Premium heavy-duty plenum-rated 2-conductor security alarm cable engineered for maximum-length installations in air-handling spaces. This USA-made cable features two 18-gauge stranded bare copper conductors with 7 strands each, housed in a low-smoke CMP-rated white jacket. The ultimate combination of longest possible cable runs (up to 3,000 feet) with complete fire safety compliance, this cable delivers heavy-duty professional performance for critical plenum installations in clean electrical environments where EMI protection is not required.

Key Features

• 18 AWG 2-Conductor Design - Heavy-duty wire gauge for maximum cable run lengths
• 7-Strand Bare Copper Conductors - Excellent flexibility and reliable signal transmission
• CMP/CL3P Plenum Rated - Approved for HVAC plenums and air-handling spaces
• Low-Smoke PVC Construction - Enhanced fire safety with minimal toxic smoke emission
• Unshielded Design - Cost-effective solution for clean electrical environments
• 2 Color-Coded Conductors - Easy identification (Black and Red)
• Sequential Footage Marking - Precise measurement for accurate installation planning
• ETL Listed & RoHS Compliant - Meets strict safety and environmental standards
• White Low-Smoke Jacket - Clean, professional appearance for visible installations
• Print Legend for Identification - Cable markings save valuable installation time
• Made in USA - Premium domestic manufacturing quality

Ideal Applications

Perfect for long-run plenum installations in commercial buildings:

• Single-Zone Security & Alarm Systems in Plenum Spaces
• Commercial Office Building Security
• Multi-Story Building Above Drop Ceilings
• Data Center Plenum Security
• Healthcare Facility Security
• Educational Institution Security
• Intercom Systems in Air-Handling Spaces
• Long-Run Commercial Installations

Technical Specifications

• Conductor Material: Stranded Bare Copper
• Wire Gauge: 18 AWG
• Number of Conductors: 2
• Strands per Conductor: 7
• Conductor Insulation: 0.009" Low-Smoke PVC
• Cable Diameter (Nominal OD): 3.99mm (0.157")
• Jacket Thickness: 0.457mm (0.018")
• Jacket Material: Low-Smoke PVC
• Jacket Color: White
• Shielding: Unshielded

Electrical Performance

• Maximum Temperature: 75°C (167°F)
• Voltage Rating: 300V

Certifications & Compliance

• Plenum Rating: CMP (Communications Plenum)

• Additional Ratings: CL3P, FPLP

• Listings: ETL Listed

• Environmental: RoHS Compliant

• NEC Article Compliance:

  • Articles 760 (FPLP - Fire Alarm)
  • Article 800 (CMP - Communications)
  • Articles 725 (CL3P, CL2P - Control Circuits)

Conductor Color Coding

• Conductor 1: Black
• Conductor 2: Red

Jacket Printing

18 AWG 2C UNSHIELDED TYPE CL3P/FPLP c(ETL)us TYPE CMP 3054355

Package Details

• Length: 1000 feet per spool
• Country of Origin: Made in USA

Why Choose 18/2 Plenum Cable?

✓ Maximum Plenum Performance - Longest runs (up to 3,000 feet) with fire safety compliance
✓ Heavy-Duty + Fire Safety - 18 AWG performance meets CMP plenum requirements
✓ Cost-Effective Solution - Heavy-duty performance without shielding premium
✓ Low Smoke Safety - Enhanced fire protection for occupied buildings
✓ Professional Quality - Print legend and sequential marking
✓ Highest Current Capacity - Supports powered devices in long plenum runs
✓ Reduced Voltage Drop - Maintains system performance over extreme distances
✓ Code Compliant - Meets strictest fire safety requirements for air-handling spaces

Common Use Cases

• Commercial Office Buildings: Long-run single-zone security above drop ceilings
• Data Centers: Plenum security near server equipment (clean electrical environment)
• Healthcare Facilities: Hospital security in air-handling ceiling spaces
• Educational Institutions: University or school building security in plenum
• Government Buildings: Long-run critical security in plenum spaces
• Corporate Headquarters: Executive floor security with plenum compliance
• Professional Offices: Attorney, medical, financial offices requiring plenum cable
• Retail Centers: Mall or shopping center security above drop ceiling
• Hotels & Resorts: Guest floor security in plenum spaces
• Mixed-Use Buildings: Commercial/residential with plenum requirements

Fire Safety & Low Smoke Benefits

Why CMP Plenum Rating Matters:

Fire Safety Requirements:

• Low flame spread: Prevents fire propagation through air-handling spaces
• Low smoke generation: Reduces toxic smoke in occupied spaces
• Self-extinguishing: Stops burning when flame source removed
• Tested to UL standards: Rigorous fire safety testing

Life Safety Benefits:

• Protects occupants: Minimal smoke in fire situations
• Maintains egress paths: Less smoke obstruction during evacuation
• Reduces toxic exposure: Low-smoke materials protect health
• Code compliant: Meets fire marshal requirements

Why Plenum Spaces are Critical:

• Air circulation distributes smoke rapidly throughout building
• HVAC systems can spread fire and smoke between floors
• Occupants rely on clean air during evacuation
• Building codes mandate strictest materials in these spaces

When to Choose This Cable

Perfect For:

• Long plenum cable runs (2,000-3,000 feet) in air-handling spaces
• Commercial buildings requiring plenum-rated cable
• Single-zone security above drop ceilings with air circulation
• Professional installations where heavy-duty + plenum is critical
• Modern buildings with clean electrical environments
• Projects requiring maximum cable length with fire safety
• Code-mandated plenum installations in clean EMI environments

Consider Alternatives If:

• High EMI environment in plenum (choose 18/2 shielded plenum)
• Non-plenum spaces adequate (18/2 riser saves cost)
• Short runs under 2,000 feet (22/2 or 20/2 plenum may be adequate)
• Multiple zones needed (consider 18/4 or 18/6 plenum)
• Near heavy electrical equipment in plenum (shielding recommended)