4 awg wire too large for circuit breakers

The correct way to do this is to set up a sub panel with larger breakers nearer to the stock tank, and put the 20A breaker in there with smaller wire and the appropriate breaker. You’d still have the same 4awg run, but you’d connect it with 40A breakers which should fit the 4awg wire.

Will 4 gauge wire fit in a breaker?

However, some electricians hold the opinion that only 4 AWG wires should be installed for 60 amp breaker panels. They reason that this 60 amp sub panel wire size is the gold standard for 60 amp subpanels. This is because 4 AWG can hold more amperage compared to 6 AWG.

Will #4 wire fit into a 50 amp breaker?

For 50 amps, you could use 4 AWG wire with 85A ampacity (a bit of overkill but it’s OK), but you can never use 8 AWG wire with 50A ampacity (you will fry the circuit). In most cases, 6 AWG is an almost perfectly-sized wire for a 50 amp breaker. In limited cases, you will probably have to use a larger 4 AWG wire.

Will #4 wire fit in a 60 amp breaker?

4 AWG can handle 85 amps; that’s more than enough ampacity to adequately wire a 60 amp breaker, even accounting for the 80% breaker rule.

Can 4 AWG handle 100 amps?

As you can see from the chart above, these are the wire ampacities in the vicinity of 100 amps: #4 AWG can handle 85 amps. #3 AWG can handle 100 amps. #2 AWG can handle 115 amps.

How many amps can 4 AWG handle?

4 gauge wire cross-section is 21.2 mm2. With such a cross-section and 4.89 turns of wire per inch, this kind of wire can handle quite a lot of amps. It has a rated ampacity of 85 amps at 75°C. This means that, for average use, the 4 gauge wire can handle up to 85 amps safely.

What size wire will a 100 amp breaker accept?

For 100 AMP service, you’ll need a #4 AWG copper wire or #2 AWG aluminum or copper-clad wire. Make sure to limit your voltage drop to 3% regardless of distance.

What size wire do I need for 30 amps at 200 feet?

In most cases, you will need an #8 AWG wire for a 30 amp 240V circuit. The key for 30 amp wire sizing is to account for 2 NEC codes, namely: NEC 220-2 Code. This requires that a conduit wire’s maximum load (30 amps) represents 80% of ampacity of that wire.

What size wire do I need to run 50 amps 100 feet?

6

For a maximum of 50 amps, you’ll need a wire gauge of 6. Fifty amp breakers are most often used to power many different appliances.

What gauge wire do you use with a 50 amp breaker?

According to the American Wire Standard (AWS), a 50-amp circuit breaker requires a wire of at least 6-gauge as the conductor for the circuit. Using a thinner wire gauge will result in your electrical system not being up to code and can pose a severe safety risk.

Is #4 Thhn good for 100 amps?

No good. #4 THHN is only rated for 85 amps at 75° C. This would be for MC cable or conductors in a raceway. SE cable in thermal insulation or NM cable would be rated at 60° C which has an ampacity of 70 amps.

What wire size do I need to go 100 feet for a 100 amp service to a workshop?

For a 100 ampere circuit, the conductors will likely be required to be 3 AWG copper or 1 AWG aluminum.

How many amps will #4 Thhn wire carry?

Allowable Ampacities of Insulated Copper Conductors

What is 4 AWG wire used for?

This wire is 4 AWG, good for 95 Amp when used in conduit with less than 3 conductors. This wire is rated for use in dry or wet locations, raceways, or conduit. It can be used outside exposed to the weather as well, though the insulation is not 100% UV-proof and installation in conduit is recommended.

How many watts can 4 gauge handle?

Any reasonably powerful system would do fine with 4 gauge wire. 4 gauge wire easily support 1000+ watts.

How many amps can 4 0 copper wire carry?

4/0 Welding Cable carries 310 Amps for 600 volt in-line applications. 4/0 Welding Cable is an extremely flexible cable with pure fine stranded copper.

What is #4 copper rated for?

Table 310.15(B)(17)

How many amps can 4 0 aluminum wire carry?

Allowable Ampacities of Insulated Aluminum or CopperClad Aluminum Conductors

What size wire do I need for 200 amp service?

The Short Answer: Like with aluminum, you’ll need a #4/0 copper-clad aluminum wire for a 200 amp service.

Which is bigger 2 AWG or 4 AWG?

The bigger the AWG number, the smaller the physical size of the wire.