What size wire for 70-amp subpanel?
You can also use 6 THHN wire because it can accommodate 55 – 70 amps. But 4AWG is still better, especially for people that want a stable power supply to run welders, drills, and other heavy-duty tools. What Size Wire For A 70-Amp Subpanel?
What size wire do I need to run a 70 amp breaker?
Instead, copper wires should be sized according to the breaker’s requirements. If you are using an eight-gauge wire to run a 70 amp breaker, you should use 4 or six-gauge wire. However, copper wires are more durable and can carry more ampacity than their aluminum counterparts.
What is a 70 amp breaker used for?
A 70 amp breaker is usually designed to protect appliances, computers, and lights. The wire size must match the breaker’s capacity. In most cases, you can use the same wires as before. However, if you are unsure of the wire size, it’s best to consult an electrician for advice.
Can you use aluminum wire for 100 amp sub panel?
Copper wire is also costlier than aluminum wires, giving it a prominent disadvantage economically. If you decided to use aluminum wire for your 100 amp sub panel, you should therefore use #2 aluminum wires to avoid malfunctions such as short circuits that may cause electrical damage to your components.
What size wire is needed for a breaker?
What is the classic blunder?
How many Q&A communities are there on Stack Exchange?
What is the meaning of "back up"?
What is the drop of 6cu/4al?
What would be the number of a 55A circuit breaker?
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60 or 70 amps to small sub panel | DIY Home Improvement Forum
please advise proper conduit size and correct gauge of wire that I should be using, the plan is to come out of the existing homes all in one meter box, it has extra C/B spaces, I want to put is a 60 amp or 70 amp 2 pole circuit breaker to then feed approximately 50 foot, to the...
Wire options for a 70 amp subpanel | DIY Home Improvement Forum
I am going to be installing a 70 amp subpanel for my new attached garage. Could you guys tell me what options I would have as far as wire to feed it with? I would like to avoid having to run conduit if possible. It will be around a 40 foot run to the sub. Can I use a 4/3 romex? Or is there a...
70A feeders #6 wire? | Mike Holt's Forum
Hi Can l use #6 copper wire to feed sub panel that has 70a main cir.brkr in the swbd In a residential multiunit apart. Bldg
10 Best 70 Amp Breaker Wire Size of 2022 - Plumbar Oakland
Do you need help deciding which is best 70 Amp Breaker Wire Size to use? Based on expert reviews, we ranked them. Here are the top ranked 70 Amp Breaker Wire Size, including those that sell well.
CEC - 70 amp on #6 | Electrician Talk
Any foreseeable code issue feeding a sub panel with 6/3 and a 70 amp breaker? Typical residential sub panel is fed with #6 and a 60, but I found myself...
Why use copper wire instead of aluminum wire?
Another factor why you should consider choosing copper wire instead of aluminum wire is that copper wire possesses high tensile strength — meaning it has much higher resistance and protection against breakage. It also expands less at high temperatures compared to aluminum.
Why is copper wire used in modern homes?
Copper wires are extensively used in modern houses and infrastructures due to the wire’s great conductibility and stability. Its stability and effectiveness in conducting electricity cannot be closely compared to aluminum wires or any other material, giving copper the best output when talking about efficiency in power, next to silver.
What type of wire do most homes use?
Most houses use copper wires for wiring installations, including sub-panels and other electrical components. Bigger infrastructures, including electrical posts, use aluminum wires instead of copper.
Why is aluminum wire used?
Due to abundance, the use of aluminum wire, although less conductive, is widely accepted because it offers a cheaper cost, unlike copper wire. Sacrificing a little bit of efficiency for the purpose of economical gain may be a tough call but a worthy shot.
What is the American gauge?
American Wire Gauge is the standard when measuring wire sizes. Gauge simply describes the thickness of the wire through numbers. The smaller the number, the thicker the wire will be and vice versa.
What should be the top priority before doing electrical installations?
Aside from fire safety, your physiological safety should be the top priority. In other words, before doing any electrical installations, you should be attentive to things like:
Is copper wire heavier than aluminum?
One drawback of choosing copper wire instead of aluminum wire is that copper wire somehow is heavier than aluminum when using the same volume. Copper wire is also costlier than aluminum wires, giving it a prominent disadvantage economically.
What size wire is needed for a breaker?
There is a mininum wire size which is requiredbased on the circuit breaker rating. That size is #4 copper or #2 aluminum.
What is the classic blunder?
However, the classic blunder is doing your voltage drop calculation based on the breakernumber. Actually, you should be doing the voltage drop calc based on your computed loads.
How many Q&A communities are there on Stack Exchange?
Stack Exchange network consists of 178 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
What is the meaning of "back up"?
Making statements based on opinion; back them up with references or personal experience.
What is the drop of 6cu/4al?
OK. The result is 6cu/4al with 2.29% drop, which is smaller than our "minimum mandatory" size above -- so we must use the minimum mandatory.
What would be the number of a 55A circuit breaker?
By the way, if the circuit was 55A (breaker 60A) that would be #6Cu/#4Al.
