifies tin-coated rope-lay copper conductors for corrosion resistance, an embedded textile reinforcement braid in Heavy Duty (H) constructions, and arctic elastomer compounds tested for cold-bend flexibility at -55 °C. Each production drum undergoes routine dielectric voltage testing, conductor DC resistance verification, and dimensional inspection before dispatch with an EN 10204 3.1 mill test certificate.

What do the MIL-DTL-3432 class letters C, CO, and L represent?

Class C designates a heavy-duty abrasion-resistant rubber jacket, Class CO adds oil and hydrocarbon fuel resistance to the low-temperature jacket, and Class L covers low-temperature flexible control and light/medium-duty multi-core cables. Each production drum undergoes routine dielectric voltage testing, conductor DC resistance verification, and dimensional inspection before dispatch with an EN 10204 3.1 mill test certificate.

Is MIL-DTL-3432 compatible with 400 Hz aerospace ground power units (GPUs)?

Yes, 600 V Heavy Duty (H) M3432 cables are widely used on 50/60 Hz tactical field generators and 115/200 V 400 Hz aircraft ground support equipment (AGE) carts and radar trailers. Each production drum undergoes routine dielectric voltage testing, conductor DC resistance verification, and dimensional inspection before dispatch with an EN 10204 3.1 mill test certificate.

Can M3432 cables be supplied with an overall EMI braid shield?

Yes, multi-core control and power configurations can be manufactured with an 85 % minimum coverage tinned copper braid shield beneath the outer jacket for tactical EMC/EMI protection. Each production drum undergoes routine dielectric voltage testing, conductor DC resistance verification, and dimensional inspection before dispatch with an EN 10204 3.1 mill test certificate.

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MIL-DTL-3432 / M3432 Military Flexible Rubber Power Cable

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MIL-DTL-3432 / M3432 Military Flexible Rubber Power CableMIL-DTL-3432J · 300 V & 600 V · -55 °C arctic cold-flex · Tinned Cu · Classes C, CO, L ·

Trailing & towing

Motorised monospiral reel

Drilling jumbo & rotary mast feed

Self-supporting pendant & push-button drop

Fixed installation

M3432 Class CO / C (Duty H, 600 V)

M3432 Multi-Core Control (300/600 V)

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

2XSAW / 2XSAOW / 2XSW / 2XSOW

3XSW / 3XSOW 600 V

H07RN-F 450/750 V

NSHTÖU 0.6/1 kV