RR Building Wire 4.0mm² Single Core
The RR Building Wire 4.0mm² Single Core is a heavy-duty single-core conductor for power circuits, sub-mains, and high-load fixed wiring in UAE commercial and industrial buildings. Available in Black, Blue, Red, Yellow, and Yellow/Green, it covers all phase, neutral, and earth requirements. Sold per metre.
Key Features
- 4.0mm² conductor for circuits up to 32A
- Full colour range: Black, Blue, Red, Yellow, Yellow/Green
- PVC insulation for conduit, trunking, and tray installations
- Sold per metre for flexible project ordering
- Genuine RR Cables quality
Technical Specifications
| Specification |
Details |
| Brand |
RR Cables |
| Conductor Cross-Section |
4.0mm² |
| Cores |
1 |
| Insulation |
PVC |
| Voltage Rating |
450/750V |
| Standard |
BS 6004 |
| Available Colours |
Black, Blue, Red, Yellow, Yellow/Green |
| Unit |
Per Metre |
| Coil Packing |
100m standard coil (longer lengths available on request) |
| Operating Temperature |
-15°C to 70°C |
Applications
- Shower, cooker, and high-load appliance circuits
- Sub-main distribution wiring
- Commercial and industrial power distribution
- Earth bonding conductors (Yellow/Green)
FAQ
-
What does the 4.0mm² cross-section rating mean, and how do I pick the right size for my circuit?
The mm² figure is the conductor's copper cross-sectional area, which determines how much current the wire can safely carry and its voltage drop over distance. Larger cross-sections carry higher currents over longer runs. Confirm the correct size for your circuit's load and cable length against the applicable wiring regulations (or ask our technical team) before ordering — this listing is for the conductor itself, not a substitute for a proper circuit design.
-
Can I order an exact length, and how is the price calculated?
Yes — this wire is sold per metre, so you enter the exact quantity of metres you need at checkout and are charged accordingly. There's no minimum roll or coil requirement; order 5 metres or 500.
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What's the difference between Single-Core Building Wire and RR Kabel's Flexible Panel Wire?
Building Wire uses a solid or low-strand-count conductor designed for fixed, permanent installation in walls, conduit, and trunking. Flexible Panel Wire uses a finer, multi-strand flexible conductor designed for movement and repeated flexing inside control panels and switchboards. Use Building Wire for fixed circuit wiring; use Flexible Panel Wire for panel/control cabinet internal wiring.
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Does this need to be installed by an electrician?
Yes. Fixed building wiring must be installed and terminated by a licensed electrician in line with UAE wiring regulations — this is a supply-only conductor, not a DIY plug-and-play product.
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Why do the colours (Red/Yellow/Blue/Black) matter, and can I mix colours in one order?
Colour-coding identifies phase, neutral, and circuit function so an electrician can trace and safely isolate circuits later. You can order any mix of colours and lengths in the same purchase — each colour is simply a separate variant of the same 4.0mm² wire.
