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#1 Source in low voltage wire and cable. Call us today to learn more about special offers.
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.

Riser Shielded Stranded Cable, 18/3 AWG, CL3R

SKU: ASC2-327/183
Various lead times may apply to this product. Please contact us for more details.
Made in USA RoHS Compliant ETL Verified logo


18/3 CMR Shielded Alarm Cable for Residential & Commercial Security Systems

The 18/3 AWG Security Alarm Cable features 3 Bare Copper (7 Strand) Conductors, with a CMR-rated Riser PVC jacket. This shielded cable is ETL listed and RoHS compliant, suitable for various applications such as CCTV Security Camera Wiring, Intercom Systems, Sound/Audio Systems, and Power-Limited Controls.

Our Bulk Security Alarm Cables, also known as alarm wire, are meticulously crafted to meet alarm system installation requirements. This riser alarm cable boasts three 18-gauge bare copper 7-strand conductors and includes aluminum mylar shielding to prevent external electromagnetic interference. Proudly made in the USA, it is ideal for installation in security systems, intercom systems, power-limited controls, and sound/audio systems.

Product Quality

We stock a wide variety of high quality alarm cables to meet all your needs. Our bulk security cables come with both riser and plenum rated jacket. Be sure to check the building code requirements before purchasing alarm cable. The alarm cable also include print legends to allow for quick identification of each cable's application. Time is precious and the convenience of the cables at installation makes our security alarm cables the choice for multiple applications.


A broad range of applications exist for bulk riser security alarm cabling. It is widely used with security systems, intercom systems, sound/audio systems, and power-limited controls in commercial settings such as schools, universities, hospitals, airports, government buildings, train and transportation centers, stadiums, and arenas. This security cable is an excellent choice for home alarm systems as well. Since this alarm cable has multiple conductors under one jacket, the preparation, set up, and termination time is shorter. The riser alarm cable is rated to be utilized in floor to floor applications in multi-story buildings.



  • 18 AWG 3 Conductors
  • Riser Rated
  • 7 Stranded Bare Copper Conductors
  • PVC Insulation
  • Shielded
  • Gray PVC Jacket
  • Sequential Footage Marking
  • CL3R/FPLR Rated
  • ETL Listed
  • RoHS Compliant
  • NEC Articles
    • 22-16 AWG: FPLR/760, CMR/800, CL3R, CL2R/725
    • 14-12 AWG: FPLR, CL3R
  • Conductor Jacket Color
  1. Black
  2. Red
  3. White

Residential or Commercial Applications

  • Security Systems
  • Intercom Systems
  • Sound/Audio Systems
  • Power-Limited Controls



Physical Construction

Inner Conductor Stranded Bare Copper
Conductor Size 18 AWG
Insulation PVC
Nominal OD 4.45mm
Outer Jacket Diameter .38mm
Jacket PVC
Jacket Color Gray
Number of Strands 7
Conductor Insulation 1.2mm PVC

Electrical Characteristics

Temperature 75°C
Voltage Rating 300V

Additional Information

Standards UL | ETL | RoHS | CMR
Applications Security Systems | Intercom Systems Sound | Audio Systems | Power-Limited Controls
Jacket Printing 18 AWG 3C SHIELDED TYPE CL3R/FPLR c(ETL)us TYPE CMR 3054355
Important Notes The information contained in this document is proprietary to CRN Solutions and may not be disclosed or transmitted to any other parties without the express written permission of CRN Solutions. This information is provided for the purposes of quotation only.

What's in the Box

What's in the Box

  • Security Alarm Cable - Riser (CMR) - 18/3 AWG, CL3R, Stranded (7 Strand), Shielded, Gray
  • 1000 Ft