NMD90 Copper Non-Metallic Sheathed Cable | 300V T90/RW90 Insulation | FT1 Flame-Retardant | CSA C22.2 No. 48 Compliant (-40°C to 90°C)
Product Overview
The NMD90 Non-Metallic Sheathed Cable is a versatile electrical cable designed for safe and efficient power distribution in dry and damp environments. Certified to CSA C22.2 No. 48, it combines flame-retardant properties with durable construction, making it suitable for residential and light commercial applications.
Key Specifications
| Parameter | Details |
|---|---|
| Voltage Rating | 300V |
| Conductor | Annealed copper (stranded or solid), compressed stranding for flexibility |
| Insulation | Option 1: PVC with nylon covering (T90) Option 2: XLPE (RW90) |
| Jacket | PVC, FT1 flame-retardant, moisture-resistant |
| Temperature Range | Operating: -40°C to 90°C Installation: -40°C (2-conductor), -25°C (3-conductor) |
| Compliance | CSA C22.2 No. 48, FT1 flame test, ROHS |
Applications
Residential Use
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General Wiring: Lighting, outlets, and appliance circuits (white/orange/yellow jackets).
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Concealed Installations: Inside walls and ceilings in dry or damp locations.
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Multi-Circuit Systems: 2- or 3-conductor configurations for dedicated circuits (red/blue jackets).
Commercial Use
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Office Buildings: Low-voltage power distribution in dry environments.
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Retail Spaces: Flexible wiring for lighting and equipment.
Construction Details
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Conductor:
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Material: High-conductivity annealed copper.
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Stranding: Compressed stranding for flexibility (stranded conductors).
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Insulation:
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T90 PVC: Cost-effective with nylon abrasion protection.
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RW90 XLPE: Higher temperature resistance (up to 90°C).
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Jacket:
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Material: Flame-retardant PVC (FT1-rated).
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Properties: Resistant to moisture, heat, and sunlight degradation.
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Installation Guidelines
Pre-Installation
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Storage: Store cables above 0°C for 24 hours before installation.
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Handling: Avoid bending beyond the minimum radius (refer to CSA guidelines).
Environmental Limits
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Dry Locations: Exposed or concealed wiring (e.g., attics, enclosed walls).
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Damp Locations: Concealed installations only (e.g., basements with occasional moisture).
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Prohibited Use: Outdoor, wet, or direct burial applications.
Temperature Compliance
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Two-Conductor Cables: Installable at temperatures as low as -40°C.
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Three-Conductor Cables: Minimum installation temperature of -25°C.
Color Coding & Configuration
| Jacket Color | Conductor Size | Application |
|---|---|---|
| White | 14–10 AWG | General residential circuits |
| Red | 14–6 AWG | 2-conductor systems (black + red) |
| Orange | 10 AWG | High-load circuits (e.g., kitchen outlets) |
| Yellow | 12 AWG | Lighting and standard outlets |
| Blue | 14 AWG | 2-conductor lighting (black + white) |
Performance & Safety
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Flame Retardancy: FT1-certified to inhibit fire spread in vertical installations.
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Environmental Resistance:
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Moisture: PVC jacket prevents water ingress in damp environments.
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Heat: XLPE insulation withstands continuous 90°C operation.
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Compliance: Fully meets CSA C22.2 No. 48 for non-metallic sheathed cables.
Ordering Information
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Conductor Size: 14 AWG to 4/0 AWG.
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Insulation Type: Select PVC (T90) or XLPE (RW90).
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Configuration: 2- or 3-conductor options.
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Color: White, Red, Orange, Yellow, Blue.
Custom lengths and bulk pricing available for contractors.
FAQ
Q: Can NMD90 be used outdoors or in conduit underground?
A: No. This cable is rated for dry/damp indoor locations only.
Q: What is the difference between T90 and RW90 insulation?
A: T90 uses PVC + nylon for flexibility, while RW90 uses XLPE for higher temperature tolerance.
Q: Is this cable suitable for Canadian electrical codes?
A: Yes. It is CSA-certified (C22.2 No. 48) for use in Canada.
Compliance & Documentation
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Standards: CSA C22.2 No. 48, FT1 flame test (CSA FT1).
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Certificates: Available upon request (ROHS, test reports).