14 AWG 12-Conductor VNTC (Vinyl Nylon Tray Cable) is an industrial-grade, multi-conductor power, control, and signaling cable engineered for installation in commercial wireways, cable trays, and structural conduits. Featuring twelve 14 AWG conductors twisted into a dense, round core, this cable utilizes high-performance THHN/THWN-2 inner conductor insulation wrapped in a heavy-duty, sunlight-resistant Polyvinyl Chloride (PVC) outer jacket. This configuration provides a highly durable, moisture-resistant wiring system optimized for routing dense control bundles, multi-point automated logic circuits, and multi-circuit utility runs through demanding overhead or underground raceways.

AMPACITY RATINGS (NEC 310.16)

• 60C Terminal Rating: 15 AMPS This is the baseline engineering safety rating. Use this value for final circuit sizing under normal operating conditions when connecting to standard equipment terminals or legacy breaker lugs restricted to 60C constraints.

• 75C Terminal Rating: 20 AMPS This is the standard engineering design rating. Use this value for modern industrial terminal configurations, as it represents the typical maximum operational ampacity for a 14 AWG copper conductor under normal code constraints.

• 90C Terminal Rating: 25 AMPS This is the maximum capacity rating. Use this value strictly as the baseline calculation factor when adjusting or derating for high ambient operating temperatures, or when bundling multiple tray cables together in packed industrial raceways.

Key Features

• Industrial Round Profile Construction: The twisted-conductor architecture maximizes physical roundness and structural symmetry, providing uniform physical strength and effortless pull-ins through long conduit layouts or multi-bend raceways.

• Dual THHN / THWN-2 Conductor Insulation: Inner copper conductors are wrapped in high-dielectric PVC and topped with a rugged clear nylon skin. This dual-layer architecture ensures superior resistance to oil, gasoline, moisture, and insulation scraping during difficult installations.

• Direct Burial & Sunlight Resistant: Protected by an extruded, flame-retardant outer PVC jacket that forms an impermeable barrier against harsh ambient conditions, making it safe for open air tray runs, direct direct-burial trenching, or wet environments.

• Highly Conductive Bare Copper: Manufactured with high-purity, soft-annealed stranded bare copper conductors to deliver optimal electrical conductivity, minimal line resistance, and sufficient physical flexibility for long pulled runs.

• Rigorous Industrial Flame Ratings: Engineered to prevent the migration of fire across open structural paths, fully certified to pass the demanding IEEE 1202 / UL 1685 vertical tray flame tests.

Common Applications

• Industrial Control & Signaling: Routing digital command inputs, complex multi-point PLC loops, multi-stage relay logic tracks, and automated sensor returns in manufacturing plants, wastewater treatment zones, and assembly environments.

• Lighting & Power Branch Circuits: Supplying continuous power to complex automation lines, multi-wire branches requiring multiple dedicated indicator and control lines, emergency lighting pathways, and industrial machinery sub-circuits.

• Conduit and Wireway Routing: Pulling multi-circuit infrastructure connections through structural conduits, commercial utility tunnels, underground duct banks, or open-air wire mesh trays.

• Hazardous Environment Deployment: Approved under strict National Electrical Code provisions for installation within Class I, Division 2 hazardous industrial locations.

Circuit Identification: Standard 12-Conductor Phasing (ICEA Method 1, Table E-2)

• Conductor 1: Black

• Conductor 2: Red

• Conductor 3: Blue

• Conductor 4: Orange

• Conductor 5: Yellow

• Conductor 6: Brown

• Conductor 7: Red with Black Stripe (Tracer)

• Conductor 8: Blue with Black Stripe (Tracer)

• Conductor 9: Orange with Black Stripe (Tracer)

• Conductor 10: Yellow with Black Stripe (Tracer)

• Conductor 11: Brown with Black Stripe (Tracer)

• Conductor 12: Black with Red Stripe (Tracer)

• Note: VNTC constructions typically include a continuous printed identification code on the surface of the jacket for circuit tracking.

Technical Specifications

• Conductor Size: 14 AWG

• Number of Power Conductors: 12

• Conductor Type: Stranded Bare Copper

• Insulation Material: PVC with Nylon Skin (THHN/THWN-2)

• Shielding: None (Unshielded)

• Jacket Material: PVC (Polyvinyl Chloride) – Black

• Voltage Rating: 600 Volts RMS

• Maximum Temperature Rating: 90C Dry / 90C Wet Continuous Operating

• Flame Test Ratings: IEEE 1202, UL 1685 Vertical Tray Flame Test, FT4

• Compliance Standards: UL 1277 (Type TC), NEC Article 336, Type THHN/THWN-2 Conductors, RoHS Compliant

Technical Note: When engineering layouts with multi-conductor tray cables like the 14-12 VNTC, installers must apply ampacity adjustment factors for more than three current-carrying conductors per NEC Article 310.15(C)(1). For a 12-conductor cable where all lines carry continuous current, the ampacity must be derated to 50% of its baseline rating. Using the 90C baseline (25 Amps), the adjusted ampacity calculation drops to 12.5 Amps. This derating must be closely balanced against the total continuous load of the circuit to ensure compliance and avoid overcurrent trip faults or excessive heat generation within the cable core.

CABLE TYPE: 14 AWG / 12-Conductor Stranded Round THHN/PVC Type TC Tray Cable

DISCLAIMER: The technical information provided is for general reference only. Large-scale industrial power distribution paths, tray layouts, and machinery connections must strictly adhere to the National Electrical Code (NEC), local building structures, and relevant industrial safety parameters. Always cross-reference the official product submittal data sheet from the chosen manufacturer prior to finalizing physical system designs or cutting structural cable lengths.