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Foundry Cable Exchange

A place to buy wire and cable at prices set to the metal exchange every morning and checked against the competition before you order. Shipped cut to length with no reel minimums.

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Orders carry a PO number and job name. Cut to length; $85 per cut on by-the-foot lines. First orders prepaid, shipped to your facility.

© 2026 Foundry Cable Exchange.Prices are indicative until ordered or quoted; quotes hold for seven days.
18 AWG Commercial Security & Control Cable (2, 3, 4 & 6 Conductor, Shielded & Unshielded, Riser & Plenum)

18 AWG Commercial Security & Control Cable (2, 3, 4 & 6 Conductor, Shielded & Unshielded, Riser & Plenum)

Color
Part #1802SCMPRG - Plenum (Shielded)
$173.38/ reelIn stock
DownloadsDatasheet (PDF)(342 KB)
reel

Priced at copper $6.53/lb. Market read 3:30 PM ET: $6.57/lb — +0.15% on this price; holds until ±0.25%.

Price check 1802SCMPRGOct 19, 2026, 12:00 PM ET

31.4% less here than the lowest price we found, $252.86 per 1000 ft at Primus Cable (comparable spec). That is $79.48 a reel, or $794.80 on 10 reels.

in stock

Priced today at copper $6.57/lb: the conductor is $64.56 of this reel, so a 5% move in copper moves the price about $3.23. The rest holds.

Price sheetShare cardEvery comparisonHow we check

Cut to length, no reel minimums. Prices move with the metal during the day; a quote holds for seven days. Retailer price read from their public page at the time shown; it may have changed. Before shipping and tax.

Not sure this is the right cable? Describe the job and check

18 AWG multi-conductor commercial security and alarm control cable featuring 7-strand bare copper conductors, color-coded insulation, an internal rip cord, and a protective jacket. Available in 2, 3, 4, and 6-conductor configurations, as well as unshielded and overall aluminum-mylar foil shielded (with a 24 AWG tinned copper drain wire) options to defend against signal interference. Offered in Riser-rated PVC (CMR/CL2R/CL3R/FPLR) and Plenum-rated low-smoke copolymer/PVC (CMP/CL2P/CL3P/FPLP) constructions for vertical risers or environmental air-handling plenum spaces. Designed for high-reliability low-voltage installations, including security systems, sound and audio systems, intercoms, fire alarm signaling, and power-limited control circuits. Manufactured to meet current NEC guidelines with descending sequential footage markings for easier tracking and installation.

Specifications

  • Conductor: 18 AWG stranded bare copper (7 strands)

  • Conductor Count Options: 2, 3, 4, or 6 Conductors

  • Shielding Options: Unshielded or Overall Aluminum-Mylar Foil Shield with 24 AWG tinned copper drain wire

  • Insulation Material: PVC [Riser] / Low-Smoke Copolymer [Plenum]

  • Insulation Thickness: 0.009 in

  • Insulation Diameter: 0.064 in

  • Color Code:

    • 2-Conductor: Black, Red / Black, Grey

    • 3-Conductor: Black, Red, White

    • 4-Conductor: Black, Red, White, Green / Black, White, Red, Green

    • 6-Conductor: Black, Red, White, Green, Blue, Brown

  • Jacket Material: PVC [Riser] / Low-Smoke Copolymer or Low-Smoke PVC [Plenum]

  • Jacket Thickness: 0.015 in

  • Outside Diameter:

    • 0.157 in (2-Conductor Unshielded Plenum)

    • 0.163 in (2-Conductor Shielded Plenum)

    • 0.165 in (2-Conductor Shielded Riser)

    • 0.168 in (3-Conductor Unshielded Plenum)

    • 0.172 in (3-Conductor Shielded Riser)

    • 0.183 in (4-Conductor Unshielded Plenum)

    • 0.188 in (4-Conductor Shielded Plenum / Riser)

    • 0.225 in (6-Conductor Shielded Plenum / Riser)

  • Jacket Colors: White / Gray / Yellow

  • Rip Cord: Yes

  • Voltage Rating: 300V

  • Temperature Rating: -4°C to 75°C (-20°C to 75°C for 2-Conductor Unshielded Plenum)

  • Capacitance:

    • 20.1 pF/ft to 24.0 pF/ft (Unshielded)

    • 20.1 pF/ft to 63.0 pF/ft (Shielded)

  • Footage Markings: Sequential descending footage marks

  • Applications: Security Systems, Sound/Audio Systems, Intercom Systems, Fire Alarm Signaling, Power-Limited Controls

  • Standards & Compliances: UL Type CMR / CL2R / CL3R / FPLR [Riser], UL Type CMP / CL2P / CL3P / FPLP [Plenum], NEC Articles 725, 760, 800, ASTM B-3 & B-8, RoHS Compliant