Overview
| Model NO. | NYM NYM-J NYM-O | Application | Domestic & Commercial Wiring,Damp Indoor Premises,residential expansion loops |
| Voltage | Low Voltage | Conductor | Copper |
| Insulation Material | PVC | Jacket | PVC |
| Material Shape | Round | Temperature |
-20°C~70°C
|
| Certification | ISO, CCC, CE, RoHS, VDE | Conductor Type | Class 1 (Solid) |
| Brand | ZhongYI | Voltage Type | 300/500 V |
| Company Name | ZHONGYI Cable Co., Ltd | CORE | 1,2,3,4,5,7 |
| Transport Package | Plastic Packaging and Cardboard Boxes | Specification | 1.5-35mm² |
| Origin | HEBEI China | Color | Grey |
NYM NYM-J NYM-O Cable Core Technical Specifications & Data Sheet
| Nominal cross-sectional area (mm²) | Common AWG | Conductor structure (No./single wire diameter mm) | Nominal insulation thickness (mm) | Average outer diameter (mm) | Max DC resistance of conductor at 20 ℃ (Ω/km) | Approx. weight kg/km |
|---|---|---|---|---|---|---|
| 1.5 | 16 | 1/1.38 | 0.6 | 8.4 | 12.1 | 115 |
| 2.5 | 14 | 1/1.78 | 0.8 | 9.8 | 7.41 | 160 |
| 4 | 12 | 1/2.25 | 0.8 | 11.3 | 4.61 | 220 |
| 6 | 10 | 1/2.76 | 0.8 | 12.6 | 3.08 | 295 |
| 10 | 8 | 1/3.57 | 1.0 | 15.4 | 1.83 | 470 |
| 16 | 6 | 1/4.50 | 1.0 | 18.0 | 1.15 | 680 |
Features
NYM NYM-J NYM-O Cable Comparison Table
| Model Code | Protective Earth (PE) Core | Core Color Identification (VDE 0293-308) | Typical Application Scenarios |
|---|---|---|---|
| NYM | General Product Name | Varies by specific type (-J or -O) | The overarching family for VDE standard round PVC moisture-resistant installation cables. |
| NYM-J | YES (With Green-Yellow Earth) | 3-Core example: **Green-Yellow**, Blue, Brown. | Most common indoor power circuits, wall outlets, and lighting grids requiring grounding safety. |
| NYM-O | NO (Without Earth Core) | 3-Core example: Brown, Black, Grey. | Control/signal circuits, double-insulated systems, or installations where PE is not needed. |
VDE Certified Quality: Fully manufactured and compliance-tested according to the strict German DIN VDE 0250-204 standards.
Moisture-Resistant Design: Features a specialized inner bedding layer, making it highly safe for damp indoor environments.
Flame Retardant: Formulated with self-extinguishing PVC insulation and outer jacket to prevent fire propagation.
Easy Stripping & Handling: Smooth inner filling compound allows fast stripping, drastically reducing installation time on sites.
Application
Domestic & Commercial Wiring: The standard choice for power, lighting, and switch circuits in houses, offices, and hotels.
Damp Indoor Premises: Safe for fixed installations in areas prone to humidity, such as kitchens, laundry rooms, and bathrooms.
Versatile Surface Laying: Can be installed on, in, or under wall plaster, embedded inside concrete, or run through cable ducts.
Certification
Factory
FAQ
1. What is the explicit technical distinction between NYM-J and NYM-O cables under VDE rules?
Protective Earth (PE) Core Allocation:
The foundational difference lies entirely in the integration of a grounding wire, coded by European VDE 0293-308 standards. The ‘NYM-J’ variant features a dedicated Green-Yellow protective earth (PE) core alongside the active phase lines, engineered explicitly for power outlets, appliance grounding, and circuits requiring strict electrical safety. Conversely, ‘NYM-O’ contains no earth core (composed typically of Brown, Black, and Grey phase lines), making it ideal for double-insulated machinery, localized control links, or switch circuits where a ground wire is unnecessary.
2. Why is the NYM series highly recommended for damp indoor premises and wall plastering?
Moisture-Resistant Inner Bedding Layer:
Under German DIN VDE 0250-204 manufacturing standards, our NYM installation cable incorporates a specialized, non-hygroscopic rubber or unvulcanized polymer filling compound between the inner insulation and the outer sheath. This structural matrix acts as a highly effective moisture-resistant barrier, allowing contractors to safely install the wire in highly humid rooms like commercial kitchens, laundries, and bathrooms. It can be run directly on surfaces, embedded inside concrete, or routed under wall plaster without risk of decay.
3. What does the full 'NYM' nomenclature represent regarding its physical material composition?
German VDE Standardization Coding:
Under the standard European cable classification framework, the letters map out its physical layers: ‘N’ states that the wire is manufactured strictly according to German VDE standards; ‘Y’ signifies premium Polyvinyl Chloride (PVC) compound used for the internal core insulation; ‘M’ represents a moisture-resistant sheathed installation line (Mantelleitung); while the suffix ‘-J’ or ‘-O’ defines the grounding layout. This strict adherence ensures full compliance during municipal infrastructure bidding.
4. How does the conductor type selection of your NYM cable optimize site termination speeds?
Annealed Copper Pliability & Easy Stripping:
Our NYM-J / NYM-O cables utilize 99.99% pure, oxygen-free annealed copper conductors designed as Class 1 solid cores (RE) for smaller cross-sections (1.5mm² to 10mm²) or Class 2 stranded compacted conductors (RM) for larger capacities. This engineering ensures maximum continuous ampacity and low DC resistance. Furthermore, the internal bedding compound is formulated to prevent sticking to the outer jacket, allowing electricians to strip the wire cleanly in seconds, heavily shaving down on-site deployment labor.
5. What wholesale cross-sections and project logistics packaging do you support for B2B orders?
Heavy-Duty Engineering Packaging & Global Transit:
As an established B2B wire manufacturer, we supply NYM series installation cables in multi-core clusters (spanning 1 to 7 cores) across standard cross-sectional profiles from 1.5 mm² up to 35 mm². To shield the flame-retardant PVC jacket from abrasion or structural tearing during long-distance maritime sea freight transit, bulk wholesale orders are wound securely in 100-meter easy-pull plastic film coils packaged inside heavy cardboard boxes, or rolled onto robust wooden reels, backed by complete routine factory test reports.
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