CABLES FOR GENERATORS & MOTOR PUMPS

H07RN-F is a heavy-duty flexible rubber-insulated cable designed for demanding industrial and outdoor applications. Its robust construction makes it ideal for connecting generators and motor pumps where flexibility, mechanical resilience, and resistance to harsh conditions are essential.

PVC cables present several limitations in these environments — they harden and become brittle in cold conditions, soften and deform under heat, and degrade when exposed to oils or standing water. H07RN-F rubber cable, by contrast, uses a thermoset compound that maintains flexibility and mechanical integrity across a wide temperature range, from -40°C up to +60°C. Unlike PVC, H07RN-F resists deformation under thermal stress and holds up reliably against oils, fuels, and moisture — precisely the conditions found around generator sets and motor pump installations. For any heavy-duty or mobile application where PVC would compromise safety or service life, H07RN-F is the correct specification.

The H07RN-F cable is rated at 450/750V, making it suitable for the power supply connections of most portable and stationary generators and motor pump installations.

H07RN-F cables operate reliably between -40°C and +90°C, ensuring stable performance in outdoor generator installations, pump stations, and varying ambient conditions.

H07RN-F cables are manufactured in accordance with IEC 60245-4 and the harmonised HD 22.4 standard, ensuring consistent quality and performance across all European markets.

• H: Harmonized (European standard).
• 07: Voltage rating of 450/750V.
• R: Natural or synthetic rubber insulation.
• N: Polychloroprene (Neoprene) outer sheath.
• F: Flexible copper conductor (Class 5).

Due to its extreme flexibility and vibration resistance. Generators produce constant mechanical stress; a rigid cable would eventually crack or loosen at the terminals. H07RN-F absorbs these vibrations without degrading.

Yes. It is specifically designed to handle permanent contact with water. It is the industry standard for connecting pumps in wells, drainage systems, and irrigation, as it supports total immersion.

The Neoprene (N) sheath is highly resistant to oils, greases, and various chemicals. This is crucial in environments where combustion engines (generators) leak fuel or lubricants.

Yes. It is UV-resistant and weatherproof. It won’t crack under direct sunlight or become brittle in freezing temperatures (operating down to -40°C in mobile service).

Absolutely. It is built for heavy-duty industrial use, meaning it can be dragged over asphalt, rocks, or construction sites without the outer sheath tearing or compromising the internal insulation.

Selection depends on distance and starting current. Motor pumps have high “inrush” currents (3-5 times the nominal current). You must use a larger cross-section for long distances to avoid a voltage drop that could burn out the motor.

Yes, it is flame retardant (non-flame propagating). In the event of a short circuit or external fire, the rubber outer sheath helps prevent the cable from acting as a fuel source that spreads the fire.

Yes. The H07RN-F features a rubber outer sheath that provides excellent resistance to water, moisture, and weathering, making it well suited for outdoor pump stations and exposed generator installations.

Yes. The H07RN-F is specifically designed for flexible and semi-flexible applications. Its finely stranded copper conductors allow repeated bending and repositioning, making it ideal for mobile generator sets and portable pump equipment.

Yes. The mechanical robustness and flexibility of the H07RN-F make it a popular choice for trailing cable applications, where the cable must withstand repeated movement, dragging, and outdoor exposure without damage.

Yes. High-quality rubber cables (like AD8 standard) are designed to withstand moisture, rain, and UV rays. Some models even allow for permanent immersion in water, which is vital for outdoor festivals or flooded construction sites.

H07RN-F is technically suitable, but for hospital environments we recommend specifying the LSZH equivalent. H07ZZ-F delivers the same mechanical robustness and flexibility as H07RN-F while producing minimal smoke and no corrosive or toxic gases, making it the safer and more appropriate specification for backup generator connections in hospitals and other healthcare settings.

The rubber outer sheath provides excellent abrasion and impact resistance. While cable ramps (protectors) should always be used, rubber handles crushing stress and dragging much better than other materials.

No. Although very flexible, welding cables usually have a lower voltage rating (like H01N2-D) and are designed for specific duty cycles. For main power supply, you must use a cable rated for the system voltage (typically 450/750V).

Yes. Our H07RN-F submersible pump cables feature waterproof insulation and sheath compounds tested for continuous immersion, suitable for borehole, sewage, and water supply pump installations.

Cables should be sized to carry the motor’s full load current (FLC) continuously, with corrections for installation method, grouping, and ambient temperature per IEC 60364-5-52. Our technical team can assist.

Yes. We offer TOPDRIVE® VFD cables with symmetrical earth conductors and enhanced screening to reduce electromagnetic interference (EMI) from inverter switching, complying with IEC 60034-17 guidance.

Yes. We recommend XTREM® HO7RN-F flexible rubber cables for connections near generator sets where vibration is present, with anti-vibration gland selection guidance available from our technical team.

Yes. We offer robust, highly flexible trailing cables suitable for temporary power distribution from mobile generator sets at events, construction sites, and disaster recovery applications.

Yes. We have supplied cables to major power generation facilities, pumping stations, and critical infrastructure projects internationally.