SYSTON 18/2 Fire Security Burglar Station Alarm Control Cable - Plenum

In this review the SYSTON 18/2 Fire Security Burglar Station Sound Alarm Control Cable is evaluated for installers and system integrators who need a reliable, plenum-rated control cable for low-voltage power-limited circuits. The bottom line: this cable stands out for its pure copper conductors and true CMP/CL3P flame retardant rating, making it a practical choice where running cable in ceiling plenums or air handling spaces requires the highest safety standard. Installers will appreciate the flexibility and consistent conductivity while facility managers will value the listed safety standards.

Key Features

• Multiple application support: The cable is suitable for fire alarm, burglar alarm, public address, intercom, telephone station and other low-voltage systems, reducing the need for different cables on a job.
• Pure copper conductors: Stranded bare copper provides reliable conductivity and flexibility for routing through tight spaces and around corners.
• CMP plenum rating: CMP/CL3P/FT6 construction allows installation in plenum air spaces where the highest flame retardant grade is required by code.
• Regulatory compliance: Meets NEC 725 and 800 and UL 13 and UL 444 standards, with UL or ETL listing and RoHS compliance for safer installations.
• 300V insulation: The 300V CL3 rating gives a strong safety margin for power-limited low-voltage circuits used in security and A/V systems.

Who It's For

The cable is aimed at electricians, fire alarm technicians and low-voltage contractors who must pull cable in commercial buildings where plenum-rated wiring is mandated and who need a dependable 18/2 pair for control, signaling, or speaker circuits. It is also useful to facilities teams doing retrofits that require code-compliant replacement cable.

Those who should look elsewhere are DIYers needing heavier gauge power wiring or users who require shielded cable for high-noise environments; this is an unshielded 18/2 control cable designed for power-limited signal runs rather than high-current or specialized shielded installations.

Pros & Cons

Pros

• True CMP plenum rating offers the highest flame retardant protection for air plenums.
• Stranded 100% copper conductors deliver good conductivity and ease of routing.
• Broad application range covers alarms, intercoms, access control and audio systems, simplifying inventory.
• Compliant with NEC and UL standards and RoHS, providing code confidence.

Cons

• Unshielded construction may not suit noisy electrical environments where shielding is required.
• Some customers note the cable's thickness feels thin for certain expectations, so verify handling preferences before large runs.

Specifications

Conductor	Stranded bare 100% copper
Pair Count / Gauge	18/2
Voltage Rating	300V (CL3 rated)
Plenum Rating	CMP / CL3P / FT6
Standards	NEC 725 & 800; UL 13 & UL 444; NFPA 262; CSA FT6
Listing	UL and/or ETL listed, RoHS compliant

Our Verdict

The SYSTON 18/2 plenum-rated control cable is a sensible, cost-effective choice for professionals who need a flexible, code-compliant cable for fire alarm, security and low-voltage signaling in commercial buildings. Its CMP flame rating and solid copper conductors make it good value for projects that require plenum installation and reliable conductivity, though buyers needing shielded runs should select a different product.

Frequently Asked Questions

Is this cable safe for plenum air spaces?
Yes. It is CMP/CL3P/FT6 plenum-rated and meets NFPA 262, making it suitable for plenum air spaces per code.

Can this cable be used for speaker or PA systems?
Yes. The 18/2 stranded copper construction and 300V CL3 rating make it appropriate for low-voltage speaker or public address circuits.

Is the cable shielded for noisy environments?
No. This product is unshielded; for environments with electrical noise, choose a shielded control or instrumentation cable.