From $0.20/ft
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Solid THHN/THWN-2 WireFrom $0.20/ft -
Solid THHN/THWN-2 WireFrom $0.20/ft - Solid THHN/THWN-2 WireFrom $0.20/ft
- Solid THHN/THWN-2 WireFrom $0.20/ft
Parent SKU : TCTFN18-2
SKU : TCTFN18-2-250
"An efficient, space-saving design engineered for low-profile industrial automation panels, signal monitoring loops, and commercial communication infrastructure."
When wiring tight enclosures, machine stations, or packed trays, space equals efficiency. The 18/2 Flat VNTC balances an ultra-low profile with industrial-grade durability. Featuring stranded copper TFFN conductors encased in a flame-retardant, UV-resistant PVC jacket, its parallel flat design completely eliminates internal cable twisting, maximizes airflow, and slashes installation time.
Versatile Routing Approvals: Fully code-compliant for deployment in open-air trays, supported by messenger wire, pulled through structural conduits, or laid in deep under-floor ducts.
Direct Burial & Outdoor Rated: Built with a sunlight-resistant, moisture-proof outer shield that permits direct underground trenching and exposed outdoor installation.
Ultra-Low Profile Flat Architecture: Built with a parallel conductor setup that drastically reduces vertical clearance requirements, allowing for maximum nesting efficiency inside shallow structural trays or surface raceways.
Premium High-Flex TFFN Cores: Individual conductors feature fine copper stranding to deliver superior bend radii and defend control circuits against physical fatigue from machinery vibration.
ENGINEERING OVERVIEW
Conductor Configuration: 2 Conductors (Parallel Flat Geometry, Unshielded)
Conductor Size: 18 AWG
Conductor Material: Fully annealed bare copper Class B compressed strand per ASTM B3 and B8
Conductor Insulation: Heat & Moisture Resistant PVC with a Polyamide Nylon Outer Skin (Type TFFN)
Conductor Color Coding: Black and Red
Outer Jacket Material: Flame-Retardant, Sunlight-Resistant Black Polyvinyl Chloride (PVC)
Voltage Threshold: 600 Volts
Thermal Range Limits: 90°C Dry / 75°C Wet Exposure
UL Listings & Code Compliances: UL 66, UL 83, UL1277 UL 1685 Vertical-Tray Fire-Propagation and Smoke-Release Test Approved as Type TC or TC-ER-JP, Sunlight Resistant, Direct Burial ASTM B3, ASTM B8 NEC Article 336, Article 501, Article 725 for class 1 circuits.
Industrial Automation & PLC Signaling: The trade benchmark for routing dedicated data inputs, automated sensor lines, and emergency stop arrays back to central programmable logic controllers (PLCs).
Space-Restricted Surface Raceways: Ideal for multi-wire signaling runs inside shallow metal raceways, office baseboard tracks, and low-clearance perimeter channels.
Commercial Building Automation: Deployed heavily to wire institutional lighting grids, localized smart thermostats, ventilation dampeners, and terminal control units.
Hazardous Environment Infrastructure: Fully certified by the National Electrical Code for safe deployment inside Class 1, Division 2 chemical processing facilities and industrial spray booths.
Technical Note: All values are nominal and subject to industry tolerances and manufacturer corrections. Specifications are subject to change without notice. It is the buyer’s responsibility to verify that all materials meet the specific requirements of the project and comply with local electrical codes.
Flat Construction is NOT TC-ER rated. Pair cables are Black, Red and numbered. Triad cables are Black, Red, Blue and numbered. Colors repeats after 36 conductors. There are no Green or White conductors or stripes
| Wire Size (AWG/MCM) | 18 AWG |
| Conductor Material | Copper |
| Conductor Type | Stranded |
| Strand Count | 16 |
| Outer Diameter (OD) (in/mm) | .189 x .287 in. |
| Jacket Type | (PVC) Polyvinyl Chloride |
| Conductor Count | 2 |
| Shield | Unshielded |
| Insulation Type | (PVC) TFN |
| UL Listing Numbers | UL 66, UL 83, UL1277, UL 1685 |
| Voltage Rating | 600V |
| Ampacity Rating | 6 |
| Direct Burial Rating | Yes |
| Submersible | No |
| Sunlight Resistance Rating | Yes |
| Temperature Rating | 90ºC |
| Standards | UL 66, UL 83, UL1277 UL 1685 Vertical-Tray Fire-Propagation and Smoke-Release Test Approved as Type TC or TC-ER-JP, Sunlight Resistant, Direct Burial ASTM B3, ASTM B8 NEC Article 336, Article 501, Article 725 for class 1 circuits. |
| Miscellaneous Information | All values are nominal and subject to correction. Flat Construction is NOT TC-ER rated. Pair cables are Black, Red and numbered. Triad cables are Black, Red, Blue and numbered. Colors repeats after 36 conductors. There are no Green or White conductors or stripes |
| Primary Applications | Industrial Power and Control Systems, Building Automation and Energy Management, Utility and Substation Wiring, Instrumentation and Process Control, Cable Tray Installations, Outdoor and Direct Burial. |
| Common Uses |
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| Weight per Foot | 0.035 lb |
In-stock orders placed before 3pm EST typically ship within 1-2 business days. Our business days are Monday through Friday; we do not process orders on Saturday, Sunday, or major US Holidays.
You will receive an e-mail with a tracking number within 1-2 business days from the time its shipped. You will also be able to view your order status and tracking numbers in your account order history.
Expedited shipments are delivered Monday-Friday except on US Holidays. The order must be placed before 12pm CST to ship same day ( Mon-Fri Only).
You have 30 days from the day you receive the item to contact us for a return. Returns are subject to a 30% Restocking Fee.
Please contact us at help@wireamerica.com to request a return authorization. Have your order number or name the order was placed with ready and we will email you an RMA (return) number and instructions for return. Currently, we do not offer exchanges. A new order must be placed if you need a different item. If you provide the new order number at the time of your return request, the restocking fee may be lowered.
Orders on any items with a material value of $50 or less are non-returnable.
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Physical Specifications
Technical Specifications
Usage & Installation:
Packaging & Dimensions:
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The core benefits are space savings and structural stability. Flat tray cables feature conductors that run strictly parallel, resulting in a low-clearance height profile that allows them to be stacked or laid flat inside shallow raceways where round cables bunch up. Additionally, flat cables don't suffer from internal core twisting during long pulls, distribute stress evenly across the conductors, and allow for cleaner heat dissipation when packed closely together.
While both contain two 18 AWG wires, 18/2 Flat Tray Cable is an industrial-grade, 600-Volt rated conductor system protected by a heavy-duty, flame-retardant PVC jacket. Standard thermostat wire is a light-duty, low-voltage line usually capped at 150V or less, with thin insulation that is strictly prohibited inside industrial trays, hazardous environments, or direct-burial trenches. Tray cable is built to survive extreme heat, moisture, oils, and physical impacts that would destroy thermostat wire.
Yes, absolutely. The dual-layer protection of the cross-linked PVC/Nylon wire coatings combined with a heavy-duty outer Polyvinyl Chloride (PVC) jacket makes this cable fully code-compliant for direct burial in underground trenches, wet settings, or concrete encasements without requiring independent plastic conduit piping.
No. Under the National Electrical Code (NEC Article 336), 2-conductor control cables under 6 AWG rarely carry the "-ER" (Exposed Run) stamp because they are too physically narrow to pass the brutal structural crush testing required for unprotected open air hangs. This cable is listed as Type TC, meaning it must remain supported inside open cable trays, raceways, or structural conduit when routed through a facility.
Per National Electrical Code guidelines, an 18 AWG copper control conductor has a baseline ampacity capability of 6 Amps. Because control cables are engineered to transmit low-amperage electronic signals, data pulses, and low-load relay switches rather than power heavy electrical loads, their continuous operating currents should remain well below this threshold.
Wire America supplies an extensive inventory of tray cable cut by the foot or on master reels. We ship directly from our regional hubs located across the United States, delivering most orders right to your shop or job site within 2 to 4 business days. We prioritize shipping tray cable from the warehouse nearest to your job site to keep transit times minimal. Expedited shipping options are available at checkout for time-sensitive contractor deadlines.
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