Underground Cable NYY-J 5x6 mm, 5x10 mm, 5x16 mm Comparison
Which One Fits Your Project?
Introduction
When planning house connections, EV charging stations, PV systems or commercial installations, the choice often comes down to NYY-J underground cables in the cross-sections 5x6 mm², 5x10 mm² or 5x16 mm².
This comparison shows you the key differences, typical use cases and what to consider in 2026.
Quick Decision Matrix 2026
| Criteria | 5x6 mm² | 5x10 mm² | 5x16 mm² |
|---|---|---|---|
| Typical Application | 11 kW Wallbox, small house connection, garden shed | 22 kW Wallbox, larger homes, small commercial | High-power applications, large charging stations, industry |
| Max. Continuous Load | approx. 40–50 A | approx. 60–70 A | approx. 80–100 A |
| Recommended Fuse | 40–50 A | 63 A | 80–100 A |
| Price per Meter (approx.) | €3.80 – €4.90 | €5.90 – €7.50 | €8.50 – €11.00 |
| Best-selling Length | 25 m / 50 m | 25 m / 50 m | 25 m / 50 m |
Real-World Applications 2026
1. EV Charging (Wallbox)
- 11 kW Wallbox: 5x6 mm² is usually sufficient
- 22 kW Wallbox: Choose 5x10 mm² or 5x16 mm²
2. House Connection
- Single-family home → 5x6 mm² or 5x10 mm²
- Multi-family or high consumption (heat pump + Wallbox) → 5x10 mm² or 5x16 mm²
3. Photovoltaics & Storage
For inverter connections and large storage systems we recommend at least 5x10 mm², for very large installations 5x16 mm².
Recommended Lengths
| Length | 5x6 mm² | 5x10 mm² | 5x16 mm² |
|---|---|---|---|
| 25 m | Very good | Good | Good |
| 50 m | Best Seller | Best Seller | Very good |
| 100 m | Good | Good | Only if needed |
Installation Tips
- Burial Depth: Minimum 60–80 cm (depending on local regulations)
- Conduit Protection: Highly recommended (PE pipe 50–63 mm)
- Additional Protection: Sand bed + warning tape
- All NYY-J cables at ekabel24 are VDE-certified
Direct Product Recommendations
Best Seller: NYY-J 5x6 mm² Underground Cable
Buy 5x6 mm² Underground Cable →
High Power: NYY-J 5x10 mm² Underground Cable
Buy 5x10 mm² Underground Cable →
Heavy Duty: NYY-J 5x16 mm² Underground Cable
Buy 5x16 mm² Underground Cable →
Frequently Asked Questions (FAQ)
Which underground cable for a 22 kW Wallbox?
Recommended: 5x10 mm² or 5x16 mm², depending on cable length.
Can NYY-J be buried directly in the ground?
Yes, it is approved for direct burial. Using a protection conduit significantly increases durability.
What is the difference between RM and RE?
RM = stranded (more flexible), RE = solid (cheaper and stiffer).
Do you offer quantity discounts?
Yes – attractive wholesale prices for orders from 100 m and for business customers.