Underground cable NYY-J 2.5 mm²
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Content: 25 Meter (€2.30* / 1 Meter)
Content: 50 Meter (€2.30* / 1 Meter)
Content: 25 Meter (€1.42* / 1 Meter)
Content: 100 Meter (€1.42* / 1 Meter)
Content: 50 Meter (€1.42* / 1 Meter)
Content: 100 Meter (€2.39* / 1 Meter)
Content: 500 Meter (€2.35* / 1 Meter)
Content: 500 Meter (€1.42* / 1 Meter)
5% discount for orders over €5000
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Underground Cable NYY-J 5x2.5 mm² – Power Cable for Direct Burial & Professional Installations
Looking for reliable NYY-J 5x2.5 mm² underground cable (also known as erdkabel 5x2 5 or 5x2.5 erdkabel) for construction sites, renovations, or electrical projects in Germany? At ekabel24, electrical contractors, construction companies, and business customers get high-quality NYY-J power cable – sold by the meter, in 25 m / 50 m / 100 m coils, or on 500 m drums at competitive B2B prices.
Why NYY-J 5x2.5 mm² Is the Go-To Underground Cable for Professionals
The NYY-J 5x2.5 mm² (5-core, 5G2.5) is the standard power cable for safe, long-term underground power distribution. It excels in:
- House connections, meter cabinets, and main distributions
- Construction site power supply, machinery connections, and cranes
- Garden and outdoor lighting, garages, sheds, pond pumps
- Renovation projects and commercial property extensions
- Direct burial in soil, concrete, or underwater (no extra mechanical protection required per VDE)
Technical Specifications – NYY-J 5x2.5 mm² Underground Cable
| Property | Value |
|---|---|
| Number of Cores & Cross-Section | 5 x 2.5 mm² (5G2.5) |
| Conductor Material | Copper (Cu), bare, solid class 1 |
| Insulation & Sheath | PVC, black, flame-retardant |
| Nominal Voltage | U₀/U 0.6/1 kV |
| Test Voltage | 4 kV |
| Operating Temperature (Fixed Installation) | -40 °C to +70 °C |
| Operating Temperature (During Installation) | -5 °C to +70 °C |
| Approximate Outer Diameter | 12–15 mm (typically ~14 mm, depending on manufacturer) |
| Standards & Approvals | DIN VDE 0276-603, HD 603 S1, VDE-certified, flame-retardant per IEC 60332-1-2 |
| Installation Note | Direct burial in ground recommended (use sand bedding + warning tape) |
Available Lengths & Purchasing Options – Buy NYY 5x2.5 Underground Cable
Select the right quantity for your project – from small renovations to large-scale jobs:
- 25 m Coil – perfect for smaller sites
- 50 m Coil – most popular length for electrical companies (“erdkabel 5x2 5 50m”)
- 100 m Coil – for larger installations
- By the Meter – cut to exact length starting from 1 m
- 500 m Drum – best price for bulk buyers and ongoing projects
B2B Advantages at ekabel24: Wholesale pricing, 0% VAT for EU business customers (DE, AT, BE, NL), volume discounts from €5,000, free shipping within Germany from €500.
Frequently Asked Questions about NYY-J 5x2.5 mm² Underground Cable (FAQ)
Is NYY-J 5x2.5 mm² suitable for direct burial without conduit?
Yes, per VDE 0276-603, the NYY-J underground cable can be buried directly. We recommend a sand bedding layer (approx. 10–15 cm) and cable warning tape for mechanical protection and easy location.
What is the difference between NYY-J and NYY-O?
NYY-J includes a green-yellow protective earth conductor (5th core), while NYY-O has no separate earth color coding (all cores black with numbering). NYY-J is the standard choice for most residential and commercial installations in Germany.
What is the outer diameter of the 5x2.5 mm² erdkabel?
The outer diameter is approximately 12–15 mm (typically around 14 mm, depending on the manufacturer). Check the exact drawing or contact our support for precise values.
Can I use NYY 5x2.5 underground cable indoors as well?
Yes, it is approved for fixed indoor and outdoor installations. However, NYM-J is often preferred indoors because it is more flexible and easier to handle.
What are the temperature ratings of the cable?
Fixed installation: -40 °C to +70 °C; during short-term movement: -5 °C to +70 °C. Maximum continuous conductor temperature: 70 °C.
From what order value do I get B2B prices or 0% VAT?
Register a free B2B account to unlock wholesale prices and 0% VAT immediately (for business customers in Germany, Austria, Belgium, Netherlands). Additional volume discounts apply from €5,000 order value.
Is the 5x2.5 mm² erdkabel VDE-certified and compliant?
Yes, it complies with DIN VDE 0276-603 (HD 603 S1), is flame-retardant per IEC 60332-1-2, and carries VDE approval marks.
What is the current-carrying capacity of NYY-J 5x2.5?
For direct burial in soil, typically around 30–38 A per phase (depending on installation method, grouping, and ambient temperature). Refer to VDE tables or consult a qualified electrician for exact project values.
Still have questions about buying erdkabel 5x2 5? Contact our support – we’re happy to advise electrical contractors and construction companies personally!