18 AWG 2 Conductor Stranded Shielded Plenum Cable 100FT - Flexible

In this review of the 18 AWG 2 Conductor Stranded Shielded Plenum Cable 100FT, the bottom line is simple: installers and system integrators who need a flexible, plenum-rated shielded pair for alarms, access control, or PA systems will appreciate the reliability and safety-focused construction. The cable's stranded pure copper conductors and CMP/CL3P plenum-rated jacket make it a practical choice where fire performance and bendability matter most, delivering confidence in low voltage signal integrity for on-wall, ceiling plenum, and conduit runs.

Key Features

• 100 ft length: Provides a convenient single-roll length for runs in small to medium installations without frequent splices.
• Stranded pure copper conductors: Improve flexibility and conductivity, reducing resistance compared with copper-clad aluminium alternatives.
• Shielded pair construction: Helps reduce interference in sensitive circuits such as security, intercoms, and audio lines.
• CMP/CL3P plenum jacket: Uses flame-retardant materials suitable for plenum spaces where fire performance and low smoke are required.
• Wide temperature range: Rated to operate from about -10C/14F to 90C/194F, suitable for many indoor environments.
• 300 V rating: Matches common low-voltage system requirements for alarm and access control applications.

Who It's For

The cable is aimed at electricians, security installers, and AV technicians who run low-voltage wiring in commercial or multi-unit residential buildings where plenum-rated materials are required. It suits projects that need a shielded pair for alarm panels, access control doors, telephone stations, or public address speakers where EMI rejection is helpful.

DIY homeowners doing basic low-voltage runs might find the cable useful, but those who do not need plenum-rated jacket or shielding could choose a simpler, less costly non-plenum cable instead. This product is not intended for high-voltage mains wiring or direct burial outdoor use.

Pros & Cons

Pros

• Stranded pure copper offers good conductivity and flexibility for tight routing and repeated handling.
• Plenum-rated CMP/CL3P jacket improves safety and meets building fire-code needs for air-handling spaces.
• Shielded construction reduces interference on sensitive alarm and audio circuits.
• 300 V rating and wide temperature tolerance make it versatile for many indoor low-voltage systems.

Cons

• Only supplied in a 100 ft length, which may require splicing for larger commercial runs.
• Not designed for outdoor burial or high-voltage applications, so it is limited to indoor low-voltage use.

Specifications

Length	100 ft
Conductor size	18 AWG
Conductors	2 stranded
Shielding	Shielded pair
Jacket rating	CMP / CL3P / FPLP (Plenum-Rated)
Voltage rating	300 V
Temperature range	-10C/14F to 90C/194F

Our Verdict

The 18 AWG 2 Conductor Stranded Shielded Plenum Cable is a solid choice for professional low-voltage installations that require a plenum-rated, shielded pair and flexible stranded copper conductors. It offers good value for installers who prioritize fire-safe materials and signal integrity, though those needing longer continuous lengths or outdoor-grade cable should look elsewhere.

Frequently Asked Questions

Is this cable plenum-rated?
Yes, the jacket is CMP/CL3P/FPLP plenum-rated for use in air-handling spaces.

Can this be used for fire alarm and access control?
Yes, the 18 AWG stranded copper conductors and shielding make it suitable for fire alarm, security, and access control low-voltage wiring.

Is it suitable for outdoor burial?
No, this product is intended for indoor plenum and conduit applications and is not rated for direct burial or prolonged outdoor exposure.