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Panels are different. You can get 150 amp panels with 20 to 30 breaker spaces.
The limit is stated by the manufacturer on a label attached to the panel. Hopefully you an find the label, sometimes it is on the inside of the cover
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Do you need to change the wire size going from 100 amp service to 150 amp service?
Yes, the wire size has to be increased. The existing 100 amp service will now probably have a #3 conductor with an insulation factor of 75 or 90 degrees C which is rated for 100 and 105 amps respectively. Increasing to a 150 amp service will use a #1/0 wire size. If you are thinking of an upgrade, skip the 150 amp service and go to a 200 amp panel. New homes are installing 200 amp 42 circuit panels. The extra cost is only reflected in the materials as the labour costs will be the same regardless whether a 150 amp or a 200 amp panel is installed. The wire size for a 200 amp panel is #3/0. With an insulation factor of 75 or 90 degrees C the rating is 200 or 210 amps respectively.
What size Aluminum wire is used for ground in breaker box?
For a 100 Amp breaker panel it would be 2 AWG. For 150 Amps it would require 2/0 (2 ought) aluminum wire.
What is largest wire you can use in 150 amp breaker panel?
A 1/0 copper conductor with an insulation factor of 75 and 90 degrees C is rated at 150 and 155 amps respectively. Any size larger that 1/0 can be used but no conductor smaller that 1/0 will be approved for connection.
What size aluminum wire for 100 amps undergroundservice 60 feet from meter?
A 3/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 150 amps for 150 feet on a 240 volt system. This size will allow the conductor to be loaded to 120 amps. 150 x 80% = 120 Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 150 amps then you would need to use a wire with a rating of 190 amps. 190 x 80% = 152 amps A 4/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 190 amps for 150 feet on a 240 volt system.
How many watts will a 150 watt High Pressure sodium light with a capacitor draw?
It will draw 150 watts. The capacitor is there only to increase the voltage enough to "excite" the free electrons in the gas to ignite.
How many circuits are on a 150 amp panel?
As many as needed; panel capacities are different from each other in amps and space. there should be a sticker on the door of the panel that tells of how many breakers can be installed in that panel. regarding the amps, a load calculation can be made to determine the full load used on such a panel.
How do you combine two or more circuits to achieve greater amperage ie. combine two 20 amp circuits to achieve a 40 amp circuit?
If you mean "combining circuits" as in connecting two or more circuits in parallel, this is only allowed by the National Electrical Code when the wires are at least size 1/0 (about 150 amps) You are not allowed to parallel conductors smaller than 1/0 If you meant something else, you need to clarify the question
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