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Product

General rubber flexible cablesEN 50525-2-21U0/U 450/750 V+90 °C EI7 · EM7 HOFR

H07BN4-F Heat-Resistant Rubber CableHarmonised 450/750 V +90 °C EI7 EPR-insulated and EM7 CSP heavy-duty HOFR cable

Heavy-duty 450/750 V (0.6/1 kV fixed protected) heat-resistant flexible rubber cable to EN 50525-2-21 with Class 5 copper conductors, +90 °C EI7 EPR core insulation and EM7 CSP (HOFR) outer sheath for generators, loadbanks, welding sets and hot plant.

Oil-resistant

Flame-retardant

Ozone, UV & moisture

+90 °C Heavy HOFR

Cores × cross-section

Order designation: H07BN4-F 4G25
Outer Ø min: 28.0 mm
Outer Ø max: 30.4 mm
Weight ≈: 1,760 kg/km
Min. bend R: 122 mm

Check against my drum All sizes (23)

Request a quote Datasheet WhatsApp

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

Rated voltage: 450/750 V
Conductor temp.: +90 °C max.
Ambient temp.: −25…+90 °C
Bending radius: 4–8 × OD
Compounds: EI7 / EM7
Size range: 1.5–240 mm²

Typical values for this cable type, based on EN 50525-2-21 (HD 22.12) — confirmed in the datasheet and quotation for your order.

Application fit

Is H07BN4-F right for your machine?

H07BN4-F is the +90 °C HOFR upgrade to H07RN-F, delivering higher continuous ampacity and thermal ageing stability on generator rental fleets, transformers and hot industrial machinery.

Trailing & towing

Suitable

Temporary power distribution, generator loadbanks, site transformers and mobile heavy industrial plant.

Fixed installation

Suitable

Rated up to 0.6/1 kV in protected cable trays, conduits, motor terminal boxes and switchgear.

Festoon & line chain

Suitable

Crane festoons and hoist loops operating in high-ambient steelworks, foundries and boiler houses.

Motorised monospiral reel

With conditions

Suitable for slow coiling drums; for high-speed motorised crane reels, select NSHTÖU.

Use NSHTÖU Reeling

Typical machinesGenerator rental & loadbank leadsSteelworks, foundries & boiler plantHeavy construction & quarry powerShipyards, dry docks & port powerTransformer & motor hook-up leads

Construction

Layer by layer

Shown: H07BN4-F 4G25 — Class 5 copper conductors, +90 °C EI7 EPR core insulation (HD 308 S2 colour code) and black +90 °C EM7 CSP (HOFR) outer sheath.

Schematic, not to scale — generated from the layer data

#	Layer	Material & reference
1	Flexible copper conductor	Fine-stranded bare or tinned copper wire (IEC 60228 Class 5)EN 60228 Class 5
2	Separator tape	Non-hygroscopic polyester foil separator over conductor on larger cross-sectionsFacilitates clean stripping
3	Heat-resistant EPR insulation	Cross-linked ethylene-propylene elastomer Type EI7 (+90 °C)EN 50363-1 EI7
4	Heavy-duty HOFR outer sheath	Cross-linked chlorosulphonated polyethylene (CSP) / elastomer Type EM7, blackEN 50363-2-1 EM7 (+90 °C · oil, UV & flame resistant)

H07BN4-F Single-Core (1×1.5–1×240)

High-current single-core power tails for generators, loadbanks and busbar links (0.6/1 kV protected)

H07BN4-F Multicore (2–5C, 1.5–95)

Multi-core heavy-duty trailing and machine feeder cables with HD 308 S2 colour-coded cores

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on EN 50525-2-21 (HD 22.12). Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U: 450/750 V AC (0.6/1 kV fixed protected)
Max. operating voltage: 495/825 V AC (up to 1000 V AC protected)
AC test voltage: 2500 V AC (50 Hz, 15 min)
Conductor stranding: IEC 60228 Class 5 fine-stranded copper
Current rating basis: DIN VDE 0298-4 / BS 7671 (+90 °C thermoset rating)

Thermal

Max. conductor temperature: +90 °C continuous operation
Short-circuit temperature: +250 °C max. (up to 5 s)
Temperature, flexing: −25 °C to +90 °C
Temperature, fixed: −40 °C to +90 °C

Mechanical

Min. bending radius, fixed: 4 × OD (OD ≤ 25 mm) · 6 × OD (OD > 25 mm)
Min. bending radius, moving: 6 × OD (OD ≤ 25 mm) · 8 × OD (OD > 25 mm)
Max. tensile load: 15 N/mm² dynamic (50 N/mm² static)
Mechanical impact class: Heavy mechanical duty (EN 50565-2)

Resistance

Oil & fuel resistance: EN 60811-404 mineral oils, diesel & hydraulic fluids (EM7)
Flame retardance: IEC 60332-1-2 / EN 60332-1-2 self-extinguishing
Heat & ozone endurance: EM7 CSP sheath resists +90 °C thermal ageing & EN 60811-403 ozone
Water exposure: AD6/AD7 outdoor rain, washdown and temporary immersion

Reference standards

Construction standard: EN 50525-2-21 (HD 22.12 S2 / BS 7919 / DIN VDE 0285-525-2-21)
Compound standards: EN 50363-1 Type EI7 & EN 50363-2-1 Type EM7 (HOFR)
Selection & installation: EN 50565-1 / BS 7671
RoHS & REACH: 2011/65/EU (RoHS 2) & EC 1907/2006 compliant

Identification

Sheath colour: Black
Core identification: HD 308 S2 colour code (up to 5 cores)
Sheath marking: TEBAOFLEX H07BN4-F <HAR> [Size] 450/750V 90°C EN 50525-2-21 CE
Customs tariff (HS): 8544.49 (insulated conductors ≤ 1000 V)

Sizes

23 standard H07BN4-F configurations

Typical EN 50525-2-21 (HD 22.12) outer diameter limits, copper content and cable weight.

Dimensions & weights
Order designation	Cores × mm²	AWG ≈	Outer Ø min mm	Outer Ø max mm	Copper kg/km	Weight ≈ kg/km	Min. bend R mm
Single-core H07BN4-F power & loadbank leads (16–240 mm²)
H07BN4-F 1×16	1×16	6	9.9	10.8	154	235	43
H07BN4-F 1×35	1×35	2	13.2	14.3	336	445	57
H07BN4-F 1×50	1×50	1	15.2	16.5	480	620	66
H07BN4-F 1×70	1×70	2/0	17.1	18.6	672	835	74
H07BN4-F 1×95	1×95	3/0	19.3	21.0	912	1,110	84
H07BN4-F 1×120	1×120	4/0	21.3	23.2	1,152	1,380	93
H07BN4-F 1×185	1×185	350 kcmil	25.8	28.0	1,776	2,060	112
H07BN4-F 1×240	1×240	500 kcmil	29.0	31.5	2,304	2,650	126
Multicore H07BN4-F heavy-duty power & control cables (3G1.5–4G50)
H07BN4-F 3G1.5	3G1.5	16	9.0	9.8	43	135	39
H07BN4-F 4G1.5	4G1.5	16	9.9	10.8	58	168	43
H07BN4-F 5G1.5	5G1.5	16	10.9	11.9	72	205	48
H07BN4-F 3G2.5	3G2.5	14	10.7	11.6	72	198	46
H07BN4-F 4G2.5	4G2.5	14	11.8	12.8	96	245	51
H07BN4-F 5G2.5	5G2.5	14	13.1	14.2	120	305	57
H07BN4-F 4G4	4G4	12	13.6	14.8	154	355	59
H07BN4-F 5G4	5G4	12	15.1	16.4	192	438	66
H07BN4-F 4G6	4G6	10	15.5	16.8	230	485	67
H07BN4-F 5G6	5G6	10	17.3	18.8	288	598	75
H07BN4-F 4G10	4G10	8	20.1	21.8	384	845	87
H07BN4-F 4G16	4G16	6	23.2	25.2	614	1,190	101
H07BN4-F 4G25	4G25	4	28.0	30.4	960	1,760	122
H07BN4-F 4G35	4G35	2	31.5	34.2	1,344	2,320	137
H07BN4-F 4G50	4G50	1	36.4	39.6	1,920	3,190	158

Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
Dimensions and weights are typical values per EN 50525-2-21 (HD 22.12). Minimum fixed bending radius shown is 4 × OD.

Electrical & current ratings
Cross-section mm²	AWG ≈	Max. DC resistance 20 °C, Ω/km	1-core in air 30 °C, A	3–4 core in air 30 °C, A
1.5	16	13.3	23	18
2.5	14	7.98	30	25
4	12	4.95	41	34
6	10	3.3	53	44
10	8	1.91	74	61
16	6	1.21	99	82
25	4	0.78	131	108
35	2	0.554	162	135
50	1	0.386	202	168
70	2/0	0.272	250	207
95	3/0	0.206	301	250
120	4/0	0.161	352	292
185	350 kcmil	0.106	461	382
240	500 kcmil	0.08	540	453

Current ratings at 30 °C ambient in free air per DIN VDE 0298-4 / EN 50565-1. Apply derating factors for elevated ambient temperature or reeling layer grouping.

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)

Drum core 300 mm ≥ 244 mmBending radius OK (4 × OD 30.4 mm)

Minimum bending radius: 122 mm
Min. drum core diameter: ≈ 244 mm
Cable weight on drum: 88.0 kg
Copper content: 48.0 kg

Indicative only: based on the datasheet outer diameter and 4 × 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 voltage test	2.5 kV AC (50 Hz)	Every manufactured length
Conductor DC resistance	IEC 60228 Class 5 (bare copper)	Every manufactured length
Sample tests
Vertical flame propagation	IEC 60332-1-2 / EN 60332-1-2	Per production batch
Insulation & sheath elastomer physical properties	EN 50525-2-21 (HD 22.12)	Type approval

Inspection certificate

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

Product approvals

EN 50525-2-21 (HD 22.12)CE · RoHS 2 (2011/65/EU) · REACH

Company certificates

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

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX H07BN4-F 450/750 V 90°C [Size] EN 50525-2-21 CE

Delivery form: Export wooden drums or coils, cut-to-length on request
Packaging: Heat-treated ISPM-15 timber drums with sealed cable ends
Conductor / sheath options: Custom core counts, pilot cores or sheath colours on request

Technical documents

Downloads

PDFH07BN4-F Heat-Resistant Rubber Cable – technical datasheet23 sizes · construction, technical data, approvals XLSXH07BN4-F spec data (Excel)All 23 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 do generator rental companies and loadbank engineers specify H07BN4-F over H07RN-F?

Under EN 50525-2-21 Table 1, harmonised H07RN-F is rated for a +60 °C maximum conductor temperature, whereas H07BN4-F uses +90 °C EI7 EPR insulation and a +90 °C EM7 CSP (HOFR) outer sheath. That 30 °C higher thermal ceiling allows substantially higher continuous current per cross-section under BS 7671 / DIN VDE 0298-4, reducing cable weight on high-ampere temporary power runs.

What does HOFR mean in relation to H07BN4-F?

HOFR stands for Heat and Oil Resistant and Flame Retardant (per BS 7919 / EN 50525-2-21). Both the EI7 EPR core insulation and the EM7 chlorosulphonated polyethylene (CSP) outer sheath withstand +90 °C continuous heat, EN 60811-404 mineral oil contact and IEC 60332-1-2 vertical flame testing.

Can single-core H07BN4-F cables be used at 0.6/1 kV?

Yes. Per EN 50565-1, H07BN4-F is rated 450/750 V for general flexible trailing duty and up to 0.6/1 kV (600/1000 V AC) in fixed, mechanically protected installations such as generator enclosures, transformer cubicles and cable trays.

Are Powerlock or lugged H07BN4-F assemblies available?

We supply H07BN4-F on bulk wooden export drums (500 m or 1000 m) as well as cut-to-length single-core and multicore assemblies terminated with crimped tinned-copper lugs, single-pole high-current connectors or industrial CEE plugs.

Request a quote

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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

H07BN4-F Heat-Resistant Rubber Cable

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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Datasheet Request a quote

H07BN4-F Heat-Resistant Rubber CableHarmonised 450/750 V +90 °C EI7 EPR-insulated and EM7 CSP heavy-duty HOFR cable

Trailing & towing

Fixed installation

Festoon & line chain

Motorised monospiral reel

H07BN4-F Single-Core (1×1.5–1×240)

H07BN4-F Multicore (2–5C, 1.5–95)

Electrical

Thermal

Mechanical

Resistance

Reference standards

Identification

Check results

Inspection certificate

Product approvals

Company certificates

01Selected sizes

02Reel & motion

03Message for our engineers

H07RN-F

H05BN4-F

NSSHÖU

H07BB-F