Sheathed cable NYM-J 4 mm²
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Content: 25 Meter (€3.43* / 1 Meter)
Content: 50 Meter (€3.25* / 1 Meter)
Content: 100 Meter (€3.43* / 1 Meter)
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NYM-J 4 mm² Cable – Best Prices and Fast Shipping at Ekabel24.de
The NYM-J 4 mm² cable (also known as PVC sheathed installation cable or NYM-J 5x4mm²) is the trusted European standard fixed wiring cable for professional electrical installations. With a 4 mm² cross-section per core, it is ideal for installation above, on, in, and under plaster in dry, damp, and wet areas, as well as in masonry and concrete (except vibrated or tamped concrete). Suitable for outdoor use when protected from direct sunlight — but not for direct burial in the ground.
NYM-J 4 mm² cable at Ekabel24.de – competitive prices from approx. €3.04/m (depending on length and quantity), cut-to-length meterware, free shipping from €500 and 5% B2B volume discount from €5,000. VDE-certified to DIN VDE 0250-204 – premium quality trusted by professional electricians, electrical contractors, construction companies and industrial buyers.
Technical Specifications of NYM-J 4 mm² Cable
This PVC installation cable meets the highest safety standards (DIN VDE 0250-204, VDE 0293, IEC 60332-1). Plain copper conductors (Class 1 solid), PVC core insulation and grey PVC outer sheath (RAL 7035). Rated voltage U₀/U 300/500 V. Operating temperature: fixed -40 °C to +70 °C, during installation -5 °C to +70 °C.
| Property | Value (5x4 mm² – most common variant) |
|---|---|
| Number of cores / Marking | 5 cores (brown, black, grey, blue, green-yellow) per VDE 0293 |
| Outer diameter approx. | 14.2–15.5 mm |
| Weight approx. | 336 kg/km |
| Test voltage | 2,000 V |
| Flame retardant | According to VDE 0482-332-1-2 |
| Bending radius (fixed) | Approx. 4 x outer diameter |
Current Carrying Capacity (according to DIN VDE 0298-4 – indicative values)
| Installation Method | Capacity (5x4 mm² approx.) |
|---|---|
| Method B2 (under plaster / in conduit) | 32–36 A |
| Method C (on wall / cable tray) | 30–34 A |
| Method E (free air) | 40–44 A |
Note: Always verify exact values with a qualified electrician — dependent on ambient temperature, grouping and installation method. Perfect for 25–32 A protection.
Applications – Why Professionals Choose NYM-J 4 mm² Cable
This robust PVC sheathed installation cable offers excellent reserve capacity for high-load circuits and is the first choice across industries:
- Electrical contractors & service companies: Sub-mains to distribution boards, sockets and lighting in new builds and refurbishments.
- Construction & renovation companies: Installation in masonry, concrete and plaster — ideal for modern building services.
- Industrial companies: Fixed wiring of machinery, control panels and switchgear in factories.
- Van conversion & camper builders: Safe 230 V interior wiring (protected mounting) for motorhomes and custom conversions.
- Research centres & laboratories: Reliable power supply for sensitive equipment and test benches.
Popular uses also include electric cooker connections, sauna heaters, EV charger (Wallbox) installations up to 7–8 kW, commercial buildings and public facilities. Not suitable for direct ground burial — use NYY-J underground cable instead.
B2B Advantages at Ekabel24.de
Electricians, contractors and industrial buyers benefit from cut-to-length meterware, dedicated B2B accounts with custom pricing, 5% volume discount from €5,000 and fast delivery. Expert technical hotline available Monday–Friday 9–16 hrs.
Frequently Asked Questions (FAQ) about NYM-J 4 mm² Cable
Is the NYM-J 4 mm² cable suitable for direct burial in the ground?
No – it is not approved for direct earth installation. Use purpose-designed underground cables such as NYY-J or NYY-O.
Which installation methods are permitted for NYM-J 4 mm² cable?
Above, on, in and under plaster, in dry, damp and wet rooms, in masonry and concrete (except vibrated/tamped). Outdoors only when protected from direct sunlight.
What is the current carrying capacity of NYM-J 5x4 mm² cable?
Approx. 30–36 A depending on installation method (per DIN VDE 0298-4). Suitable for 25–32 A circuit protection — always dimension professionally.
What does the “J” in NYM-J stand for?
“J” indicates the integrated green-yellow protective earth conductor. NYM-O versions do not have one.
Can NYM-J 4 mm² cable be used for electric cooker or EV charger (Wallbox) connections?
Yes – the 4 mm² cross-section provides ample reserve for high-power appliances up to 7–8 kW. Extremely popular with professional installers.
What temperature range does the NYM-J cable withstand?
Installation from +5 °C, operating temperature -40 °C to +70 °C (fixed). Short-circuit temperature up to 160 °C.
Are there volume discounts and B2B benefits at Ekabel24?
Yes – 5% discount from €5,000, free shipping from €500 (DE) / €1,000 (AT) and VAT-exempt B2B accounts for eligible businesses.
Is NYM-J 4 mm² cable suitable for van conversions and camper builds?
Yes – perfect for protected 230 V interior wiring in motorhomes and custom vans. Many professional converters rely on this robust cable.
How does NYM-J differ from other cables (e.g. H07V-K or NHXMH)?
NYM-J is the standard sheathed installation cable — mechanically stronger and easier to install than single-core wires. Flame-retardant and optimised for damp areas.
Have questions about your specific project? Contact our expert team — we are happy to advise on lengths, variants and alternatives.