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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 #1803UCMPRG - Plenum (Unshielded)
$238.35/ reelIn stock
DownloadsDatasheet (PDF)(342 KB)
reel
Price check 1804SCMPRWSep 11, 2026, 11:11 AM ET

31.9% less here than the lowest price we found, $350.00 per 1000 ft at Nassau National Cable (identical part). That is $111.65 a reel, or $1,116.50 on 10 reels.

in stock

Priced this morning at copper $6.55/lb: the conductor is $128.80 of this reel, so a 5% move in copper moves the price about $6.44. The rest holds.

Price sheetShare cardEvery comparisonHow we check

Cut to length, no reel minimums. Retailer price read from their public page at the time shown; it may have changed. Before shipping and tax.

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