18/4 Shielded Security Plenum Cable (18 AWG, 4 Conductor) is a reliable low-voltage cable designed for security, audio, and control applications requiring multiple conductors and protection from signal interference. Its plenum-rated construction makes it ideal for installation in air-handling spaces in both commercial and residential environments.
 
This cable features 18 AWG, 4 stranded bare copper conductors with aluminum Mylar foil shielding and an integrated drain wire to minimize electrical noise and maintain signal integrity. The white low-smoke PVC plenum jacket includes a rip cord for easy stripping and sequential footage markings for accurate measurement during installation.
 
Rated for 300 volts and 75°C, this cable is UL and ETL listed and complies with NEC Article 725 (CL2P) and Article 800 (CL3P), making it suitable for plenum installations. It is also RoHS compliant for environmental safety.
 
Key Features
18 AWG, 4 conductor stranded bare copper
Shielded with aluminum Mylar foil + drain wire
White low-smoke plenum-rated PVC jacket with rip cord
Sequential footage markings
Rated 300V, 75°C
UL & ETL listed
NEC rated: CL2P, CL3P
RoHS compliant
 
Applications
Ideal for:
Security & alarm systems
Access control systems
Intercom systems
Audio & sound systems
Multi-channel control circuits
Building automation systems