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Industrial Wireways & Metal Electrical Wiring Troughs
Industrial wireways and sheet metal electrical wiring troughs are enclosed raceway systems designed to house, route, protect, and pull large-diameter electrical conductors, power branch feeders, and multi-circuit industrial wiring. Fabricated from heavy-gauge galvanized or cold-rolled steel with ANSI 61 gray polyester powder coating, wireways feature full-length lay-in access through hinged latching covers or screw-on flat covers. Engineered to UL 870 and NEMA 1 / NEMA 3R / NEMA 12 standards, our wireways enable rapid wire pulling without conduit threading, facilitating seamless future electrical expansion across manufacturing plants, motor control centers, and commercial utility rooms.
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Anti-Rust Slotted Cable Tray with Cover Factory Cable Trunking Trough Hinged Wireway for Certified Anti-Dust BESCA- Jiangsu, China+BS+BESCA+Silver+UL,CE,IEC,NEMA
$10.00
MOQ: 500
About Industrial Wireways & Metal Electrical Wiring Troughs
In industrial power distribution and plant engineering, wireways provide superior flexibility, wire-fill capacity, and accessibility compared to traditional rigid conduit piping. When routing multiple large-gauge power cables from switchboards to motor control centers, pulling conductors through rigid conduit pipes incurs severe frictional strain and requires costly threaded bending fittings. Wireways eliminate this difficulty through a continuous lay-in trough design where conductors are effortlessly laid into the open channel along its entire length before closing the cover.
Our industrial wireways are manufactured from heavy-duty 1.5 mm to 2.5 mm (16 ga to 12 ga) steel utilizing automated roll forming and robotic welding lines. Available in cross-sectional sizes from 2.5×2.5 in (65×65 mm) up to 12×12 in (300×300 mm) and lengths up to 10 ft (3.0 m), wireway bodies feature smooth, unburred interior surfaces and rolled hem edges that prevent cable insulation snagging.
Depending on environmental deployment, three specialized NEMA enclosure classes are offered: NEMA 1 General Purpose (featuring quick-release latching hinged or screw covers with concentric knockouts for indoor cleanrooms and electrical vaults), NEMA 3R Rainproof Weatherproof (engineered with drip-shield top lips and external screw-fastened gasketed covers for outdoor utility yards), and NEMA 12 Dust-Tight & Oil-Tight (equipped with continuous seamless polyurethane gasketing, oil-resistant latches, and smooth solid sides to block cooling mist in machine shops).
Applications
Industrial Motor Control Center (MCC) Overhead Feeder Raceways
ANSI 61 gray NEMA 1 hinged wireways suspended above motor control centers (MCC) and variable frequency drive (VFD) cabinets, routing heavy power feeder cables and multi-conductor control wiring. Applications: Heavy manufacturing plant electrical rooms, municipal water treatment plants, and paper mill control vaults. Features: Full lay-in cover access eliminating cable pulling strain, smooth hemmed edges preventing insulation scoring, and high ampacity capacity.
Factory Ceiling Gantry Branch Circuit Power Distribution Wireways
Long-run 10-foot wireway sections mounted along factory ceiling trusses, feeding power drops down to individual machine tool cells, stamping presses, and robotic assembly stations. Applications: Industrial manufacturing workshop floors, automated warehouse distribution facilities, and assembly plants. Features: Concentric knockouts every 300 mm for easy conduit drop-offs, rigid structural cross-section spanning 3-meter hanger intervals.
Outdoor Power Substation NEMA 3R Rainproof Electrical Wireways
Heavy galvanized NEMA 3R weatherproof wireways fitted with drip-shield overhanging hoods installed outdoors in high-voltage substation switchyards, shielding protection and metering cables. Applications: Utility power substations, solar PV inverter collection yards, and wind turbine substation control yards. Features: External drip-proof hood, bottom drainage weep holes, and hot-dip galvanized corrosion endurance against driving rain and snow.
Overhead Bridge Crane Runway Electrification & Conductor Wireways
Rugged steel wireways mounted along crane runway support beams, enclosing long-distance main power feed conductors and runway limit switch wiring against vibration. Applications: Steel service center crane bays, shipyard fabrication docks, and heavy machinery foundry workshops. Features: Vibration-proof captive screw fastening, high resistance to structural crane shock, and fire-resistant metal enclosure.
5G Telecom Base Station & Data Center Battery Room Cable Raceways
NEMA 12 dust-tight and oil-resistant wireways installed inside telecommunication shelters and data center UPS battery rooms, routing high-current DC battery bus cables. Applications: Telecommunication cell tower shelters, data center central battery storage rooms, and microgrid inverter vaults. Features: Continuous oil-resistant neoprene gasketing, acid-resistant powder coat finish, and secure key-lockable latch covers.
Technical Overview
| Parameter | Information |
|---|---|
| Industry Certifications | UL 870 Listed / NEMA 250 / cUL / CSA C22.2 No. 26 / NEC Article 376 |
| Enclosure Classification | NEMA Type 1 (Indoor) / NEMA Type 3R (Outdoor Rainproof) / NEMA Type 12 (Dust & Oil Tight) |
| Cross-Sectional Dimensions | 2.5×2.5 in (65×65 mm), 4×4 in (100×100 mm), 6×6 in (150×150 mm), 8×8 in, 10×10 in, 12×12 in (300×300 mm) |
| Standard Unit Lengths | 1 ft (300 mm), 2 ft (600 mm), 3 ft (900 mm), 4 ft (1200 mm), 5 ft (1500 mm), 10 ft (3000 mm) |
| Sheet Steel Gauge | 14 Gauge (1.9 mm) and 16 Gauge (1.5 mm) heavy-duty cold-rolled or galvanized steel |
| Cover Construction | Hinged cover with quick-release draw latches / Screw-cover with captive plated screws |
| Surface Coating & Color | ANSI 61 Gray thermoset polyester powder coating over phosphatized steel / Raw HDG |
| Gasketing (NEMA 12 / 3R) | Continuous seamless formed-in-place closed-cell polyurethane or oil-resistant neoprene gasket |
| Knockout Options | Supplied with concentric knockouts (1/2 in to 2 in) or smooth solid walls without knockouts |
| Fittings & Connectors | Telescopic fittings, 90° lay-in sweep elbows, tees, crosses, reducers, barrier strips, hangers |
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FAQ
What is the primary operational distinction between a wireway and electrical conduit?
Wireways feature full-length removable or hinged covers that allow technicians to lay conductors directly into the trough along its entire length, eliminating the physical labor and cable jacket friction of pulling wires through circular conduits.
What standards and code certifications govern your industrial wireway systems?
Our wireway systems are manufactured and tested in strict accordance with UL 870 (Wireways, Auxiliary Gutters, and Associated Fittings), NEMA 250 (Enclosures for Electrical Equipment), and National Electrical Code (NEC Article 376) standards.
What is the maximum allowable conductor fill capacity inside an electrical wireway?
Per NEC Article 376, the maximum cross-sectional area of all conductors at any cross section must not exceed 20% of the internal interior cross-sectional area of the wireway, with derating factors applied when more than 30 current-carrying conductors are installed.
What is the difference between NEMA 1 and NEMA 3R wireway enclosures?
NEMA 1 wireways are designed for indoor general-purpose use against falling dirt and contact, whereas NEMA 3R wireways incorporate overhanging drip-shield hoods and drain weeping holes to resist falling rain and sleet in outdoor installations.
Are concentric electrical knockouts provided on wireway bodies?
Yes, NEMA 1 models can be ordered with precision concentric knockouts on both top and bottom walls (accommodating conduit sizes from 1/2 in up to 2 in), or supplied completely knockout-free (smooth walls) for custom field punching.
How are hinged lay-in wireway covers latched and secured?
Hinged wireways utilize continuous piano hinges or lift-off slip hinges secured by quick-release tool-operated draw-pull latches, or slotted captive screws that prevent lost hardware during maintenance.
Can wireways be painted custom colors to match corporate plant standards?
Standard finish is electrostatically applied ANSI 61 gray polyester powder coat over phosphatized steel, with custom options including safety orange, traffic yellow, high-gloss white, or unpainted hot-dip galvanized and stainless steel.