18/3 AWG Riser Security Alarm Cable - CMR/CL3R Rated, Shielded, 1000ft Gray
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18/3 AWG Riser Security Alarm Cable - CMR/CL3R Rated
This professional-grade 18 AWG 3-conductor riser security cable is engineered for reliable performance in vertical runs between floors in residential and commercial buildings. Featuring aluminum mylar shielding and stranded bare copper conductors, this CMR-rated cable meets strict fire safety standards for riser applications while protecting against electromagnetic interference.
Proudly made in the USA, this versatile cable with three color-coded conductors and sequential footage marking simplifies installation and troubleshooting for security systems, CCTV cameras, intercoms, audio distribution, and power-limited fire alarm circuits. ETL listed and RoHS compliant for quality assurance and code compliance.
Key Features
- Riser rated (CMR/CL3R) for installation in vertical shafts between floors
- Aluminum mylar shielding protects against EMI/RFI interference
- 3 color-coded conductors for easy identification and termination
- Stranded copper construction for flexibility during installation
- Sequential footage marking for accurate measuring and tracking
- ETL Listed and RoHS compliant for safety and quality assurance
- Made in USA for consistent quality and reliability
- Versatile applications including CCTV, security, and intercom systems
Ideal Applications
- Security and burglar alarm systems
- CCTV security camera wiring
- Fire alarm and life safety systems
- Intercom and communication systems
- Sound and audio distribution networks
- Access control systems
- Power-limited control circuits
- Multi-floor residential and commercial installations
Technical Specifications
Conductors
- AWG Size: 18/3 (3 conductors)
- Strand Count: 7 strands per conductor
- Material: Bare copper
- Construction: Stranded for flexibility
- Conductor Insulation Thickness: 1.2mm PVC
Conductor Color Code
- Black
- Red
- White
Insulation & Jacket
- Conductor Insulation: PVC
- Shield: Aluminum mylar foil
- Outer Jacket: PVC
- Jacket Color: Gray
- Jacket Thickness: 0.38mm
- Nominal Overall Diameter: 4.45mm
Electrical Ratings
- Voltage Rating: 300V
- Temperature Rating: 75°C
- NEC Articles: 725 (CL2R/CL3R), 760 (FPLR), 800 (CMR)
Certifications & Compliance
- CMR (Communications Riser) Rated
- CL3R (Class 3 Riser) Rated
- FPLR (Fire Power Limited Riser)
- ETL Listed
- RoHS Compliant
- Made in USA
Packaging & Marking
- Spool Length: 1000 feet
- Sequential footage marking on jacket
- Jacket Printing: "18 AWG 3C SHIELDED TYPE CL3R/FPLR c(ETL)us TYPE CMR 3054355"
Installation Notes
This riser-rated cable is designed for vertical installations between floors in non-plenum spaces, such as riser shafts, elevator shafts, and vertical cable runs in walls. The CMR rating ensures the cable meets fire safety requirements for these applications.
The aluminum mylar shielding provides protection against electromagnetic interference, making it ideal for installations near electrical equipment or in electrically noisy environments. This is particularly important for CCTV camera installations and security systems where signal integrity is critical.
The 18/3 configuration with shielding is perfect for security cameras, alarm zones, motion detectors, and other devices requiring three conductors with interference protection. The compact 4.45mm diameter makes it easy to route through conduits and tight spaces while the 7-strand construction provides good flexibility for installation.
Always consult NEC Article 725, 760, and 800 requirements and local building codes before installation.