NMWU Non-Metallic Sheathed Cable 300V | CSA Certified Copper Cable for Underground & Outdoor Use
Product Overview
The NMWU 300V Non-Metallic Sheathed Cable is a durable, flexible cable designed for outdoor and underground electrical installations. Certified to CSA C22.2 No. 48, it combines UV resistance, flame retardancy, and moisture protection, making it suitable for harsh environments in residential, commercial, and industrial projects.
Key Features
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CSA C22.2 No. 48 Certified: Compliant with Canadian safety standards.
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300V Copper Conductors: High-conductivity annealed copper (AWG 14-6).
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Direct Burial Approved: UV-resistant PVC jacket withstands soil and moisture.
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FT1 Flame Retardant: Passes vertical flame propagation tests (≤30s self-extinguishing).
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Temperature Range: Operates from -40°C to 60°C (installation at -40°C for 2-conductor cables).
Technical Specifications
| Parameter | Details |
|---|---|
| Voltage Rating | 300V |
| Conductor | Annealed copper (stranded/solid) + bare copper grounding |
| Insulation | Option 1: XLPE (90°C max) Option 2: PVC (70°C max) |
| Jacket | UV-resistant PVC (black) |
| Certifications | CSA C22.2 No. 48, FT1 Flame Test |
| Installation Temp | -40°C (2-conductor) |
Applications
Outdoor & Underground
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Direct Burial Wiring: Trenches without conduit (e.g., garden lighting, pathway circuits).
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Wet Locations: Parking lot lighting, marina docks, and pump stations.
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Solar Installations: Low-voltage connections for solar panels.
Industrial & Construction
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Temporary Power: Construction site equipment and portable generators.
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HVAC Systems: Outdoor condenser units and heat pumps.
Residential/Commercial
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Subpanel Feeds: Underground service entrances for garages or sheds.
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Landscape Lighting: Weatherproof circuits for gardens and driveways.
Why Choose NMWU Cable?
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Durability: PVC jacket resists abrasion, chemicals, and UV degradation.
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Cost Savings: XLPE insulation reduces long-term maintenance.
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Safety: FT1 flame retardancy minimizes fire risks in enclosed spaces.
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Flexibility: Stranded copper bends easily around obstacles.
Installation Guidelines
Pre-Installation
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Storage: Keep cables above 0°C for 24 hours before installation.
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Handling: Avoid sharp bends (follow CSA bending radius guidelines).
Environmental Limits
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Approved: Direct burial, outdoor exposed runs, wet/damp locations.
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Prohibited: High-temperature industrial zones (>90°C).
Conductor Sizing
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AWG 14-6: Recommended for cold climates (-40°C installations).
FAQ
Q: Can NMWU cable be used in conduit underground?
A: Yes, but its UV-resistant jacket allows direct burial without conduit.
Q: What is the lifespan of the PVC jacket?
A: Up to 25 years in standard soil conditions (pH 5–9).
Q: Is this cable compatible with solar panel systems?
A: Yes. Its 300V rating suits low-voltage solar applications.
Ordering Options
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Conductor Size: 14 AWG to 6 AWG.
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Insulation: XLPE (high-temp) or PVC (flexible).
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Length: Standard or custom cuts.
Bulk discounts for contractors and wholesalers!