Heavy‑Duty 38 mm² Copper THHN/THWN‑2 Wire – Philippines Standard for Underground and Conduit
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)
38 mm² Copper THHN/THWN‑2 Wire –Robust Underground Feeder
Constructed with a thick PVC base and a rugged nylon jacket, this 38 mm² THHN/THWN‑2 copper wire is rated 600V and UL 83 listed, ensuring reliable performance in wet or corrosive environments common in the Philippines. Its stranded design provides excellent bendability, and the bare copper core guarantees low resistance for long‑distance power transmission.

THHN/THWN-2 Cable
The Philippines Standard THHN/THWN‑2 series offers superior moisture and heat resistance, making it ideal for tropical climates where humidity and temperature fluctuations are prevalent. These wires are fully compliant with local codes, ensuring safe and legal installations across all project types.

Copper Conductors

Rated Voltage Uo/U (Um) : 600V

Insulated & Jacket:PVC &NYLON

Standards
UL83

Temperature range
90°C (wet)
90℃ (dry)
Advantages of 38 mm² Copper THHN/THWN‑2 Wire
The 38 mm² size delivers high ampacity, reducing the need for parallel runs in many feeder applications. Its rugged nylon outer layer protects against cuts and abrasion during underground pulls, while the insulation maintains integrity even when exposed to water and chemicals.

| 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, complies with Philippines National Standard (PNS) and Philippine Electrical Code (PEC). Also suitable for MTW applications and approved for use in cable trays and raceways.

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.

Cable Tray & Raceway Systems
In processing plants, it withstands steam and mild chemical splashes, ensuring long service life in open tray runs.

Conduit Wiring
Pulled through PVC conduits buried in concrete, its jacket resists moisture ingress, preventing insulation breakdown over time.

Service Entrance Wiring:
Used as a service drop for small warehouses, it meets utility requirements and provides reliable power intake from the grid.

Branch Circuit Wiring
In small retail stores, this 22 mm² wire safely powers lighting and receptacle circuits, ensuring stable voltage for point‑of‑sale systems and display units.
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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