A 2.5mm single core cable is a type of electrical cable that consists of a single solid copper conductor with PVC insulation. It is typically used in wiring applications where a single conductor is needed, such as in lighting circuits, power outlets, and appliance connections.

Key features:

Single core: The cable has only one conductor, which is suitable for applications that require a simple circuit.
2.5mm diameter: The conductor has a diameter of 2.5mm, which is a common size for general-purpose wiring.
Black PVC insulation: The cable is insulated with black PVC, which provides good protection against electrical shock and abrasion.
Flexible: The cable is flexible, making it easy to install in tight spaces.
Wide range of applications: The cable can be used in a variety of applications, including residential, commercial, and industrial settings.