Electrical conduit Onnline RL-28S 28 mm, 3 m, silver, pack of 15

Onnline RL-28S is a rigid electrical conduit with an internal diameter of 28 mm and a standard length of 3 m, supplied as a pack of 15 pieces. The silver finish provides a neutral appearance suitable for visible installations while the rigid construction offers reliable mechanical protection for cables and wires used in residential, commercial and light industrial electrical installations. The product is intended for routing, protecting and organising conductors where a stable, non-flexing conduit is required.

Advantages

The rigid 28 mm conduit offers consistent internal clearance for multiple insulated conductors and cable bundles while maintaining a straight, stable run. Its durable construction protects cables from mechanical impacts and abrasion, and the smooth internal surface enables easier pulling of wires. Supplied in 3 m lengths and packaged in a set of 15 pieces, the product reduces handling time on site and simplifies inventory management for larger projects.

Suitable for

• Routing power and control cables in residential and commercial buildings
• Protecting cables in corridors, utility rooms and service shafts
• Creating fixed wiring runs behind panels, in ceilings and under raised floors
• Use where non-flexible, rigid conduit is preferred for mechanical stability

When it may not be suitable

This rigid conduit is not intended for applications requiring frequent bending or dynamic movement; flexible conduit or cable trays may be more appropriate in those cases. It is also not a substitute for conduit systems that require specific mechanical ratings, chemical resistance or fire-rating certifications beyond general mechanical protection.

Key specifications

• Internal diameter: 28 mm
• Length per piece: 3 m
• Finish: silver
• Material type: rigid conduit (hard-walled)
• Pack quantity: 15 pieces

How to use

Select the appropriate conduit length and route it along the planned wiring path, supporting it at regular intervals with clips or brackets suitable for the conduit diameter. Cut to length where necessary using a suitable cutting tool and deburr the cut ends to avoid damaging cable sheaths. Use compatible fittings, couplers and entry glands to join sections and transition to enclosures, junction boxes or devices. Pull cables through the conduit using standard cable-pulling techniques, lubricants where permitted, and ensure bends meet minimum bend-radius requirements for the cables in use.

What to consider before purchase

• Confirm that a 28 mm internal diameter provides sufficient space for the number and type of conductors to be installed
• Consider mounting and support spacing for 3 m rigid lengths in your installation environment
• Check compatibility with intended fittings, couplers and entry accessories
• Ensure the silver finish and rigid construction meet aesthetic and mechanical requirements for the project

Usage recommendations

For best results, plan conduit routes to minimise sharp bends, use proper supports at recommended intervals, and verify cable fill and bend radius requirements before installation. When joining pieces, use manufacturer-recommended couplers and seals to maintain mechanical protection and to prevent moisture ingress where necessary.