Normally the main is on the top but you can install a service panel with the main on the bottom unless local codes prohibit it.
Yes a breaker panel can be located in a hall. In fact a lot of apartments have them in that location just as you come in the main door to the apartment.
Not exactly sure what your question is and you need to make sure you are in compliance with electrical code for your jurisdiction. But, generally speaking you install a large breaker (let's say 100A 2 pole breaker to power the sub panel) just as you would install any other breaker in the presently used (hot) panel, and the proper sized cable then goes from old to new and terminates on the main lugs of the new panel. Ground and neutral are usually isolated from each other in the sub panel but depends on other factors as to location of the sub panel, etc.
A sub-panel is always fed from a main panel. The main panel is situated where the electrical service wiring first enters the main structure on a dwelling plot or building site.A sub-panel can be situated within the same building as the main panel or it can be in a subsidiary building or structure (such as a garage, garden shed or workshop) that is separate from the main building.More informationA sub-panel is another name for a secondary breaker box, just as "the main panel" is another name for "the main breaker-box"."Breaker-box" and/or "panel" are just alternative short names that are used instead of the full name "circuit breaker box".
Yes. Many installations have breaker totals higher that the main breaker of the panel. It is worked on a percentage basis. Not all of the breakers will be on at the same time. In a home, on a 100 amp panel the average load is 50 - 60 amps. The 100 amp main breaker is protecting the 100 amp rated panel board. If the load current goes higher that the panel board is rated at, the main breaker will trip to protect the board.
You can reduce the breaker size because that limits the current that can reach the main panel. There is no safety issue other than the significant danger in an unskilled person changing out a main breaker.
Yes a breaker panel can be located in a hall. In fact a lot of apartments have them in that location just as you come in the main door to the apartment.
Yes, a sub panel does need a main breaker for proper electrical safety and functionality. The main breaker serves as a disconnect switch to shut off power to the sub panel in case of emergencies or maintenance. It also helps prevent overloading the electrical system and protects against electrical hazards.
The maximum amperage capacity of the main breaker in a 100 amp sub panel with a main breaker is 100 amps.
To safely add a breaker to your electrical panel, first turn off the main power switch. Then, carefully remove the panel cover and identify a suitable location for the new breaker. Make sure to use the correct size and type of breaker for your system. Connect the new breaker to the panel following the manufacturer's instructions, ensuring all connections are secure. Finally, replace the panel cover and turn the main power switch back on to test the new breaker.
The recommended size for a main breaker in a residential electrical panel with a 125 amp main breaker is typically 150 amps.
To replace a 200 amp main breaker in a residential electrical panel, follow these steps: Turn off the main power supply to the panel. Remove the panel cover to access the breaker. Disconnect the wires connected to the existing breaker. Unscrew and remove the old breaker. Install the new 200 amp main breaker in the same position. Connect the wires to the new breaker. Secure the breaker in place and replace the panel cover. Turn the main power supply back on and test the new breaker.
No, a subpanel does not necessarily need a main breaker for proper functionality.
To properly add a breaker to a panel, first turn off the main power switch. Remove the panel cover and identify a free slot for the new breaker. Connect the breaker to the panel's bus bar and then connect the circuit wire to the breaker. Secure the breaker in place and replace the panel cover. Finally, turn the main power switch back on.
To install a sub panel with a 100 amp capacity, you will need to follow these steps: Determine the location for the sub panel and ensure it meets all local building codes. Turn off the main power supply to the area where the sub panel will be installed. Install a new circuit breaker in the main panel to supply power to the sub panel. Run the appropriate gauge wiring from the main panel to the sub panel. Connect the wiring to the circuit breaker in the main panel and the corresponding breaker in the sub panel. Ground the sub panel according to local codes. Install the sub panel in the designated location and connect all circuits to the breakers. Turn on the main power supply and test the sub panel to ensure it is functioning properly.
Not exactly sure what your question is and you need to make sure you are in compliance with electrical code for your jurisdiction. But, generally speaking you install a large breaker (let's say 100A 2 pole breaker to power the sub panel) just as you would install any other breaker in the presently used (hot) panel, and the proper sized cable then goes from old to new and terminates on the main lugs of the new panel. Ground and neutral are usually isolated from each other in the sub panel but depends on other factors as to location of the sub panel, etc.
The maximum amperage capacity of a 100 amp main breaker in an electrical panel is 100 amps.
The maximum amperage capacity of a 150 amp main breaker in an electrical panel is 150 amps.