4 Gauge Welding Cable Amp Rating

Welding cable size is measured by the american wire gauge awg standard.

4 gauge welding cable amp rating.

For arc welding cable applications length in feet for total circuit for secondary. The number and type of electrical devices connected to a circuit determine the ampacity requirement of the conductor. You must use the correct size wire for the current load requirement of the circuit to prevent the wire from overheating. 1 current ratings for up to 1000 v pvc insulated single and multicore wiring cables ambient temperature up to 30 o c values for resistance are based on electrical resistivity for copper 1 724 x 10 8 ω m 0 0174 μω m and electrical resistivity for aluminum 2 65 x 10 8 ω m 0 0265 μω m.

Usually a general purpose house circuit is designed for 20. If you have the specifications readily. 4 0 the total circuit length includes both welding and grounds leads based on 4 volt drop 60 duty cycle. Use the amp chart below to look up the rated.

View the awg reference table below for dimensions and sizing of welding cable. Welding cable ampacity also known as current capacity or amperage rating refers to the maximum amount of electrical current that a cable can safely conduct. The total circuit length includes both welding and grounds leads based on 4 volt drop 60 duty cycle. The tables below are intended to be a general guide for wire size and amp ratings.

Awg sizes will have three numbers for example 2 awg 625 30 this means that the welding cable has a total cross sectional area of 2 awg and is made from 625 strands of 30 awg wire. Likewise when the length of the cord exceeds fifty feet there is a decrease in amperage. When a cord has three current carrying conductors there is a decrease in amperage. These values for current carrying capacity are based on a copper temperature of 60 c 140 f an ambient temperature of 40 c 104 f and yield load factors from approximately 32 for the 2 awg cable to approximately 23 for the 3 0.

The amperage rating of a cord is a function of the wire gauge number of current carrying conductors and length of the cord. 60 c 140 f 75 c 167 f awg mm copper. Amps 100 150 200 250 300 350 400. The important specs to go by when choosing the appropriate wire that is suitable for your applications are the wire gauge amp voltage rating and the length needed.

Besides the cross sectional area other factors that impact the ampacity of welding cable are its length ohm rating i e resistance rating temperature ratings of the insulation. The welding cable size chart below includes the wire gauge length of the wire diameter weight technical details and color of available. The higher the gauge number the smaller the. 550 3 0 4 0 600 4 0 welding cable ampacities the total circuit length includes both welding and ground leads based on 4 volt drop 60 duty cycle required cable sizes.