H07RN-8-F EN 50525-2-21 Flexible Rubber Cable
The H07RN-8-F EN 50525-2-21 Flexible Rubber Cable is a versatile, heavy-duty flexible cable designed for demanding applications in harsh, wet environments. It features fine-stranded class 5 bare copper conductors for excellent flexibility and conductivity, EPR (ethylene propylene rubber) core insulation for high dielectric strength and thermal resistance (90°C continuous, 250°C short-circuit), an overall tinned copper braid screen (optional for some variants), and a robust polychloroprene (neoprene) outer sheath providing superior oil resistance, flame retardancy (IEC 60332-1), abrasion/chemical resistance, and weatherproofing. The AD8 rating ensures submersible performance up to 10 meters depth for continuous use in wet or underwater conditions. Compliant with EN 50525-2-21 and VDE 0285 standards, it offers mechanical robustness, ozone resistance, and long service life. The H07RN-8-F is ideal for mobile equipment, construction sites, mining, marine applications, and industrial power supply where flexibility, water immersion, and safety are critical.
- Voltage Rating(Uo/U) 450/750V
-
Temperature Rating
Fixed: -40°C to +60°C
Flexed: - 15°C to +60°C -
Minimum Bending Radius
Fixed: 4 x overall diameter
Flexed: 6 x overall diameter
Construction
Technical Specifications
Quality Control
Application
Construction
H07RN-8-F EN 50525-2-21 Flexible Rubber Cable Constrution
Conductor
Class 5 flexible copper conductor
Insulation
Rubber
Sheath
Rubber
Sheath Colour
Black
Manufacturer Standard
EN 50525-2-21, HD 22.4S3, CEI 20-19 Part 16, EN 60228, VDE 0295
Flame retardant
IEC/EN 60332-1-2
Core Identification
1 core: Black
2 core: Blue、Brown
3 core: Green/Yellow、Blue、Brown
4 core: Green/Yellow、Brown、Black、Grey
5 core: Green/Yellow、Blue、Brown、Black、Grey
6 core and above: Green/Yellow、Black 、White
2 core: Blue、Brown
3 core: Green/Yellow、Blue、Brown
4 core: Green/Yellow、Brown、Black、Grey
5 core: Green/Yellow、Blue、Brown、Black、Grey
6 core and above: Green/Yellow、Black 、White
Application
The H07RN-8-F Flexible Rubber Cable is suitable for use in dry, wet, or submerged environments. It can provide energy connections for equipment such as submersible pumps in freshwater depths of up to 10 meters and meet the safety requirements of explosive workplaces.
Technical Specifications
H07RN-8-F EN 50525-2-21 Flexible Rubber Cable
H07RN-8-F EN 50525-2-21 Flexible Rubber Cable Data Sheet
| No of Cores | Nominal Cross Section Area mm² |
Conductor Diameter mm |
Minimum Overall Diameter mm |
Maximum Overall Diameter mm |
Nominal Weight kg/km |
| 1 | 1.5 | 1.5 | 5.7 | 7.1 | 50 |
| 1 | 2.5 | 1.9 | 6.3 | 7.9 | 70 |
| 1 | 4 | 2.4 | 7.2 | 9 | 100 |
| 1 | 6 | 3 | 7.9 | 9.8 | 130 |
| 1 | 10 | 3.9 | 9.5 | 11.9 | 200 |
| 1 | 16 | 4.9 | 10.8 | 13.4 | 280 |
| 1 | 25 | 6.1 | 12.7 | 15.8 | 400 |
| 1 | 35 | 7.3 | 14.3 | 17.9 | 510 |
| 1 | 50 | 8.9 | 16.5 | 20.6 | 710 |
| 3 | 1.5 | 1.5 | 9.2 | 11.9 | 150 |
| 3 | 2.5 | 1.9 | 10.9 | 14 | 210 |
| 3 | 4 | 2.4 | 12.7 | 16.2 | 280 |
| 3 | 6 | 3 | 14.1 | 18 | 370 |
| 3 | 10 | 3.9 | 19.1 | 24.2 | 660 |
| 3 | 16 | 4.9 | 21.8 | 27.6 | 920 |
| 3 | 25 | 6.1 | 26.1 | 33 | 1360 |
| 3 | 35 | 7.3 | 29.3 | 37.1 | 1820 |
| 3 | 50 | 8.9 | 34.1 | 42.9 | 2500 |
| 4 | 1 | 1.2 | 9.2 | 11.9 | 150 |
| 4 | 1.5 | 1.5 | 10.2 | 13.1 | 190 |
| 4 | 2.5 | 1.9 | 12.1 | 15.5 | 260 |
| 4 | 4 | 2.4 | 14 | 17.9 | 350 |
| 4 | 6 | 3 | 15.7 | 20 | 460 |
| 4 | 10 | 3.9 | 20.9 | 26.5 | 830 |
| 4 | 16 | 4.9 | 23.8 | 30.1 | 1190 |
| 4 | 25 | 6.1 | 28.9 | 36.6 | 1720 |
| 4 | 35 | 7.3 | 32.5 | 41.1 | 2260 |
| 7 | 1.5 | 1.5 | 15 | 19 | 340 |
| 7 | 2.5 | 1.9 | 17.5 | 21.5 | 500 |
| 12 | 1.5 | 1.5 | 17.6 | 22.4 | 530 |
| 12 | 2.5 | 1.9 | 20.6 | 26.2 | 720 |
| 18 | 1.5 | 1.5 | 20.7 | 26.3 | 700 |
| 24 | 1.5 | 1.5 | 24.3 | 30.7 | 960 |
| 36 | 1.5 | 1.5 | 27.8 | 35.2 | 1360 |
Quality Control
H07RN-8-F EN 50525-2-21 Flexible Rubber Cable
Raw Material Test
Raw Material Test for H07RN-8-F EN 50525-2-21 Flexible Rubber Cable ensures heavy-duty quality and submersible performance. The structured process includes: Supplier Certification Review: Verify class 5 bare copper conductors meet EN 60228 for purity (>99.9% Cu), stranding, and conductivity; EPR insulation and neoprene sheath compounds certified to EN 50525-2-21 and VDE 0285 for electrical/mechanical properties. Conductor Analysis: Test copper for tensile strength (>200 MPa), elongation (>20%), conductivity (≥97% IACS), and surface quality to ensure flexibility and corrosion resistance. Insulation Testing: EPR insulation evaluated for tensile (>6.5 MPa), elongation (>300%), dielectric strength (>20 kV/mm), thermal aging (90°C/168h), oil resistance (EN 60811), and water absorption for AD8 submersible rating.
Process inspection
Process Inspection during manufacturing of H07RN-8-F EN 50525-2-21 Flexible Rubber Cable maintains precision and submersible quality. Steps include: Conductor Stranding: Monitor fine class 5 stranding for uniform lay length, compactness, and flexibility. Insulation Extrusion: Apply EPR insulation at controlled thicknesses; inline scanners, spark testers, and eccentricity monitors detect defects. Screening Application (if applicable): Braid tinned copper with precise coverage/tension. Outer Sheath Extrusion: Apply neoprene sheath; real-time checks on thickness, surface finish, adhesion, and integration. Continuous Monitoring: Track conductor resistance, insulation integrity, diameter, and preliminary submersible tests.
Finished Product
Finished Product Test confirms the H07RN-8-F EN 50525-2-21 Flexible Rubber Cable meets heavy-duty standards before shipment. The procedure includes: Visual & Dimensional Inspection: Examine full length for defects, uniformity, markings, and measure outer diameter/weight per meter. Electrical Tests: DC resistance, insulation resistance (>1000 MΩ·km), high-voltage withstand (4kV/5 min), and partial discharge. Mechanical Evaluation: Bending radius (4–6× OD), tensile strength, abrasion, tear, and crush resistance tested. Sheath & Insulation Performance: Oil immersion, flame retardancy (IEC 60332-1), thermal aging, and moisture resistance verified. Submersible & Environmental Validation: AD8 immersion test (10m water depth), ozone resistance, and UV aging confirmed.
Application
The H07RN-8-F EN 50525-2-21 Flexible Rubber Cable is suited for heavy-duty mobile equipment in construction, mining, marine ports, agricultural pumps, outdoor events, and industrial workshops requiring submersible AD8 rated, oil/abrasion resistant, flame-retardant flexible cable for power supply in wet, harsh, or temporary installations.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
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