From Utility to Switchgear – 400 mm² THHN/THWN‑2 Copper Wire for Main Trays and Underground
Conductor :
Pure Copper
Insulation:
PVC
Jacket:
Nylon
Rated Voltage:
600V
Standard:
UL83
Description
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Conductor
Pure Copper

Insulation and Sheath
PVC & NYLON

No. of Conductor
single core

Temperature Rating
90°C(wet) & 90℃(dry)
400 mm² Copper THHN/THWN‑2 Wire –Giant Industrial Main Conductor
Featuring a premium PVC insulation and a heavy‑duty nylon jacket, this 400 mm² stranded copper THHN/THWN‑2 wire is rated 600V and UL 83 certified, engineered for the most extreme power distribution in the Philippines. Its massive cross‑section virtually eliminates resistive losses, making it the preferred choice for utility interconnections, large motors, and main switchboard feeds.

THHN/THWN-2 Cable
THHN/THWN‑2 wires manufactured to the Philippines Standard undergo stringent factory testing, ensuring consistent quality and safety in all climates. Their dual‑rating (dry/wet) and nylon armor provide exceptional mechanical protection, reducing lifecycle maintenance costs.

Rated Voltage Uo/U (Um) : 600V

Insulated & Jacket:PVC &NYLON

Standards
UL83

Temperature range
90°C (wet)
90℃ (dry)
Advantages of 400 mm² Copper THHN/THWN‑2 Wire
The 400 mm² size offers near‑maximum ampacity suitable for primary feeders in heavy industries and utility grids. Its rugged jacket resists oils, sunlight, and abrasion, while the stranded copper core remains flexible enough for installation in confined equipment rooms.

| Size of Conductor | No. & Nominal Diameter of Wire | Wall Thickness |
Approxi mate Overall Diameter |
Minimum Insulation Resistance |
Ampacity | Cable Nominal Weight | |||
| MM | Approxi mate AWG |
MM | MM | MM | M-Ohm-Km | 70℃ Wet |
90℃ Dry |
KG/KM | |
| Solid | PVC | NYLON | THWN | THHN | |||||
|
1.6 |
14 | 1x1.60 | 0.4 | 0.10 | 2.60 | 130 | 35 | 35 | 22.62 |
| 2.0 | 12 |
1x2.0 |
0.4 | 0.10 | 3.00 | 110 | 40 | 40 | 33.57 |
| 2.6 | 10 | 1x2.6 | 0.5 | 0.10 | 3.80 | 120 | 55 | 55 | 55.78 |
| 3.2 | 8 |
1x3.2 |
0.8 | 0.13 | 5.06 | 120 | 75 | 75 | 88.33 |
| Stranded | |||||||||
| 2.0 | 14/7 | 7x0.60 | 0.4 | 0.10 | 2.80 | 130 | 30 | 35 | 23.51 |
| 3.5 | 12/7 | 7x0.80 | 0.4 | 0.10 | 3.40 | 110 | 35 | 40 | 39.12 |
| 5.5 | 10/7 | 7x1.00 | 0.5 | 0.10 | 4.20 | 120 | 50 | 55 | 60.56 |
| 8.0 | 8/7 | 7x1.20 | 0.8 | 0.13 | 5.46 | 120 | 65 | 75 | 91.95 |
| 14 | 6/7 |
7x1.60 |
0.8 | 0.13 | 6.66 | 100 | 95 | 105 | 151.77 |
| 22 | 4/7 |
7x2.0 |
1.0 | 0.15 | 8.30 | 100 | 130 | 140 | 236.65 |
| 30 | 2/7 |
7x2.30 |
1.0 | 0.15 | 9.20 | 100 | 160 | 170 | 306.50 |
| 38 | 1-19 | 19x1.60 | 1.3 | 0.18 | 10.96 | 100 | 185 | 195 | 409.82 |
| 50 | 1/0-19 |
19x1.80 |
1.3 | 0.18 | 11.96 | 100 | 220 | 235 | 509.05 |
| 60 | 2/0-19 | 19x2.00 | 1.3 | 0.18 | 12.96 | 80 | 250 | 260 | 618.96 |
| 80 | 3/0-19 | 19x2.30 | 1.3 | 0.18 | 14.46 | 80 | 300 | 320 | 804.44 |
| 100 | 4/0-19 | 19x2.60 | 1.3 | 0.18 | 15.96 | 80 | 355 | 370 | 1013.94 |
| 125 | 250MCM | 37x2.10 | 1.6 | 0.18 | 18.26 | 80 | 400 | 420 | 1286.37 |
| 150 | 300MCM | 37x2.30 | 1.6 | 0.20 | 19.70 | 80 | 440 | 475 | 1542.02 |
| 350MCM | 37x2.47 | 1.6 | 0.20 | 20.90 | 80 | 505 | 570 | 1783.07 | |
| 200 | 400MCM |
37x2.60 |
1.6 | 0.20 | 21.80 | 60 | 540 | 570 | 1946.72 |
| 500MCM | 37x2.95 | 1.6 | 0.20 | 24.25 | 60 | 620 | 655 | 2486.02 | |
| 250 | 500MCM | 61x2.30 | 1.6 | 0.20 | 24.30 | 60 | 620 | 655 | 2437.34 |
| 600MCM | 61x2.52 | 1.8 | 0.23 | 26.76 | 60 | 690 | 715 | 2995.93 | |
| 325 | 650MCM | 61x2.60 | 1.8 | 0.23 | 27.46 | 60 | 720 | 770 | 3191.58 |
| 750MCM | 61x2.82 | 1.8 | 0.23 | 29.36 | 60 | 785 | 845 | 3719.63 | |
| 400 | 800MCM | 61x2.90 | 1.8 | 0.23 | 30.16 | 60 | 810 | 875 | 3927.55 |
| 500 | 1000MCM | 61x3.20 | 1.8 | 0.23 | 32.86 | 60 | 930 | 995 | 4750.91 |
Certification
UL 83 certified; meets Philippines Standard (PNS) and Philippine Electrical Code (PEC). Approved for cable tray use, MTW applications, and wet locations.

Environmental Resistance
EMI Shielding Performance
Flame Retardant Performance
UL Certificated


APPLICATIONS
For industrial building, warehouse, HVAC, pump, motor, data center and retail power distribution, plus branch circuits, cable trays, conduits, feeders, service entrances and underground wiring.

Branch Circuit Wiring
For large induction furnaces in foundries, this wire delivers stable high current, reducing energy losses and heating.

Feeder Circuit Wiring
As a primary feeder for manufacturing plants, it carries power from the utility substation to main distribution boards with minimal losses.

Service Entrance Wiring
As the service entrance for stadiums and arenas, it supports huge lighting and sound system loads during major events.

Underground Conduit Installation
Installed in underground ducts serving airport runways, it ensures reliable power to navigation aids and runway lighting.
Customer Photos
On-site installation photos for conduit, cable tray and service entrance wiring worldwide.

plant equipment
Full-automatic stranding and jacketing machines, strict size and performance inspection.






Packaging Information
Moisture-proof plastic coil and export wooden reel packing for long-distance shipment.

Plastic Reel

Small Wooden Reel

Large Wooden Reel
Global Certification
Complete official test certificates, support customs clearance and global project bidding.

VDE

UL

SAA

TUV

ISO
What are people saying about us
Reliable factory quality, fast delivery and professional technical support for bulk wire orders.


Luis Fernando Pérez - Venezuela - Office Building Project
The wires are of very good quality. The cables need to pass through long pipes and corners, and the cables are very flexible. We also ordered fire-resistant wires, which have been tested by a testing agency and found to be without problems.


Thomas Baker - USA - Factory construction
GERITEL WIRE's engineering team was very professional. They offered suggestions based on our cable requirements, and we found more suitable cable models. Subsequent operation has been stable without any problems.


Ricardo José Herrera - Dominican - Hotel Project
Due to the tight schedule of the hotel project, we had to adjust the usage quantity several times. GERITEL WIRE supplier was very flexible in terms of delivery and packaging, with fast delivery times. The wire reels were clearly labeled, making on-site counting and distribution very convenient.
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