Cables & wires
What is the structure of an H07RN-F cable?
The stranded wires of the H07RN-F rubber cable are made of fine-wire bare copper in accordance with VDE 0295, Class 5 in accordance with the HAR Standard and are in layers. HAR stands for Europe-wide harmonised labelling and means that it is a “harmonised cable”.
The cores of the stranded wire are insulated by rubber compound of type EI 4 in accordance with the European Standard (EN) 50363-1. The diameter of the cable depends on the number of cores and their cross-section.
The individual cores are encased in a rubber compound made from polychloroprene (CR) of type EM 2 in accordance with EN 50363-2-1. This material is better known as neoprene. It is characterised by its chemical resistance and its flame-retardant properties. From six cores, the individual cores are labelled with white numbers (DIN VDE 0293) .
The rubber cable also shows flame-retardant and self-extinguish properties in case of fire and is largely oil-resistant. The H07RN-F rubber-sheathed cable can be used in a temperature range from -25°C to 60°C. The nominal voltage amounts to 450 V/750 V.
This means that, when protected and permanently installed, the cable can be operated with the following nominal voltage: up to 1000 V alternating voltage and a direct voltage of up to 750 V against the earth.
What does H07RN-F stand for?
The numbers and letters of the cable type H07RN-F provide information about the purpose and the construction of the rubber cable.
- H - For example, the "H" stands for “harmonised cable in accordance with HAR”.
- 07 - The “07” stands for the “permissible current-carrying capacity” of the H07RN-F wires. This is a nominal voltage of 450 V between the conductor and the earth or 750 V between the phase conductors.
- R - The letter “R” refers to the “material of the core insulation” - in this case rubber.
- N - The “N” identifies the “material of the cable sheath”, which is made of rubber (chloroprene rubber) in this wire.
- F - The suffix “F” after H07RN indicates that this cable is a “fine-wire” rubber-sheathed cable.
Suffix after the cable type designation:
- 3 - the number of cores
- x or G - x = no protective conductor / G = with a yellow and green protective conductor
- 1.5 - conductor cross-section in mm²
The information that follows the type designation tells you the number of cores and the conductor cross-section. The wire cross-section is stated in mm². For example, the H07RN-F 3x1.5 cable has a cross-section of 1.5mm² and a total of 3 cores. The "x" in the designation stands for cable "without protection conductor".
If this were a cable "with protective conductor", there would be a "G" between the number of cores and the cable cross-section. The "G" stands for green-yellow - which in turn in the colour of the protective conductor. Consequently, the cable designation would be H07RN-F 3G1.5.
Areas of application for H07RN-F cables
The heavy-duty rubber cable H07RN-F is used as a terminal and control cable overwhelmingly in industry and agriculture. For example, it is reliably used as construction cables, for machine tools and in device construction just as well as in hand tools and power packs and for hand-held lights and tools. As a result of the robust properties, the cable also connects refrigeration units or is used as a ground cable at events for supplying various electrical devices and mobile objects with electricity.
What is the difference between an H07RN-F and an H05RN-F wire?
The type H05RN-F is similar to the H07RN-F, but is used to connect electrical appliances and machines with lower voltages. While the H07RN-F wire has a rated voltage of 450/750 V, the H05RN-F wires only have a rated voltage of 300/500 V.
What types of cable are there in the area of rubber cables
| Cable type | Rated voltage Uo/U | Feature |
| H01N2-D | 100/100V | Welding lead |
| H05RN-F | 300/500V | |
| H05BQ-F | 300/500V | PUR jacket |
| H07RN-F | 450/750V | |
| H07BQ-F | 450/750V | PUR jacket |
| H07RN8-F | 450/750V | Water depth up to 10m |
| NSSHÖU | 600/1000V | Extremely robust |
| NSGAFÖU | 1.8/3kV |
Overview of the H07RN-F wires (cross-section, core number and outer diameter)
