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Underground cable NYY-J 10 mm²

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Erdkabel NYY-J Starkstromkabel Set

Underground Cable NYY-J 5x10 mm² – High-Power Cable for Direct Burial & Demanding Projects

Searching for powerful NYY-J 5x10 mm² underground cable (also called erdkabel 5x10 or 5x10 erdkabel) for large construction sites, heavy machinery, research facilities, or robust main supplies in Germany? At ekabel24, electrical contractors, construction companies, renovation firms, and research centers receive premium-quality NYY-J power cable – sold by the meter, in 25 m / 50 m / 100 m coils, or on request as drum stock at competitive B2B rates.

Why NYY-J 5x10 mm² Is the Ideal Underground Cable for Professionals & High-Load Applications

The NYY-J 5x10 mm² (5-core, 5G10 or 5 x 10 mm² erdkabel) is the proven power cable for higher loads and permanent underground energy distribution. It excels in:

  • Main house and commercial connections, large meter cabinets, and sub-distributions
  • Construction sites with high power demand (cranes, concrete mixers, site containers)
  • Machinery and equipment connections in industry, workshops, and production halls
  • Research facilities, test benches, and laboratories requiring stable continuous loads
  • Large-scale renovations, outdoor installations, charging stations, or major PV systems
  • Direct burial in soil, concrete, or underwater (no additional mechanical protection needed per VDE)

Technical Specifications – NYY-J 5x10 mm² Underground Cable

PropertyValue
Number of Cores & Cross-Section5 x 10 mm² (5G10)
Conductor MaterialCopper (Cu), bare, solid class 1
Insulation & SheathPVC, black, flame-retardant
Nominal VoltageU₀/U 0.6/1 kV
Test Voltage4 kV
Operating Temperature (Fixed Installation)-40 °C to +70 °C
Operating Temperature (During Installation)-5 °C to +70 °C
Maximum Conductor Temperature+70 °C (continuous)
Approximate Outer Diameter19–22 mm (typically ~20–21 mm, depending on manufacturer)
Standards & ApprovalsDIN VDE 0276-603, HD 603 S1, VDE-certified, flame-retardant per IEC 60332-1-2
Installation NoteDirect burial in ground recommended (sand bedding + warning tape)
Current-Carrying Capacity (Typical, Direct Burial)approx. 75–85 A per phase (at 20 °C soil temperature, per VDE tables; project-specific values apply)

Available Lengths & Purchasing Options – Buy NYY 5x10 Underground Cable

Choose the right quantity for your project – from medium sites to large-scale jobs:

  • 25 m Coil – ideal for targeted connections
  • 50 m Coil – common for electrical companies and mid-size projects
  • 100 m Coil – popular for extensive installations (“erdkabel 5x10 100m”)
  • By the Meter – cut to exact length starting from 1 m (also 5 m, 10 m, 20 m available)
  • Large Drums – on request for major projects and continuous use

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 / Austria from €1,000.

Frequently Asked Questions about NYY-J 5x10 mm² Underground Cable (FAQ)

Is NYY-J 5x10 mm² suitable for direct burial without conduit?

Yes, according to VDE 0276-603, the NYY-J underground cable is approved for direct burial. Recommended: 10–15 cm sand bedding, cable warning tape, and sufficient cover for mechanical protection and traceability.

What is the outer diameter of NYY-J 5x10 mm²?

The outer diameter is approximately 19–22 mm, typically around 20–21 mm (varies slightly by manufacturer). Check the exact drawing or contact support for precise values.

What is the current-carrying capacity of the 5x10 mm² erdkabel?

For direct burial (20 °C soil temperature) approx. 75–85 A per phase (based on VDE 0276-603 tables). In air, significantly lower (around 55–65 A). Exact ratings depend on installation method, grouping, and environment – consult a qualified electrical planner for your project.

Difference between NYY-J and NYY-O for 5x10 mm²?

NYY-J includes a green-yellow protective earth conductor (5th core), while NYY-O has black numbered cores without separate earth coloring. NYY-J is the standard for most applications in Germany.

Can NYY 5x10 underground cable be used indoors?

Yes, approved for fixed indoor and outdoor installations. For flexible indoor use, NYM-J or similar is often preferred due to easier handling.

What temperature ranges apply to NYY-J 5x10?

Fixed installation: -40 °C to +70 °C; 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 for instant wholesale prices and 0% VAT (business customers in Germany, Austria, Belgium, Netherlands). Additional discounts from €5,000 order value.

Is the 5x10 mm² erdkabel VDE-certified and compliant?

Yes, complies with DIN VDE 0276-603 (HD 603 S1), flame-retardant per IEC 60332-1-2, and carries VDE approval marks.

What applications suit NYY-J 5x10 particularly well?

Best for higher power needs: large construction sites, machinery hookups, research labs, stable commercial supplies, EV charging stations, or major solar installations – where 5x2.5 or 5x6 is insufficient.

Still have questions about buying erdkabel 5x10? Our support team is happy to advise electrical contractors, construction companies, and research facilities personally and project-specific!