Choosing the right plenum-rated fire alarm cable is essential for safe, compliant building wiring. This guide highlights five top options that meet NFPA and NEC requirements for fire alarm and signaling circuits in plenum and non-plenum spaces. Each product is evaluated for conductor quality, shielding, jacket rating, and installation practicality to help facility managers and electricians compare specs quickly.
Summary of selected products:
- EWCS 18 AWG 2/C Solid FPLP Plenum Rated Red (UL Approved) — Shielded, low-smoke jacket, 300V, 75C.
- EWCS 18 AWG 2/C Solid FPLR Shielded Riser Cable — Red jacket, shielded, 24 AWG drain wire, 300V, 75C.
- SYSTON 18/6 Fire Security Burglar Station Cable — Plenum-rated CMP/CL3P, shielded, UL/ETL listed.
- SYSTON 16/2 Fire Security Control Cable — Plenum-rated CMP/CL3P, shielded, UL/ETL listed.
- SYSTON 18/2 Fire Security Burglar Station Cable — Plenum-rated CMP/CL3P, shielded variant, UL/ETL listed.
EWCS 18 AWG Plenum Rated FPLP Fire Alarm Cable (Red)
These UL-approved plenum/ FPLP cables are designed for fire alarm and signal-control circuits and are NEC-certified for plenum installations. The two solid copper conductors are color-coded Black and Red, with Low Smoke PVC jackets available in multiple colors for circuit identification. Rated for 300 volts and 75°C, the cable features a .143” diameter and 20 pounds per 1000 feet, with footprint markings on the jacket and shipment on a 12″ plywood spool.
EWCS 18 AWG FPLR Shielded Riser Fire Alarm Cable
This UL-certified riser cable is intended for installation between floors and non-plenum areas. It features two solid copper conductors with Black and Red coloring, a aluminum Mylar shield, and a 24 AWG tinned copper drain wire. A Red PVC jacket, 300V rating, and 75°C operating limit apply. Includes a rip cord for easy stripping, and ships on a 12″ plywood spool with jacket-printed yardage marks.
SYSTON 18/6 Plenum-Rated Shielded Cable
Designed for multiple low-voltage applications, this 18/6 control cable uses pure stranded copper conductors and includes an aluminum foil shield to minimize EMI. It is UL/ETL listed and suitable for indoor and outdoor use where plenum-rated performance is required in security, fire alarm, or public address systems.
SYSTON 16/2 Plenum-Rated Shielded Fire Cable
This 16/2 cable uses 100% copper conductors, with an aluminum foil shield to limit EMI. It is CMP/CL3P rated for plenum spaces and UL/ETL listed, making it a practical option for indoor/outdoor low-voltage installations requiring protection against interference and flame retardancy.
Syston 18/2 Plenum-Rated Shielded Fire Alarm Cable
With a CMP/CL3P rating and a shielded design, this 18/2 cable is suitable for plenum spaces and critical signaling applications. It employs pure copper conductors and UL/ETL listing, delivering reliable performance for fire alarm and security systems in buildings where shielding is beneficial to signal integrity.
EWCS 16 AWG Plenum Rated Shielded Fire Alarm Cable
This 16 AWG shielded plenum-rated cable features two solid copper conductors with a Low Smoke PVC jacket in red, plus an aluminum Mylar shield and a 24 AWG tinned copper drain wire. It is UL-approved for FPLP/CL2P/CM, rated at 300V and 75°C, with a 0.168″ diameter and 28 pounds per 1000 feet. Footage markings facilitate inventory control on spools.
Buying Guide
Key considerations when selecting plenum-rated fire alarm cable include:
- Plenum rating and code compliance: Ensure CMP/CL3P or FPLP ratings align with the installation space (plenum vs non-plenum) and local code requirements.
- Conductor material and size: Pure copper conductors (solid or stranded) provide reliable signaling; common sizes are 16 AWG and 18 AWG for control and alarm circuits.
- Shielding: Shielded variants reduce EMI, beneficial for high-data or sensitive signaling runs; unshielded options may suffice for simpler layouts.
- Jacket material and color coding: Low-smoke PVC jackets aid in identification and safety; color options help differentiate circuits in complex installations.
- Voltage and temperature rating: Common ratings are 300V and 75°C; verify compatibility with device specifications and environment.
- Physical attributes: Diameter, weight per 1000 feet, and spool dimensions impact ease of handling and installation in tight spaces.
- Installation environment: Riser-rated (FPLR) cables are suited for between floors; plenum-rated cables are required in spaces that circulate air.
- Shielding vs cost trade-offs: Shielded cables offer EMI protection but may be more expensive; balance requirements against budget and signal integrity needs.
- Certifications: Look for UL/ETL listings and NEC approvals to ensure long-term reliability and code compliance.
When comparing products, consider the specific fire alarm system layout, the presence of EMI-sensitive equipment, and whether plenum or riser pathways dominate the installation. Shielded options are advantageous where signal clarity is critical, while unshielded variants can reduce cost and complexity in simpler networks. Always verify current NEC and local code requirements before finalizing a purchase.