18/12 Plenum Security Alarm Cable - CMP/CL3P Rated, 7 Strand Copper, 1000ft White

Ultimate enterprise-grade plenum-rated 12-conductor security alarm cable engineered for the most sophisticated multi-zone and integrated building systems available. This USA-made cable features twelve 18-gauge stranded bare copper conductors with 7 strands each, housed in a low-smoke CMP-rated white jacket. The pinnacle of alarm cable design, combining maximum conductor count (12) with heavy-duty wire gauge (18 AWG) and complete fire safety compliance for the most demanding commercial, institutional, and industrial installations.

Key Features

• 18 AWG 12-Conductor Configuration - ABSOLUTE MAXIMUM versatility for enterprise-grade integrated systems
• Heavy-Duty 18 AWG Wire Gauge - Superior performance for extended cable runs and higher current capacity
• 7-Strand Bare Copper Conductors - Exceptional 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
• 12 Unique Color-Coded Conductors - Complete extended color spectrum for complex installations (Black, Red, White, Green, Brown, Blue, Orange, Yellow, Purple, Gray, Pink, Tan)
• 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
• Made in USA - Premium domestic manufacturing quality

Ideal Applications

Perfect for the most complex enterprise-level plenum installations:

• Campus-Wide Security & Building Management Systems
• Critical Infrastructure & Government Facilities
• Large-Scale Multi-Building Integrated Security
• Enterprise Data Center Security & Monitoring
• Hospital & Healthcare Integrated Systems
• Educational Institution Campus Security
• Industrial Complex Security & Process Control
• High-Rise Building Automation & Security
• Transportation Hub Security Systems
• Military & Defense Installations

Technical Specifications

• Conductor Material: Stranded Bare Copper
• Wire Gauge: 18 AWG
• Number of Conductors: 12 (MAXIMUM)
• Strands per Conductor: 7
• Conductor Insulation: 1.2mm Low-Smoke PVC
• Cable Diameter (Nominal OD): 7.52mm (0.296")
• Jacket Thickness: 0.38mm (0.015")
• 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 (12 Colors - Complete Extended Spectrum)

1. Black
2. Red
3. White
4. Green
5. Brown
6. Blue
7. Orange
8. Yellow
9. Purple
10. Gray
11. Pink
12. Tan

Jacket Printing

18 AWG 12C 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 18/12 Plenum Cable?

✓ ABSOLUTE MAXIMUM Capability - Twelve conductors + 18 AWG = the ultimate alarm cable available
✓ Heavy-Duty Construction - 18 AWG supports longest runs (up to 3,000+ feet)
✓ Fire Code Compliant - CMP plenum rating for air-handling spaces
✓ Low Smoke Safety - Enhanced fire safety for occupied buildings
✓ Future-Proof Design - Maximum conductors ensure unlimited expansion capability
✓ Professional Integration - Complete 12-color coding for complex multi-system installations
✓ Unmatched Versatility - Single cable supports up to 6 independent 2-wire circuits
✓ Cost-Effective - Consolidates up to 6 separate cable runs into one installation

Plenum Installation Requirements

Use CMP Plenum Cable When:

• Installing in HVAC plenums or air-return spaces
• Running cable above drop ceilings used for air circulation
• Building codes require low-smoke, fire-resistant materials
• Commercial installations with strict fire safety codes
• Installing in any space used for environmental air

Critical: Plenum cable exceeds all riser (CMR) specifications and can substitute for riser cable anywhere, but riser cable cannot be used in plenum spaces. Always verify local building codes and fire marshal requirements.

Common Use Cases

• University Campuses: Multi-building integrated security, access control, emergency notification
• Medical Complexes: Hospital security, nurse call, patient monitoring, building automation
• Government Facilities: High-security installations with multiple zones and redundancy
• Corporate Headquarters: Enterprise-grade security with complete building integration
• Industrial Parks: Multi-building security with process control integration
• Airport Terminals: Comprehensive security with PA, intercom, and access control
• Large Shopping Malls: Multi-tenant security with central monitoring and emergency systems
• Hotel & Resort Complexes: Guest security, staff communication, building automation
• Educational Institutions: Campus-wide security, classroom intercom, lockdown systems
• Smart City Infrastructure: Integrated public safety and building management
• Data Centers: Multi-zone security, environmental monitoring, access control, backup systems
• High-Rise Buildings: Floor-by-floor security with elevator integration and emergency systems

Extended 12-Color Coding System

Unique Advantage: The 18/12 configuration includes Pink and Tan conductors, which are rarely found in standard cables. This extended color palette ensures:

• Zero Ambiguity: No color confusion even with 12 conductors
• Professional Documentation: Clear wiring diagrams with unique colors
• Easy Troubleshooting: Quickly identify any of 12 conductors
• Industry Standard: Follows extended EIA/TIA color coding standards

Standard Color Grouping Strategies:

• Primary (Black/Red/White/Green): Main security circuits
• Secondary (Brown/Blue/Orange/Yellow): Intercom/audio circuits
• Tertiary (Purple/Gray/Pink/Tan): Auxiliary/expansion circuits

Technical Advantages Summary

• 18 AWG Conductors: Heavy-duty professional grade for longest runs
• 12-Conductor Design: ABSOLUTE MAXIMUM flexibility and integration capability
• 7-Strand Construction: Superior flexibility despite large overall diameter
• Plenum Rating: CMP approved for air-handling spaces
• Low-Smoke Jacket: Enhanced fire safety exceeds building codes
• Extended Color Coding: All 12 conductors uniquely identified (including Pink/Tan)
• ETL Listed: Third-party safety certification
• Made in USA: Consistent quality and reliability

Value Proposition

This 18/12 plenum cable represents the ultimate investment for:

• Complex Projects: Installations requiring absolute maximum capability
• Future-Proofing: Buildings where extensive expansion is anticipated
• System Integration: Projects combining security, intercom, access, and automation
• Professional Installations: Where quality and capability are paramount
• Long-Term Value: Buildings with 20+ year service life expectations

Return on Investment:

• Labor Savings: One cable pull replaces up to 6 separate runs
• Material Reduction: Fewer cables, less conduit, reduced hardware
• Future Value: 12 conductors ensure capacity for any future system
• Installation Efficiency: Extended color coding reduces errors and service calls
• System Flexibility: Supports multiple current and future applications
• Minimal Obsolescence: Maximum configuration ensures long-term relevance

When to Choose This Cable

Perfect For:

• New construction of large commercial/institutional facilities
• Campus-wide integrated security and building management
• Critical infrastructure requiring maximum capability
• Complex projects with multiple integrated systems
• Installations where future expansion is certain
• Professional integrators demanding ultimate flexibility
• Long cable runs requiring 18 AWG performance
• Projects where quality and capability justify premium investment

Consider Alternatives If:

• Simple systems with 4 or fewer zones
• High EMI environment (shielded cable may be better)
• Non-plenum spaces (riser cable acceptable)
• Budget constraints with simpler requirements
• Residential applications
• Short runs under 500 feet

Professional Installation Considerations

Cable Management:

• Large 7.52mm diameter requires adequate cable tray or conduit
• Plan pull routes to minimize bend count
• Use proper cable lubricant for long conduit pulls
• Consider weight when planning support intervals

Termination Requirements:

• 12 conductors require adequate terminal space at panels
• Use clearly labeled terminal blocks
• Consider future service access when terminating
• Document all connections thoroughly

Testing Protocol:

• Test all 12 conductors for continuity
• Verify no shorts between any conductors
• Confirm proper ground isolation
• Test insulation resistance
• Document all test results

Usually ships in 1 - 2 business days.