Round installation cable YDY 3x2.5 mm² 450V – single-core flexible wiring, yellow-white

Round installation cable YDY 3x2.5 mm² 450V is a three-conductor fixed wiring cable with individual insulated conductors inside a round outer sheath. Rated for use at up to 450 V, the cable provides a 2.5 mm² conductor cross-section suitable for common household and light commercial circuits. Its single-core flexible conductors allow for straightforward routing in conduit, trunking or cable ducts and are intended for indoor installations such as lighting circuits, socket outlets and general-purpose wiring.

Advantages

The cable combines standardized conductor cross-section and voltage rating for compatibility with typical installation practices. Individual insulated cores in a round sheath enable easier pulling through conduits compared with flat cable designs, while maintaining clear separation of phases and neutral. The 2.5 mm² conductor area supports standard circuit protection and typical load demands for lighting and socket circuits. The product is designed for fixed, permanent indoor installation where mechanical protection and proper routing are provided.

Suitable for

• Indoor lighting circuits and ceiling rose connections
• Socket outlet circuits in residential and light commercial premises
• General-purpose fixed wiring in conduits, trunking or cable ducts
• Rewiring or new installations requiring a 3x2.5 mm² cable

Key specifications

• Conductors: three individually insulated single-core conductors
• Conductor cross-section: 2.5 mm² per conductor
• Voltage rating: 450 V
• Outer shape: round sheath for easier conduit installation
• Intended use: fixed indoor electrical installations for lighting, sockets and general circuits

How to use

Plan the route ensuring the cable is protected by conduit, trunking or other mechanical protection suitable for fixed wiring. Strip the outer sheath and individual conductor insulation following safe electrical practices and national wiring regulations. Connect conductors to the appropriate terminals—live, neutral and earth—ensuring secure, low-resistance connections and correct polarity. Fasten and support the cable at regular intervals to prevent strain and movement. Use appropriate cable clamps and grommets where the cable passes through walls or panels.

Recommendations

Use this cable only for fixed indoor installations in dry, protected environments. Verify compatibility with local electrical codes, select correct overcurrent protection for circuits using 2.5 mm² conductors, and have connections carried out or inspected by a qualified electrician.