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What is the largest sub panel you can install off from a 60 amp main panel fed by 100 amp service?

If what you state in this question is accurate this is an illegal installation. A 100 amp service can not have any equipment connected to it less that that of the service size. The 60 amp main panel must be a 100 amp panel to be a legal installation.


Can you use a 40 amp breaker to feed a sub panel?

Yes, you can use a 40 amp breaker to feed a sub panel. The wire from the 40 amp breaker must be #8 or larger. If you intend to use the full 40 amps a larger conductor must be used. Conductors can only be loaded to 80% capacity in continuous load conditions. A #8 wire is rated at 45 amps x 80% = 36 amps. The suggested size would be a #6 rated at 65 amps x 80% = 52 amps.


What would happen if a 200 amp breaker is used in a 100 amp sub panel?

There are two things to think about here. First of all a 200 amp breaker will not physically fit into a 100 amp panel. This is so designed because the panel buss is not designed to conduct 200 amps before the current is cut off. A 100 amp rating on the panel is the maximum amount of current that the manufacturer states, that can be handled safely. Second if the 200 amp breaker is in the main panel then everything downstream from that breaker has to be rated for 200 amp conductivity. The wire size will have to be 3/0 from the breaker to the first over current device in the sub panel which will be the sub panel's main breaker. The sub panel can not be a load center but will have to be a combination panel. I doubt that the 100 amp sub panel's main breaker lugs would be large enough to connect the 3/0 cable.


Can you had a 20 amp breaker on your 70 amp sub-panel that has already 70 amp total on it that consist of one 50 and two 15 amp breakers and the panel has 4 available spaces out of 8?

SeeIf_a_100A_breaker_panel_has_five_15A_breakers_and_four_20A_breakers_could_this_overload_the_panel


What size wire is needed to feed a 125 amp sub panel from a 200 amp panel less than 200 wire feet away?

For a 125 amp sub panel located less than 200 feet away from a 200 amp panel, you would typically use a 2 AWG copper wire or 1/0 AWG aluminum wire to safely carry the current load. It's important to follow local electrical codes and regulations when selecting the wire size.

Related Questions

What size breaker do you use for a 100 amp sub panel?

A 100-A sub-panel would be fed from a 100-A breaker.


What is the maximum amperage capacity of a 40 amp sub panel?

The maximum amperage capacity of a 40 amp sub panel is 40 amps.


What is the largest sub panel you can install off from a 60 amp main panel fed by 100 amp service?

If what you state in this question is accurate this is an illegal installation. A 100 amp service can not have any equipment connected to it less that that of the service size. The 60 amp main panel must be a 100 amp panel to be a legal installation.


How do you wire a garage sub panel box from a 100 amp breaker in the house main panel?

you propaly can't sub panel from 100 amp panel. Just not enough amperage to be worth while. i had to up grade t a 200 amp main first and then I was able to take a 60 sub panel from that.


Can you use a 40 amp breaker to feed a sub panel?

Yes, you can use a 40 amp breaker to feed a sub panel. The wire from the 40 amp breaker must be #8 or larger. If you intend to use the full 40 amps a larger conductor must be used. Conductors can only be loaded to 80% capacity in continuous load conditions. A #8 wire is rated at 45 amps x 80% = 36 amps. The suggested size would be a #6 rated at 65 amps x 80% = 52 amps.


How to wire a 100 amp sub panel from a 200 amp main panel?

To wire a 100 amp sub panel from a 200 amp main panel, you will need to install a double-pole breaker in the main panel to supply power to the sub panel. Run appropriate gauge wires from the main panel to the sub panel, ensuring they are properly sized for the amperage. Connect the wires to the corresponding terminals in both panels, following all local electrical codes and regulations. It is recommended to consult a licensed electrician for proper installation.


How to install a 100 amp sub panel in a residential electrical system?

To install a 100 amp sub panel in a residential electrical system, follow these steps: Turn off the main power to the house. Choose a location for the sub panel near the main panel. Install a new circuit breaker in the main panel for the sub panel. Run wires from the main panel to the sub panel location. Connect the wires to the sub panel and main panel. Install the sub panel onto the wall. Connect the circuits from the main panel to the sub panel. Turn on the main power and test the sub panel.


What information can I find in the 100 amp sub panel wire size chart?

The 100 amp sub panel wire size chart provides information on the recommended wire sizes for different distances and types of wiring to safely and efficiently supply power to a 100 amp sub panel.


What are the necessary steps for installing a 30 amp sub panel in a residential electrical system?

To install a 30 amp sub panel in a residential electrical system, you need to first turn off the main power, install the sub panel near the main panel, connect the sub panel to the main panel with appropriate wiring, install the circuit breakers in the sub panel, and then connect the circuits to the sub panel. Finally, turn the power back on and test the sub panel to ensure it is working correctly.


What is the recommended wire size for a 60 amp sub panel installation?

For a 60 amp sub panel installation, the recommended wire size is typically 6-gauge copper wire.


What would happen if a 200 amp breaker is used in a 100 amp sub panel?

There are two things to think about here. First of all a 200 amp breaker will not physically fit into a 100 amp panel. This is so designed because the panel buss is not designed to conduct 200 amps before the current is cut off. A 100 amp rating on the panel is the maximum amount of current that the manufacturer states, that can be handled safely. Second if the 200 amp breaker is in the main panel then everything downstream from that breaker has to be rated for 200 amp conductivity. The wire size will have to be 3/0 from the breaker to the first over current device in the sub panel which will be the sub panel's main breaker. The sub panel can not be a load center but will have to be a combination panel. I doubt that the 100 amp sub panel's main breaker lugs would be large enough to connect the 3/0 cable.


What is the recommended amperage for a sub panel in a detached garage, specifically for a 60 amp capacity?

The recommended amperage for a sub panel in a detached garage with a 60 amp capacity is typically 60 amps.