Key Takeaways
- The H07RN-F rating covers a working voltage of 450/750V, with the ability to reach 0.6/1KV
- The H07RN-F temperature rating spans from -40°C for fixed installations to +90°C maximum conductor operating temperature
- Class 5 H07RN-F conductors are made from annealed flexible stranded bare or tinned copper, giving the cable outstanding flexibility
- The H07RN-F cable is resistant to oils, UV, sunlight, water, and abrasion, making it one of the toughest portable cables available
- It is approved to VDE, BS 6195, and IEC 60092-353, confirming its compliance with strict international safety standards
- Raiden Electric supplies certified H07RN-F cable across the UK for industrial, portable, and heavy-duty applications
One wrong cable choice can affect the entire setup, and H07RN-F is exactly where performance details are really important.
When selecting a cable, you have to focus only on cost, which can lead to serious performance issues later. Factors like insulation quality, conductor design, and current capacity play a major role in long-term reliability.
The H07RN-F rating is widely trusted across the UK and Europe for heavy-duty flexible rubber cables used in construction, industrial setups, and outdoor applications. Despite its popularity, many buyers are unclear about its full technical specification and what each feature actually means.
This blog will cover the complete H07RN-F cable data sheet, which helps you to choose the right cable for your project.
Let’s start by understanding what an H07RN-F cable is and where it is commonly used in real-world applications.
What Is H07RN-F Cable and What Is It Used For
Before diving into technical details, it helps to understand where this cable is actually used.
H07RN-F is a heavy-duty flexible rubber cable designed for tough working conditions. It is built to handle environments where regular cables would quickly wear out or fail. Its strength comes from a balance of flexibility and durability, which makes it ideal for setups that involve movement, outdoor exposure, mechanical stress, or contact with oils and chemicals.
This cable is commonly used with equipment like generators, electrical tools, pumps, transformers, welders, kitchen appliances, and audio or video systems. It is especially useful for portable and mobile equipment that needs reliable power without the risk of damage.
You will also find it in demanding environments such as construction sites, factories, workshops, water treatment systems, and cold storage areas.
In all these situations, the main requirement is a cable that keeps working reliably even when conditions are harsh and unpredictable.
Now that you know where this cable is used, it’s time to look at what actually powers its performance in real conditions. The next step is understanding the H07RN-F rating and how its voltage capability supports these demanding applications.
How Do Voltage and Operating Limits Work in the H07RN-F Rating
The first thing professionals check in the H07RN-F rating is its voltage, as this defines the type of electrical systems the cable is suitable for.
H07RN-F cables are rated at 450/750V. This value is part of the cable’s name, where “07” represents 0.7 kV in the harmonised system, which aligns with the standard 450/750 V rating.
In some cases, the cable can also be used at 0.6/1 kV, but only when the installation includes proper protection. This allows the cable to be used in a wider range of fixed and industrial setups where higher voltage support is needed.
Overall, this voltage capability makes H07RN-F suitable for most single-phase and three-phase applications commonly used in construction and industrial environments across the UK.
With the voltage side covered, the next thing that really impacts performance is how the cable handles heat and cold in real conditions.
Let’s break down the H07RN-F temperature rating to see how it performs across different environments.
How Does the H07RN-F Temperature Rating Perform?
One of the most important things to understand when specifying any cable is its temperature capability. The H07RN-F temperature rating covers several different scenarios, and getting these right matters for safety and long-term performance.
- Maximum conductor operating temperature in normal use:
For mobile installations: +60°C
For fixed, protected installations: +90°C
- Maximum conductor temperature during a short circuit: +250°C
- Lowest ambient temperature for fixed installation: -40°C
- Lowest ambient temperature for mobile installation: -25°C
These figures tell you several important things. The cable stays functional in freezing conditions, which is critical for outdoor and cold environment applications. At the upper end, the conductor can reach 90°C in a fixed protected installation without damage to the insulation or sheath. The short circuit temperature of 250°C reflects the thermal capability of the EPR insulation, which handles fault conditions without immediate failure.
For anyone working in cold storage, outdoor winter applications, or any environment where temperature extremes are a regular reality, the H07RN-F temperature rating gives clear confidence that the cable is designed to cope.
The H07RN-F temperature rating proves why this cable performs reliably in both extreme cold and high-heat environments.
Now that temperature performance is clear, let’s move forward to understand the H07RN-F current rating and conductor construction and how they impact overall cable efficiency.
How Does H07RN-F Conductor Construction Affect Current Rating?
Before selecting any flexible power cable, it’s important to understand how its current capacity and internal design work together. These factors directly influence how safely and efficiently the cable performs in real-world conditions. With H07RN-F cables widely used, having clarity on their construction and load-handling ability helps in making the right choice.
What Affects the H07RN-F Current Rating?
The H07RN-F current rating is mainly influenced by three factors: the size of the conductor, the installation method, and the surrounding temperature. As the conductor cross-section increases, the cable can safely carry more current. That’s why H07RN-F cables are available in multiple sizes to suit different load requirements across various applications.
Conductor Construction and Its Role
The performance of the cable is closely linked to how the conductor is built. These cables use annealed flexible stranded copper, available in both bare and tinned forms, and follow EN 60228 standards. The Class 5 H07RN-F design refers to fine-stranded conductors that are specifically made for flexibility.
This construction allows the cable to bend and move repeatedly without internal damage. It’s especially useful in environments where cables are frequently handled, repositioned, or exposed to mechanical stress.
Bare Copper vs Tinned Copper Conductors
The choice of conductor material can make a difference depending on where the cable is used. Bare copper is widely used for general applications, while tinned copper provides added protection against oxidation. This makes it a better option for humid, damp, or marine environments where corrosion resistance is important.
Select the Right Cable Size
Choosing the correct size is essential for safe and efficient performance. The H07RN-F cable current rating should always be checked against standard reference tables such as BS 7671. When selecting a cable, factors like actual current load, cable length, voltage drop, and ambient temperature must all be considered to ensure proper operation.
The right combination of conductor design and sizing plays a key role in how well the cable performs over time.
With these basics in place, selecting the right H07RN-F cable becomes a lot more practical and reliable for any application.
Role of Ethylene-Propylene Rubber (EPR) in Cable Insulation
The insulation layer is the first protective barrier around each individual conductor, and the material used here has a direct effect on the H07RN-F temperature rating and its resistance to environmental factors.
Ethylene-Propylene Rubber (EPR) is a high-performance rubber compound that outperforms PVC in several key areas. It maintains its flexibility across a wide temperature range, which is why the cable can operate at -40°C in fixed installations without the insulation going brittle and cracking. At the upper end, EPR handles the elevated conductor temperatures that arise under load far better than standard PVC.
EPR also contributes to the cable’s resistance to partial discharge and its overall electrical insulation quality, which matters in high-demand industrial applications. The EI4 compound designation confirms a specific formulation within the broader EPR category, as defined by EN 50363-1.
This level of insulation performance means fewer risks of failure and longer service life under demanding conditions.
It is this reliability that makes EPR insulation a trusted choice when consistent performance and safety are truly important.
What Do Fillers and Separators Do in Flexible Cables?
For larger conductor cross-sections, the internal construction of the H07RN-F includes additional components that improve its physical integrity and handling characteristics.
Filler: For cable sizes of 10mm² and above, a rubber strip with cotton rope filler is applied between the insulated conductors.
Separator: A non-woven separator is applied between the insulated conductors and the jacket for sizes of 10mm² and above.
These elements serve practical purposes. The filler maintains the circular cross-sectional shape of the cable, which helps with coiling, routing, and connection to plugs and connectors. The non-woven separator provides a clean separation layer between the insulated cores and the outer jacket, which makes stripping and termination easier and reduces the risk of the jacket adhering to the core insulation over time.
What is a Chlorinated Polyethylene Rubber (CPE) Jacket?
The outer jacket of the H07RN-F is the most visible and physically tested part of the cable. It is what gets dragged across concrete, exposed to sunlight, splashed with oil, and subjected to mechanical impact daily in working environments.
Black, Chlorinated Polyethylene Rubber (CPE), type EM2 in accordance with EN 50363-2-1
CPE rubber is a strong sheath material that delivers the combination of properties the H07RN-F is known for. Understanding what CPE provides directly explains why the H07RN-F is resistant to oils and why it performs so well in outdoor and industrial conditions. CPE offers:
- Strong resistance to oils and greases
- Good UV and ozone resistance, protecting it from sunlight degradation
- Resistance to abrasion and mechanical wear
- Flexibility across a wide temperature range
- Resistance to water penetration
These are not minor features. In a construction or industrial setting, all of these properties are put to the test every single working day. The fact that the H07RN-F is resistant to oils means it can be used in machinery environments, near hydraulic equipment, on sites where lubricants are in regular use, and in agricultural settings without the sheath softening, swelling, or cracking.
The black colour is standard across the product range and provides additional UV protection compared to lighter-coloured sheathing materials.
In demanding environments, it is the outer jacket that often determines how long a cable will last. With this level of protection, H07RN-F is a dependable choice for tough conditions.
Why H07RN-F Performs Well Against Oils and Harsh Conditions?
This section deserves its own focus because the H07RN-F resistant to oils, which is one of the most frequently cited reasons for specifying this cable over alternatives. The H07RN-F cable is resistant to:
- UV and sunlight
- Water
- Oil and abrasion
Beyond these material resistances, the specification also confirms that the cable is submersible to 25 metres underwater. This is a significant capability that opens up a range of applications that would be completely unsuitable for standard outdoor cables. Water treatment plants, drainage installations, marina environments, and any setting where the cable might be submerged or regularly immersed are all valid applications.
The combination of oil resistance, UV resistance, water resistance, and submersibility makes the H07RN-F one of the most comprehensively protected flexible cable types available in the UK market.
How H07RN-F Performs in Fire and Flame Conditions?
The flammability performance of a cable matters both for safety certification and for compliance with installation standards on commercial and industrial projects.
EN 60332-1-2 is the standard for flame propagation testing of individual insulated wires and cables. Compliance with this standard confirms that the cable meets the minimum fire performance requirement for single cable flame propagation. This is the baseline requirement for cables used in fixed and portable applications across a wide range of industrial and construction settings.
What Certifications Ensure H07RN-F Cable Reliability?
When a cable is specified for a commercial, industrial, or public sector project, the standards it complies with are not optional details. They are compliance requirements that protect people, property, and the organizations responsible for the installation.
The H07RN-F from Raiden Electric complies with the following reference standards:
- EN 60228
- EN 50363-1
- EN 50363-2-1
- EN 60332-1-2
- IEC 60332-1-2
- DIN EN 50525-2-21
- DIN VDE 0282-4
The cable holds the following approvals:
- VDE (German electrical testing and certification body)
- BS 6195 21150 0.6/1 KV
- IEC 60092-353
The VDE approval is particularly significant because it represents one of the most rigorous independent certification schemes in the European cable industry. The BS 6195 approval confirms compliance with the British Standard for rubber-insulated cables. IEC 60092-353 covers cable requirements for shipboard and offshore applications, which reflects the cable’s suitability for marine environments.
Together, these certifications confirm that the Raiden Electric H07RN-F cable has been independently tested and approved to meet the standards that matter most for professional and industrial use in the UK.
How Core Identification and Circuit Configurations Work in H07RN-F
Understanding the core colour coding is essential for safe installation and compliance with wiring regulations. The Raiden Electric specification confirms the following standard core identification:
With Earth Core (G):
- 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 cores and above: Green/Yellow for earth, remaining cores Black with White numbering
Without Earth Core (X):
- 2 core: Blue, Brown
- 3 core: Brown, Black, Grey
- 4 core: Blue, Brown, Black, Grey
- 5 core: Blue, Brown, Black, Grey, Black
- 6 cores and above: Black with White numbering
These colour conventions follow the standard European harmonized scheme, which aligns with BS 7671 requirements for circuit identification. For anyone installing or terminating H07RN-F cable in the UK, these colours will be immediately familiar.
Bending Limits and Flexibility of H07RN-F Cable
The minimum bending radius of a cable determines how tightly it can be bent during installation or use without risking damage to the conductors or insulation. For a flexible cable like the H07RN-F, this is a practical consideration that affects how it is routed, stored, and used on site.
The Raiden Electric specification provides the following minimum bending radius data based on the outer cable diameter (D):
Fixed Installation:
- D ≤ 8mm: 3 x D
- 8mm < D ≤ 12mm: 3 x D
- 12mm < D ≤ 20mm: 4 x D
- D > 12mm: 4 x D
At Inlet of Portable Appliance or Mobile Equipment (No Mechanical Load):
- D ≤ 8mm: 4 x D
- 8mm < D ≤ 12mm: 4 x D
- 12mm < D ≤ 20mm: 5 x D
- D > 12mm: 6 x D
Under Mechanical Load:
- D ≤ 8mm: 6 x D
- 8mm < D ≤ 12mm: 4 x D
- 12mm < D ≤ 20mm: 5 x D
- D > 12mm: 8 x D
These figures show that the H07RN-F handles tight bending well for smaller diameters in fixed installations, with a minimum radius of just 3 times the cable diameter. Under mechanical load, the radius requirement increases, which is important for applications where the cable bends under tension or weight.
Following the correct bending radius in installation protects the long-term integrity of both the conductors and the insulation.
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Make the Right H07RN-F Cable Choice for Your Project
Are you not sure if your cable will truly perform under pressure? A well-informed selection is what keeps your system running without interruptions.
With a trusted H07RN-F rating, a dependable H07RN-F temperature rating, and a robust design that is fully H07RN-F resistant to oils, this cable is built for demanding environments where reliability matters most. Explore certified H07RN-F cables from Raiden Electric and find the exact match for your application with ease.
Review the full technical data, compare available options, and get expert support tailored to your needs.
Conclusion
The H07RN-F cable may appear like a standard heavy-duty rubber cable, but its design is built around precise specifications for demanding environments. It covers a wide voltage range from 450/750V up to 0.6/1KV in protected setups, along with a broad H07RN-F temperature rating that allows it to perform from extreme cold to high heat. Its Class 5 H07RN-F fine-stranded copper conductors add flexibility, while the durable CPE outer sheath provides resistance against oil, UV exposure, and moisture.
Along with this, factors like the H07RN-F current rating, bending limits, core identification, and compliance with key standards all contribute to its reliable performance. If your project requires a certified H07RN-F rubber cable, Raiden Electric offers the right support to help you choose based on your exact requirements.
FAQs
What is the H07RN-F rating in terms of voltage?
The standard H07RN-F rating is 450/750V, which covers the large majority of industrial and construction applications in the UK. According to the Raiden Electric specification, the H07RN-F cable may be rated at 0.6/1 kV where the installation includes built-in protection.
What does the H07RN-F temperature rating mean for cold environments and high-temperature applications?
The H07RN-F temperature rating covers a wide range from very cold to quite hot. For fixed installations, the cable can operate in ambient temperatures as low as -40°C without the insulation or sheath becoming brittle. For mobile installations, the lower limit is -25°C. At the upper end, the maximum conductor operating temperature is +60°C in mobile use and +90°C in fixed protected installations.
What is the H07RN-F current rating cable?
The H07RN-F current rating cable depends primarily on the conductor cross-section size, the installation method, and the ambient temperature. Thicker conductors can handle higher loads. It is built with Class 5 flexible copper strands as per EN 60228. This cable ensures consistent conductivity and durability, which play a key role in maintaining a stable H07RN-F cable current rating across different working conditions.
Why is the class 5 H07RN-F designation important?
The class 5 H07RN-F designation refers to the conductor classification under EN 60228. Class 5 means the conductor is made from fine-stranded annealed copper, either bare or tinned, specifically designed for flexible cable applications.
In what ways is the H07RN-F resistant to oils?
The H07RN-F is resistant to oils primarily because of its outer jacket material. Raiden Electric specifies a black Chlorinated Polyethylene Rubber (CPE) jacket to EN 50363-2-1, which provides strong resistance to oils, greases, UV, ozone, water, and abrasion.
Which standards confirm the safety and reliability of H07RN-F cables in the UK?
These cables meet several recognized standards, including EN 60228, EN 50363-1, EN 50363-2-1, EN 60332-1-2, IEC 60332-1-2, DIN EN 50525-2-21, and DIN VDE 0282-4. Compliance with these standards ensures consistent quality, safety, and performance, including maintaining the correct H07RN-F cable current rating in professional applications. To learn more about Raiden’s certified range, visit the products page or get in touch via the contact page.