Sheathed cable NYM-J
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NYM-J Sheathed Cable | Buy by the Meter or Ring – Top Prices & Fast Delivery
High-quality NYM-J sheathed cables for reliable fixed installations. Available in cross-sections from 1.5 mm² to 16 mm², fully compliant with DIN VDE 0250 Part 204. Ideal for dry, damp, and wet rooms as well as protected outdoor use.
What is NYM-J Cable?
NYM-J is a PVC-insulated and PVC-sheathed installation cable commonly used across Europe for fixed electrical wiring. The designation means:
- N: Standard cable per German VDE norms
- Y: PVC insulation
- M: PVC outer sheath
- -J: Includes green/yellow protective earth conductor
These cables have solid or stranded copper conductors, color-coded cores (VDE 0293), and a grey outer sheath (RAL 7035). They are flame-retardant (IEC 60332-1-2) and rated for 300/500V.
NYM-J vs NYM-O: Key Differences
| Feature | NYM-J | NYM-O |
|---|---|---|
| Protective Earth Conductor | Yes (green/yellow) | No |
| Typical Applications | General wiring with grounding (recommended for most installations) | Lighting or non-grounded circuits |
| Core Examples | 3x = Phase, Neutral, Earth | 3x = Three phases (no earth) |
Applications & Installation Tips
NYM-J cables are suitable for:
- Installation over, on, in, or under plaster
- Dry, damp, or wet rooms
- Masonry and concrete (not vibrated/tamped)
- Protected outdoor use (avoid direct sunlight)
- Not suitable for direct burial in soil
Best Practices:
- Secure with cable clips or conduits
- Respect minimum bending radius (6× outer diameter)
- Protect from UV in outdoor applications
- Follow local regulations (e.g., DIN VDE)
Technical Specifications
| Parameter | Details |
|---|---|
| Standards | DIN VDE 0250 Part 204, IEC 60332-1-2 |
| Conductor | Copper, Class 1 (solid) or Class 2 (stranded) |
| Insulation & Sheath | PVC |
| Voltage Rating | 300/500V |
| Temperature Range | -40°C to +70°C (fixed) |
| Sheath Color | Grey (RAL 7035) |
Frequently Asked Questions (FAQ)
Can NYM-J cable be used outdoors?
Yes, when protected from direct sunlight (e.g., in conduits). Not for direct burial.
Is NYM-J suitable for underground installation?
No – use NYY-J cables for direct burial.
What does the “-J” mean?
It indicates the inclusion of a green/yellow protective earth conductor.
Can NYM-J be embedded in concrete?
Yes, in standard masonry/concrete, but not in vibrated or tamped concrete.
Do you provide datasheets?
Yes – contact our team at 0221-42306965 for detailed manufacturer specifications.
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