Technical data
Length packaging	0.300m
Length	25m
Weight	3.540kg
Side B	Earthing contact female
Packing	Retail
Height packaging	0.100m
Variant	Straight
Side A	CEE7/4 plug (Schutzkontakt)
Width packaging	0.300m
Colour	Black
Packaging volume	0.0090m³
Diameter	3G1.5mm²
UL

The KOPP rubber extension cord is a 25 metre long power extension with a protective earth plug and socket, designed for use in areas with increased requirements for mechanical and electrical safety. The product features robust rubber insulation and is equipped with a CEE 7/4 plug (Type F) and a protective earth socket, ensuring a safe and reliable power supply. The cable consists of type H05RR-F with a nominal conductor cross-section of 3G1.5 mm², enabling a nominal voltage of 230 V and a nominal current of 16 A. The sheath colour is black, and the outer diameter is approximately 9.4 mm.

Applications
This extension cord is suitable for indoor use and in slightly damp environments, as it has protection class IP44. This means it is protected against solid foreign objects (e.g. dust) and splashing water from any direction. The extension cord is therefore suitable for workshops, construction sites, warehouses or other industrial environments where flexible power supply over long distances is required. The use of rubber as sheath material ensures high mechanical strength and flexibility, facilitating handling and storage.

Functions and Equipment in Detail
The extension cord is fitted with a protective earth plug (CEE 7/4) at one end and a protective earth socket at the other. Both connections are straight, enabling a direct and stable connection. The cable includes a protective earth conductor, which enhances electrical safety and provides a safe path for fault currents in the event of a fault. The cable construction is not spiral, ensuring uniform and stable cable guidance.

Technology Explained Simply
The cable type H05RR-F is a flexible, oil-resistant rubber cable suitable for industrial and commercial applications. The cross-section of 1.5 mm² per conductor allows for safe current transmission up to 16 A, sufficient for most stationary devices and tools. Protection class IP44 protects against solid foreign objects and splashing water, making the extension cord suitable for use in damp or dusty environments. The frequency specification of 50–50 Hz refers to the nominal frequency of the power grid in Germany and Europe. The cable is not oil-resistant according to EN IEC 60811-404, meaning it is not intended for direct contact with oil-containing substances.

Compatibility and Accessories
The extension cord is compatible with all sockets and devices that support the CEE 7/4 plug connection type (Type F). The protective earth socket allows connection to additional protective earth plugs, enabling a chain of extensions or devices to be connected. The extension cord is not bound to any specific plug system, allowing universal use.

Installation and Mounting
Installation involves simply plugging the CEE 7/4 plug into a suitable socket and then connecting devices to the protective earth socket. The straight cable entry at both ends facilitates connection and ensures stable positioning. The extension cord is not intended for outdoor use or in heavily damp environments, as protection class IP44 does not provide full weather resistance. The extension cord is not intended for use in explosive environments.

Operational Advantages
The extension cord provides a reliable power supply over a length of 25 metres, reducing the need for additional sockets or power boosters. The use of rubber as sheath material ensures high flexibility and mechanical strength, extending the service life of the extension cord. Protection class IP44 offers sufficient protection against dust and splashing water, making the extension cord suitable for a wide range of applications. The extension cord is easy to handle and requires no special tools or mounting aids for installation.