Multiple Applications: Fire Protective Signaling Circuits, Smoke Detectors, Strobes/Sirens, Pull Stations, Voice Communications, Burglar Alarms, Audio, Control, Initiating & Notification Circuits, Microprocessor/Addressable Controlled Systems. Pure Copper Conductors: Our fire alarm wire is built with solid bare copper conductors, providing maximum conductivity and reliability to ensure that your systems run smoothly. FPLP (Plenum-Rated): Our cable is designed with your safety in mind. 300V (CL3) Power-Limited Circuit Cable: Our cable is rated at 300 volts and classified as a Class-3 (CL3) Power-Limited Circuit Cable, capable of carrying a surge of up to 300 watts. Installation-Friendly Design: With its round, slick jacket and smooth edges, our cable is easy to pull through rough corners and edges. The jacket also features a rip cord for effortless removal during installation.