NMD90 Nonmetallic-Sheathed Cable | CSA-Approved 300V Wiring for Dry & Damp Locations

Product Overview

The Type NMD90 Nonmetallic-Sheathed Cable is a CSA-certified electrical cable designed for exposed and concealed wiring in dry or damp locations across residential, commercial, and light industrial applications. Rated for 300 volts and compliant with CSA C22.2 No.48 and the Canadian Electrical Code (CEC), this cable combines low-friction installation, flame resistance, and temperature resilience for cost-effective and code-compliant electrical systems.

Key Features

• CSA & CEC Certified: Meets CSA C22.2 No.48 and Canadian Electrical Code requirements.

• Wide Temperature Range: Operates from -25°C (2-conductor) / -10°C (3-conductor) to 90°C.

• Friction-Reducing Jacket: PVC outer sheath eliminates need for external lubricants, cutting installation time and costs.

• Color-Coded Identification: Jacket colors (white, red, orange, yellow, blue) simplify wire sizing and application matching.

• RoHS Compliant: Free from hazardous substances.

Applications

• Residential Wiring: Branch circuits for outlets, switches, and lighting in homes and apartments.

• Commercial Buildings: Concealed wiring in drywall, attics, or basements (non-wet areas).

• Damp Locations: Approved for concealed use in damp environments (e.g., behind sealed walls).

• Specialized Circuits:

  • Red Jacket: 208V-240V circuits (no neutral).

  • Blue Jacket: 120V arc fault circuit interrupter (AFCI) systems.

Technical Specifications

Electrical & Thermal Performance

• Voltage Rating: 300V AC.

• Temperature Ratings:

  • Operating: -25°C to +90°C (2-conductor) / -10°C to +90°C (3-conductor).

  • Storage: Maintain above 0°C for 24 hours pre-installation.

• Conductor Options: 14 AWG (blue), 12 AWG (yellow), 10 AWG (orange), and custom configurations.

Construction Details

• Conductors:

  • Annealed (soft) copper, compressed stranded for flexibility.

  • Complies with ASTM standards for conductivity and durability.

• Insulation:

  • 90°C-rated PVC (thermoplastic) with nylon core jacket.

• Assembly:

  • 2- or 3-conductor configurations with bare copper ground.

  • Parallel conductors wrapped with kraft paper tape.

• Outer Jacket:

  • Flame-retardant PVC, color-coded by application and gauge.

Color Coding Guide

Compliance & Certifications

• Standards: CSA C22.2 No.48, Canadian Electrical Code (CEC), ASTM.

• Safety: Flame-retardant jacket, self-extinguishing properties.

• Environmental: RoHS, REACH compliant.

Packaging & Ordering

• Standard Lengths: 250 ft, 500 ft, or custom spools.

• Pre-Installation Note: Store cables above 0°C for 24 hours before installation.

Advantages

• Easy Installation: Low-friction jacket allows smooth pulling through conduits or wall cavities.

• Code Compliance: Meets CEC requirements for damp and dry locations.

• Durability: Nylon-insulated cores resist abrasion during installation.

• Cost Savings: Eliminates lubricant costs and reduces labor time.

FAQs

Q: Can NMD90 cable be used outdoors or in wet locations?
A: No. It is rated for damp locations only when concealed (e.g., behind walls). For outdoor use, select cables rated for direct burial.

Q: What is the purpose of the kraft paper tape in the assembly?
A: It provides mechanical stability and separation between conductors during installation.

Q: Is this cable suitable for high-load circuits like electric heaters?
A: Yes, but ensure the ampacity aligns with the 90°C conductor rating and CEC guidelines.

Note: Always follow CEC guidelines and local codes for installation. Not rated for direct burial or continuous outdoor exposure.