

This Month Promotion ❤️ with extra discounts up to 5%. Discounts for new customers, the more you buy, the more you save, up to 55,000 baht! Until November 30.
This Month Promotion ❤️ with extra discounts up to 5%. Discounts for new customers, the more you buy, the more you save, up to 55,000 baht! Until November 30.

THW-A aluminum wire 240 sq.mm: single-core, PVC insulated, 750V to TIS 293-2541, up to 426 A in free air. For main feeders from transformer to switchboard in large buildings. BCC in 100 m rolls. Order for your project with nationwide delivery at OneStockHome.



THW-A aluminum wire 240 sq.mm is a single-core wire with an aluminum conductor and black PVC insulation, rated for up to 750 volts and a 70°C conductor temperature under TIS 293-2541. This size is used as the main feeder from the transformer to the main distribution board (MDB) of large buildings, factories and projects.
Under TIS 293-2541, THW-A 240 sq.mm carries up to 426 A continuously in free air. In conduit, in bundles or at high ambient temperature the usable current is lower, so have an engineer or electrician size the wire from the load and run length (voltage drop) before you order.
Item | Detail |
|---|---|
Conductor | Aluminum, 61/2.23 (wires/mm) |
Insulation | Black PVC, 2.3 mm |
Overall diameter | Approx. 25.0 mm |
Max conductor resistance at 20°C | 0.125 ohm/km |
Max current (free air) | 426 A |
Approx. weight | 900 kg/km |
Voltage / conductor temperature | 750V / 70°C |
Standard | TIS 293-2541 |
OneStockHome stocks BCC THW-A aluminum wire 240 sq.mm in 100 m rolls. Check the latest price and order with nationwide delivery.
Nearby sizes: THW-A aluminum wire 185 sq.mm, THW-A aluminum wire 300 sq.mm. Or see all THW-A aluminum wire sizes with the ampacity chart.