0
Can you have a 40 amp breaker with feeding a 100 amp shop panel. I have about 30 feet of 8 wires 4 between the two.?
Wiki User
∙ 13y ago
Answer for USA, Canada and countries running a 60 Hz supply service.
Yes, a 40 amp breaker can feed a 100 amp rated sub panel. The #8 wires are appropriate and the 4 wires consist of 2 hots, a neutral, and a ground. As a sub panel you keep the grounds and neutrals isolated from one another. If you are unsure of how to do this, consult a licensed electrician.
<><><>
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How many wires meter to breaker panel?
4 wires. 2 hot legs, 1 neutral leg, and 1 ground wire.
Found 2 wires on a single circuit breaker why?
If it was two wires under one screw on a single-pole breaker, that would not be proper, and most probably against electrical code.If it was two wires, each under their own screw on a double-pole breaker, then that would be a 220 volt circuit; each wire going to its own "leg" of the breaker panel.
How do you wire a 15 amp 120V breaker in a 240v 30 amp breaker panel?
Look to see if the 30 amp panel is fed with a two wire or a three wire. If it is a two wire then you are out of luck. If the panel is fed with a three wire then the panel should have the neutral terminated in the panel. It is this neutral that you need for 120 volt connections. You didn't state how many panel slots there are in the panel. If you are able install a 15 amp breaker into the panel and connect the wires going to the load. The black wire will go to the breaker and the white wire will go to the neutral bar in the panel.
Christmas light are causing the 15amp circuit breaker to trip and Circuit Panel is full Can I upgrade to a twin circuit breaker without installing a subpanel?
Your only hope is that someone wired the box not to code and that there are two wires going into the offending breaker. If you can't separate wires you can't distribute the load.
What is the color of hot service wires feeding the electric panel?
they can be any color except for white, gray or green.
How do you disconnect dryer wires outlet for good?
Remove the breaker in main panel and either remove wires from main panel or cap off wires with wirenuts and label for possible future application. Put a breaker filler strip in hole left by missing breaker. At outlet you can just leave outlet or remove from wall and repair hole in wall. If you remove outlet and leave wires in wall it is best to totally remove wire from main panel.
How many wires meter to breaker panel?
4 wires. 2 hot legs, 1 neutral leg, and 1 ground wire.
Found 2 wires on a single circuit breaker why?
If it was two wires under one screw on a single-pole breaker, that would not be proper, and most probably against electrical code.If it was two wires, each under their own screw on a double-pole breaker, then that would be a 220 volt circuit; each wire going to its own "leg" of the breaker panel.
Why would be no power in bedroom?
Blown fuse or circuit breaker. Wires loose on another outlet in that run feeding that bedroom's outlets.
How do you wire a 15 amp 120V breaker in a 240v 30 amp breaker panel?
Look to see if the 30 amp panel is fed with a two wire or a three wire. If it is a two wire then you are out of luck. If the panel is fed with a three wire then the panel should have the neutral terminated in the panel. It is this neutral that you need for 120 volt connections. You didn't state how many panel slots there are in the panel. If you are able install a 15 amp breaker into the panel and connect the wires going to the load. The black wire will go to the breaker and the white wire will go to the neutral bar in the panel.
Do you need a main disconnect on the feeder wires running to a detached garage running from the box in the house?
Yes you do. The detached garage will either be fed with a single circuit or a sub panel. The wire feeding the garage will need to be protected and that is the purpose of the breaker (disconnect). The breaker size will be determined by the size of the wire that is used on this circuit.
How would you go about running an 240 volt outlet?
You will have to buy a 240 V breaker that fits in your electric panel. Look for brand of breaker. It will require two slots in the panel and the panel must support 240 V. You can usually tell by looking at the feed wires from the meter. There will be three thick wires and a ground. Usually Black and Red are the 240. The panel is designed so that every other slot is on a separate leg. There is 120 V between white and either black or red feed wires. A 240 V breaker is wider to bridge two bus bars. There will be two terminals on the breaker. there is 240 V across these terminals. Determine how much current you need and size the wire accordingly. You would need 10/3 + ground for a 30 A current.
Christmas light are causing the 15amp circuit breaker to trip and Circuit Panel is full Can I upgrade to a twin circuit breaker without installing a subpanel?
Your only hope is that someone wired the box not to code and that there are two wires going into the offending breaker. If you can't separate wires you can't distribute the load.
What are the steps in connecting 120V to a 240V 60A air condition panel?
you should have three wires into the panel. two of them go to the double breakers or pull switch and the last is the ground lead. You can pick up 110 vac from one side of either breaker and that ground connection. DO NOT connect to the both breaker wires as that will be 220 vac
What are breakers?
A breaker is a device that is used to connect and disconnect the buss bars of an electrical panel to the feed end of wires that feed an electrical load. The function of a breaker is to protect the wires from an overload by the use of an internal thermal trip, and to protect the load and wires from a short circuit by use of an internal magnetic trip.
How do you hook up a sub panel box for 220 and 110?
You bring in the two phases from the main panel plus a neutral wire and a ground wire. you land the two hot wires on the two hot lugs at the top of the panel and the neutral wire to the neutral buss.and the ground wire to the ground buss strip. when you take power from a single breaker and the neutral, its 110. when you pull power from both hots on a 2 pole breaker with no neutral, its 220 If you dont have a set of lugs at the top, you can feed into a two pole breaker mounted in the panel.Make sure your panel has a two phase lug mount. to check to make sure, with the breaker mounted and no power wires connected and all the breakers except your new 2 pole breaker off. use an ohm meter to make sure that there is no conductivity between the two pole breaker terminals. if there is conductivity, thre panel is not suitable to feed with 220, its a 110 panel, with only one phase back board.
What is the color of hot service wires feeding the electric panel?
they can be any color except for white, gray or green.
