Welding Cable Ampacities
Welding Cable is manufactured with flexible copper strands in 30 awg or 34 awg depending on the flexibility you need. It's rated for 600 volts and has a rubber EPDM insulation that is abrasion resistant and RoHS complient. If you need the 34 awg extra flexible welding cable see our Super Vu Tron material.If you need a cable with higher voltage take a look at our Type W power cable that rates for 2000 volts.
This table is for Secondary Voltage leads only! Do NOT use this table for 600 Volt in-line applications |
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|---|---|---|---|---|---|---|---|
| AMPS | 100' | 150' | 200' | 250' | 300' | 350' | 400' |
| 100 AMPS | #4 | #4 | #2 | #1 | #1 | 1/0 | 1/0 |
| 150 AMPS | #4 | #2 | #1 | 1/0 | 2/0 | 3/0 | 3/0 |
| 200 AMPS | #2 | #1 | 1/0 | 2/0 | 3/0 | 4/0 | 4/0 |
| 250 AMPS | #1 | 1/0 | 2/0 | 3/0 | 4/0 | ||
| 300 AMPS | 1/0 | 2/0 | 3/0 | 4/0 | |||
| 350 AMPS | 1/0 | 3/0 | 4/0 | ||||
| 400 AMPS | 2/0 | 3/0 | |||||
| 450 AMPS | 2/0 | 4/0 | |||||
| 500 AMPS | 3/0 | 4/0 | |||||
| 550 AMPS | 3/0 | 4/0 | |||||
| 600 AMPS | 4/0 | ||||||
| For 600 Volt In-Line Applications | |
|---|---|
| AWG Size | AMPS |
| Welding 6 | 75 AMPS |
| Welding 4 | 100 AMPS |
| Welding 2 | 140 AMPS |
| Welding 1 | 160 AMPS |
| Welding 1/0 | 190 AMPS |
| Welding 2/0 | 223 AMPS |
| Welding 3/0 | 265 AMPS |
| Welding 4/0 | 310 AMPS |
| Welding 250 | 445 AMPS |
| Welding 350 | 552 AMPS |
| Welding 500 | 695 AMPS |
This is our standard flexible welding cable which has a rubber insulation and it's much more flexible than the standard THHN electrical wire. Super Vu Tron has a thicker insulation than standard welding cable. The thicker insulation allows for a lot more impact to extend the life of the cable even longer. If you need a basic welding cable you can visit our standard flex welding cable page.
Other power cables include: DLO cable offers a higher voltage but isn't as flexible as welding cable. DLO cable (locomotive cable) also has tinned copper instead of bare copper strands. Type W power cable is another type that offers a rubber jacket over the standard insulation for industrial use. This type of cable takes a lot of abuse out in the field by getting run over by machines and dragged across concrete and rocky surfaces.
If you're having trouble finding the exact welding cable or power cable then call us for help! We have knowledgeable sales people on staff to help you with all of your wire and cable needs.