H07RN-8-F Flexible Rubber Cable 450/750V Heavy Duty Submersible Pump & Industrial Power Cable (EN 50525-2-21)
Cable Type | H07RN-8-F EN 50525-2-21 Flexible Rubber Cable |
Application | For installation in dry, damp, or wet environments, including workshops with explosive atmospheres. Can be immersed in fresh water up to 10m depth. Suitable for submersed pumps, moderate mechanical stress applications, industrial/agricultural apparatus, electric tools, portable motors and generators, and fixed installations along floors or shelving. Not suitable for underwater power transmission, waterways, or high mechanical risk areas. Rated up to 1kV for protected fixed installations and rotor connections for lifting equipment motors. |
Voltage Rating (U/Uo) | 450/750V |
Temperature Rating | Fixed: -40°C to +60°CFlexed: -15°C to +60°C |
Minimum Bending Radius | Fixed: 4 × overall diameterFlexed: 6 × overall diameter |
Conductor | Class 5 flexible copper conductor |
Insulation | Rubber |
Sheath | Rubber |
Core Identification | 1 core: Black 2 core: Blue, Brown 3 core: Green/Yellow, Blue, Brown 4 core: Green/Yellow, Blue, Brown, Grey 5 core: Green/Yellow, Blue, Brown, Black, Grey 6 core and above: Black with White numbers, Green/Yellow |
Sheath Colour | Black |
Standards | EN 50525-2-21, HD 22.4S3, CEI 20-19 Part 16, EN 60228, VDE 0295 Flame Retardant according to IEC/EN 60332-1-2 |
Dimensions
No. of Cores | Nom. Cross Section (mm²) | Conductor Dia. (mm) | Min. Overall Dia. (mm) | Max. Overall Dia. (mm) | Nom. 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 | 9.0 | 100 |
1 | 6 | 3.0 | 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 | 14.0 | 210 |
3 | 4 | 2.4 | 12.7 | 16.2 | 280 |
3 | 6 | 3.0 | 14.1 | 18.0 | 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 | 33.0 | 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 | 14.0 | 17.9 | 350 |
4 | 6 | 3.0 | 15.7 | 20.0 | 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 | 15.0 | 19.0 | 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 |
What Is H07RN-8-F Submersible Cable and Why Is It Widely Used?
H07RN-8-F is a heavy-duty flexible rubber cable designed for harsh industrial environments and submersible pump applications. Manufactured in accordance with EN 50525-2-21, it combines high flexibility, excellent mechanical strength, and strong resistance to moisture, oil, and environmental stress.
Unlike conventional rubber cables, H07RN-8-F is specifically engineered to operate safely in wet conditions and can be immersed in fresh water up to 10 meters deep. This makes it a preferred choice for submersible pumps, industrial machinery, construction sites, and agricultural equipment.
From a technical perspective, H07RN-8-F represents a balance between flexibility, durability, and electrical performance—three critical factors in modern industrial power transmission.
How Does H07RN-8-F Compare with Other Rubber Cables?
Comparison Table: H07RN-8-F vs H07RN-F vs H05RN-F
Feature | H07RN-8-F | H07RN-F | H05RN-F |
|---|---|---|---|
Rated Voltage | 450/750 V | 450/750 V | 300/500 V |
Water Immersion | Up to 10 m | Limited | Not recommended |
Mechanical Strength | Very High | High | Medium |
Flexibility | Excellent | Excellent | Good |
Typical Applications | Submersible pumps, heavy industry | Industrial tools, machinery | Light industrial equipment |
Standard | EN 50525-2-21 | EN 50525 | EN 50525 |
Key Insight:
H07RN-8-F stands out for submersible and heavy-duty applications where water resistance and mechanical robustness are critical.
Where Is H07RN-8-F Cable Typically Used?
What Are the Main Industrial Applications?
H07RN-8-F is widely used in:
Submersible pumps and water treatment systems
Construction sites
Industrial machinery and automation systems
Agricultural equipment
Portable generators and motors
Lifting equipment and cranes
Why Is It Suitable for Submersible Pumps?
Key technical reasons:
Rubber sheath provides superior waterproof performance
Flexible conductor withstands vibration and movement
High mechanical resistance reduces risk of damage
Stable electrical performance under load
However, it is important to note that H07RN-8-F is not designed for permanent underwater power transmission in waterways or areas with high mechanical impact risk.
What Should Be Considered When Selecting H07RN-8-F Cable?
How to Choose the Right Cross-Section?
Key factors:
Load current
Cable length and voltage drop
Installation method
Ambient temperature
Safety margin
For example:
Small pumps: 1.5–4 mm²
Medium industrial equipment: 6–16 mm²
Heavy-duty pumps: 25–50 mm²
Why Is Cable Dimension Important?
Cable dimensions affect:
Current-carrying capacity
Heat dissipation
Mechanical strength
Installation flexibility
Selecting the wrong size can lead to overheating, voltage drop, or premature failure.
Frequently Asked Questions (FAQ)
Is H07RN-8-F a true submersible cable?
Yes, it is suitable for immersion in fresh water up to 10 meters depth. However, it is not intended for permanent underwater transmission in waterways or high-impact environments.
Can H07RN-8-F be used for voltages above 750 V?
In general, H07RN-8-F is rated for 450/750 V.
In some protected fixed installations, it may be used up to 1 kV, but this depends on local regulations and installation conditions.
What is the difference between H07RN-8-F and mining cables?
Mining cables usually have:
Higher voltage ratings
Additional mechanical protection (armour)
Stronger chemical resistance
H07RN-8-F focuses on flexibility and moderate mechanical protection rather than extreme mining conditions.
Is H07RN-8-F resistant to oil and chemicals?
Yes. The rubber sheath provides good resistance to oils and many industrial chemicals, making it suitable for harsh environments.
How long does H07RN-8-F cable typically last?
Service life depends on:
Installation quality
Environmental conditions
Mechanical stress
In typical industrial applications, it can last 8–15 years or longer with proper maintenance.
Why Is H07RN-8-F a Strategic Choice for Industrial and Submersible Applications?
From an engineering perspective, H07RN-8-F is not just a flexible cable—it is a critical component of reliable power systems in demanding environments.
Its combination of:
High flexibility
Strong mechanical resistance
Excellent water resistance
Stable electrical performance
makes it an optimal solution for submersible pumps and industrial power transmission.
For Indonesian industries facing humid climates, heavy mechanical loads, and continuous operation, H07RN-8-F offers a cost-effective and technically reliable solution.
Call-to-Action (CTA)
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