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High-temperature wires & cablesEN 50525-2-83 (H05SS-F / H05SST-F)300/500 V · −60 to +180 °CEI2 / EM9 Silicone + Braid

Silicone Rubber Multicore High-Temperature Cable (H05SS-F / H05SST-F)300/500 V −60 to +180 °C EN 50525-2-83 EI2/EM9 flexible multicore silicone cable

Harmonized EN 50525-2-83 multi-core high-temperature cable (300/500 V, −60 °C to +180 °C) with Class 5 tinned copper conductors, EI2 cross-linked silicone core insulation and an EM9 silicone outer sheath—unbraided (H05SS-F) or braided (H05SST-F).

Flame-retardant

Outdoor & humid

Approved

Preview configuration

Order designation: H05SS-F · 4G1.5 mm²
Nominal OD: 9.3 mm
Sheath: 1.0 mm
Total mass: 135.0 kg/km
Max. DC res.: 13.30 Ω/km

Check against my drum All sizes (17)

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

Max. operating T: +180 °C
Rated voltage: 300/500 V
Insulation/sheath: EI2 / EM9 SiR
Core & CSA range: 2–24C · 0.75–6
Low-temp limit: −60 °C
Min. bend radius: 8 × OD / 10 × OD

Typical values for this cable type, based on EN 50525-2-83 (H05SS-F & H05SST-F) — confirmed in the datasheet and quotation for your order.

Application fit

Is H05SS-F & H05SST-F (SiHF) right for your machine?

Flexible multicore silicone rubber power and control cable (-60 °C to +180 °C) for steelworks, foundries, glass plants, cement kilns and cold-storage rooms.

Furnace, kiln & high-temp zone

Suitable

Primary duty — multi-core power & sensor interconnections in steel mills, coking plants and kilns up to +180 °C.

Fixed installation

Suitable

Open trays, conduits and raised brackets across hot ambient plant zones where PVC/EPR embrittles.

Festoon & line chain

With conditions

Usable on low-stress indoor hot-bay festoons when protected from sharp slag or mechanical crush.

Trailing & towing

Not suitable

Silicone outer sheath has lower cut/tear strength than PCP/PUR when dragged over rough floors.

Use (N)SHTÖU Reeling

Motorised monospiral reel

Not suitable

Lacks anti-torsion braid and tensile core required for motorised crane reels.

Use (N)SHTÖU Reeling

Typical machinesSteelworks, foundries & rolling millsGlassworks & ceramic kiln plantsCommercial baking ovens & food processingSauna, HVAC & climate test chambersHigh-bay floodlights & stage lightingPlastics extrusion & moulding lines

Construction

Layer by layer

Two to 24 fine-stranded Class 5 tinned or bare copper conductors are insulated with cross-linked EI2 silicone rubber (colour-coded per HD 308 S2 or numbered), cabled together, and jacketed with a tear-resistant EM9 cross-linked silicone outer sheath. On H05SST-F, an overall treated glass/textile or galvanized steel wire braid armors the sheath.

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Class 5 tinned/bare copper conductors	Fine-stranded annealed tinned or bare copper per EN 60228 Class 5 (0.75 to 6.0 mm², 2 to 24 cores)EN 60228
2	EI2 cross-linked silicone core insulation	Halogen-free vulcanized silicone elastomer compound EI2 per EN 50363-1, colour-coded to HD 308 S2 or black numbered + G/YEN 50363-1 / HD 308 S2
3	EM9 cross-linked silicone outer sheath	Extruded tear- and heat-resistant cross-linked silicone elastomer compound EM9 per EN 50363-2-1 (reddish-brown, black or white)EN 50363-2-1
4	Protective outer braid (H05SST-F)	Closely woven treated glass/textile braid or galvanized steel wire braid over the EM9 sheath (applied on H05SST-F; omitted on H05SS-F)EN 50525-2-83

H05SS-F (SiHF) · Unbraided Smooth Silicone Sheath

300/500 V · −60 °C to +180 °C · EI2 silicone cores + smooth EM9 silicone outer sheath for IP68 gland sealing

H05SST-F (SiHF-GL-P) · Overall Mechanical Braid

300/500 V · −60 °C to +180 °C · EI2 silicone cores + EM9 silicone sheath + overall textile/glass or galvanized steel wire braid

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on EN 50525-2-83 (H05SS-F & H05SST-F). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage (U0/U): U0/U = 300/500 V AC across H05SS-F (unbraided) and H05SST-F (braided)
AC test voltage & IR: 2.0 kV Vac AC dielectric test voltage · min. insulation resistance ≥ 200 MΩ·km at 20 °C
Conductor stranding & finish: Fine-stranded tinned or bare annealed copper per EN 60228 Class 5

Thermal

Operating & short-circuit temperature: −60 °C to +180 °C continuous conductor temperature (+200 °C short-term peak; +350 °C max 5 s short-circuit)
Cryogenic to furnace span: Retains full elastomeric flexibility from −60 °C blast freezers up to +180 °C radiant heat zones

Mechanical

Core, sheath & braid options: EI2 cross-linked silicone cores + EM9 tear-resistant silicone outer sheath (H05SS-F), plus overall treated glass/textile or galvanized steel braid on H05SST-F
Minimum bending radius: 8 × overall diameter (fixed routing) · 10 × overall diameter (free flexing)

Resistance

Flame, smoke & halogen-free: IEC 60332-1-2 flame retardant; halogen-free per IEC 60754-1/2; low smoke density per IEC 61034-2
Oils, fats, steam & ozone: Resistant to humid steam, ozone, UV, vegetable/animal fats, alcohols and dilute acids

Reference standards

Applicable standards: EN 50525-2-83:2011 (DIN VDE 0285-525-2-83 / HD 22.15); EN 60228; HD 308 S2
Environmental compliance: HAR, CE, RoHS & REACH compliant halogen-free silicone cable

Identification

Core identification: Colour-coded per HD 308 S2 up to 5 cores (with or without G/Y); black cores with white numbers + G/Y from 6 to 24 cores
Standard outer sheath colours: Reddish-Brown ( oxide red, standard), Black or White

Sizes

17 representative configurations across H05SS-F (Unbraided) & H05SST-F (Braided)

Core count × cross-section, EI2 insulation wall, EM9 sheath thickness, nominal outer diameter, copper mass, total cable mass and max DC resistance at 20 °C.

Dimensions, weights & DC resistance
Type · Configuration	Cores × CSA mm²	Core wall mm	Sheath mm	Nominal OD mm	Cu mass kg/km	Total mass kg/km	Max. DC res. (20 °C) Ω/km
EN 50525-2-83 H05SS-F (SiHF) · 300/500 V · 180 °C · Unbraided Smooth EM9 Silicone Sheath
H05SS-F · 2×0.75 mm²	2×0.75	0.6	0.8	6.4	14.4	54.0	26.00
H05SS-F · 3G0.75 mm²	3G0.75	0.6	0.8	6.8	21.6	66.0	26.00
H05SS-F · 3G1.0 mm²	3G1.0	0.6	0.9	7.4	28.8	79.0	19.50
H05SS-F · 3G1.5 mm²	3G1.5	0.8	0.9	8.4	43.2	108.0	13.30
H05SS-F · 4G1.5 mm²	4G1.5	0.8	1.0	9.3	57.6	135.0	13.30
H05SS-F · 5G1.5 mm²	5G1.5	0.8	1.1	10.3	72.0	165.0	13.30
H05SS-F · 7G1.5 mm²	7G1.5	0.8	1.1	11.2	100.8	208.0	13.30
H05SS-F · 12G1.5 mm²	12G1.5	0.8	1.3	14.8	172.8	345.0	13.30
H05SS-F · 3G2.5 mm²	3G2.5	0.9	1.1	10.2	72.0	162.0	7.98
H05SS-F · 4G2.5 mm²	4G2.5	0.9	1.1	11.2	96.0	202.0	7.98
H05SS-F · 5G2.5 mm²	5G2.5	0.9	1.2	12.4	120.0	248.0	7.98
H05SS-F · 4G4.0 mm²	4G4.0	1.0	1.2	13.0	153.6	292.0	4.95
H05SS-F · 5G6.0 mm²	5G6.0	1.0	1.4	16.4	288.0	485.0	3.30
EN 50525-2-83 H05SST-F · 300/500 V · 180 °C · EM9 Silicone Sheath + Protective Outer Braid
H05SST-F · 3G1.5 mm²	3G1.5	0.8	0.9	9.0	43.2	132.0	13.30
H05SST-F · 4G1.5 mm²	4G1.5	0.8	1.0	9.9	57.6	162.0	13.30
H05SST-F · 4G2.5 mm²	4G2.5	0.9	1.1	11.8	96.0	238.0	7.98
H05SST-F · 4G4.0 mm²	4G4.0	1.0	1.2	13.7	153.6	335.0	4.95

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
'G' denotes constructions including a Green/Yellow protective earth core; '×' denotes constructions without Green/Yellow.

Reel check

Will it fit your machine?

A first screen using datasheet values. Engineering confirms drum geometry, acceleration and tension with your quotation.

Cable sizeDrum core diameter (mm)

Cable length on drum (m)

Enter your drum core diameterMinimum for this size is about 148 mm

Minimum bending radius: 74 mm
Min. drum core diameter: ≈ 148 mm
Cable weight on drum: 13.5 kg
Outer diameter: 9.3 mm

Indicative only: based on the datasheet outer diameter and 8 × OD bending radius. Current derating for wound layers per DIN VDE 0298-4 is assessed separately.

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 & spark test	2.0 kV Vac dielectric test on completed cable and 100% core spark test per EN 50525-2-83	Every drum
Conductor DC resistance check	Verified at 20 °C per EN 60228 Class 5 limits	Every drum
Sample tests
Flame & halogen-free test	IEC 60332-1-2 vertical flame test and IEC 60754-1/2 zero-halogen gas acidity check	Production lot
EI2 / EM9 thermal endurance & tear test	180 °C oven aging, −60 °C cold bend and EM9 sheath tear resistance per EN 50363	Production lot

Inspection certificate

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

Product approvals

EN 50525-2-83 (H05SS-F / H05SST-F)CE · LVDRoHS · REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX · <HAR> H05SS-F (or H05SST-F) [Cores×mm²] 300/500V EN 50525-2-83 · 180°C · CE

Delivery form: Coils, non-returnable wooden drums and custom cut lengths
Lengths: 100 m coils, 500 m / 1,000 m drums and cut-to-length assemblies
Certificate: EN 10204 3.1 inspection certificate with every dispatch
Quote response: Engineering specification and quote within 2 business hours

Technical documents

Downloads

PDFSilicone Rubber Multicore High-Temperature Cable (H05SS-F / H05SST-F) – technical datasheet17 sizes · construction, technical data, approvals XLSXH05SS-F & H05SST-F (SiHF) spec data (Excel)All 17 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 is the difference between H05SS-F and H05SST-F?

Both are 300/500 V, 180 °C multi-core cables with Class 5 copper conductors, EI2 cross-linked silicone core insulation and an EM9 cross-linked silicone outer sheath per EN 50525-2-83. H05SS-F has a smooth outer silicone sheath for standard gland sealing, whereas H05SST-F adds an overall textile/glass or galvanized steel braid over the sheath for mechanical impact and hot-spatter protection.

How does H05SS-F relate to the German designation SiHF?

SiHF is the traditional VDE factory code for flexible silicone-insulated, silicone-sheathed multi-core cables. H05SS-F is the CENELEC harmonized standard code under EN 50525-2-83 with strictly defined EI2 core and EM9 tear-resistant outer sheath compound properties.

Can H05SS-F and H05SST-F be used in deep-freeze (−60 °C) applications as well as high heat?

Yes. Unlike PVC or standard elastomers that stiffen and crack below −20 to −30 °C, cross-linked EI2/EM9 silicone rubber remains supple down to −60 °C.

Are H05SS-F and H05SST-F halogen-free?

Yes. Both the EI2 core insulation and EM9 outer sheath are halogen-free per IEC 60754-1/2 and evolve low smoke density per IEC 61034-2.

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03Message for our engineers

Silicone Rubber Multicore High Temperature Cable

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Reel & motion:
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