18/2 Stranded Alarm CCA FTP Shielded Cable 500ft - Budget Wiring

In this review the focus is on a 500ft spool of 18/2 stranded alarm cable constructed with Copper-Clad Aluminum (CCA), aimed at installers and DIYers who need long runs of low-voltage wiring on a budget. The bottom line: this cable is for projects where cost, ease of handling, and reliable low-voltage signal transmission matter most; it may not be the choice when pure copper conductors are required. Our review balances performance, practicality, and value for typical security and intercom installations.

Key Features

• Cost-Effective Construction: The Copper-Clad Aluminum core delivers lower material cost, making long spool purchases more affordable for large installations.
• Lightweight and Easy to Install: The lighter CCA construction reduces fatigue during long pulls and simplifies handling through conduits and around corners.
• 18 AWG Conductors: The 18 AWG stranded conductors retain good electrical conductivity for low-voltage alarm, LED and signal lines.
• Shielded FTP Design: The foil shielding helps reduce interference and crosstalk for clearer signal transmission in security and communication networks.
• Durable Outdoors-Ready Core: The CCA core is resistant to corrosion, supporting longer service life in typical indoor/outdoor low-voltage environments.
• Versatile Applications: With two conductors, this cable suits alarm systems, doorbells, intercoms, and other low-voltage communication wiring needs.

Who It's For

This cable is best for homeowners, security installers, and integrators who need long runs of low-voltage wiring without the premium cost of solid copper cable. It is particularly useful for long distances where weight and budget are concerns, such as perimeter alarm wiring, multi-room intercoms, low-voltage LED runs, and doorbell circuits.

Those who require maximum conductivity for high-current low-voltage applications or who must meet specific code requirements that mandate solid copper should look elsewhere. Also, projects that demand stranded pure copper for longevity in very high-moisture or extreme outdoor exposure may prefer a different material choice.

Pros & Cons

Pros

• Economical price per foot compared with equivalent copper cables, making it practical for large projects.
• Lightweight stranded conductor simplifies pulling and reduces installer fatigue on long runs.
• FTP shielding adds protection against electromagnetic interference for clearer signals.
• Suitable for a wide range of low-voltage uses including alarms, doorbells and LED wiring.

Cons

• CCA is not pure copper, so it will have modestly lower conductivity than solid copper equivalents.
• Some installers may prefer solid copper to meet specific local codes or longevity expectations in harsh environments.

Specifications

Brand	Cables Direct Online
Length	500ft
Conductor Type	Copper-Clad Aluminum (CCA)
Gauge	18 AWG, stranded
Conductors	2
Shielding	FTP foil shield

Our Verdict

This 500ft 18/2 CCA FTP shielded cable is a sensible, cost-conscious choice for security installers and DIY users who need long low-voltage runs with easier handling and interference protection. It represents good value where budget and ease of installation are priorities, though those needing the highest conductivity or specific copper-only compliance should consider alternatives.

Frequently Asked Questions

Is this cable suitable for alarm and doorbell systems?
Yes. The 18 AWG stranded conductors and FTP shielding make it appropriate for alarm panels, doorbells and many low-voltage signal applications.

Can this cable replace solid copper in all installations?
No. While economical and corrosion resistant, CCA has lower conductivity than solid copper and may not meet some code or installer preferences for high-current or long-term outdoor deployments.

Does the shielding help with interference?
Yes. The foil shield (FTP) reduces electromagnetic interference and crosstalk, improving signal reliability in communication and security runs.