For a distribution panel rated at 400 amps parallel runs of 3/0 conductors will do the job.
Depends on the size of the sub-panel in that garage. If you are installing a 60 amp sub-panel 400 feet away from the main service panel then use AWG # 4.
The type would be a three phase panelboard. If you are carrying the wye neutral into the service, then it would be a three phase four wire distribution panelboard. Regardless of the style used, it would have to have a minimum 400 amp bus.
You need to look at the regulations that apply in your country. If in doubt, use a neutral wire of the same size as the live wire or wires.
Use AWG # 4 copper and you will have a 2.6% voltage drop which is acceptible.
1/0 <<>> This is a voltage drop question. A voltage and whether it is a single or three phase system must be provided to give an answer.
A 400 amp main distribution panel for a 3-phase electrical system typically includes three hot wires, one neutral wire, and one ground wire. It is designed to handle a maximum current of 400 amps and is used to distribute power to various circuits in a building. The panel may also have circuit breakers, surge protection, and metering capabilities to monitor electricity usage.
Depends on the size of the sub-panel in that garage. If you are installing a 60 amp sub-panel 400 feet away from the main service panel then use AWG # 4.
In a 400 amp wire size chart, you can find information about the appropriate wire size to use for a 400 amp electrical circuit. This includes details such as the gauge of the wire, the maximum current capacity it can handle, and the type of insulation required for safety and efficiency.
The type would be a three phase panelboard. If you are carrying the wye neutral into the service, then it would be a three phase four wire distribution panelboard. Regardless of the style used, it would have to have a minimum 400 amp bus.
The specifications for a 400 amp main distribution panel typically include a maximum current capacity of 400 amps, suitable for distributing power to various circuits in a building. It may also have features such as multiple circuit breakers, bus bars for connecting wires, and possibly surge protection capabilities.
In a 400 amp service wire size chart, you can find information on the recommended wire sizes for conducting electricity in a system with a 400 amp capacity. This chart will provide details on the appropriate wire gauge, material, and insulation type needed to safely and efficiently handle the electrical load in a 400 amp service setup.
You need to look at the regulations that apply in your country. If in doubt, use a neutral wire of the same size as the live wire or wires.
The size of wire for service entrance conductors for a 400 amp 3 phase service could be 500 MCM copper. This is very large size wire and difficult to bend and shape, to connect to terminals in the main disconnect and distribution panel. This problem is solved by using parallel conductors or on higher ampacities triple conductors. Using parallel conductors the wire size would be three ought (3/0) copper.
Use AWG # 4 copper and you will have a 2.6% voltage drop which is acceptible.
It depends on the length of the run
The wire size used in a service entrance distribution panel is governed by the size of the services over current device. The larger the service, the larger the fault current could be, the larger the ground wire to carry the fault current to ground. If the largest service conductor carries 100 amps use a #8, 200 amps - #6, 400 amps - #3, 600 amps - #1, 800 amps - 1/0 and over 800 amps - 2/0 for the ground wire. <<>> Golden Valley Electric Assoc. in Alaska requires #4AWG copper wire for a ground from the breaker box to earth ground rod. The same goes from the service entrance panel on the pole.
A 400 amp Siemens panel typically includes features such as a main breaker, multiple circuit breakers, and space for additional circuits. It is designed to handle high electrical loads and is suitable for larger residential or commercial applications. The panel is built to meet safety standards and provide reliable power distribution.