Yes, you can always use undersized meter base shutoff's, but never use oversized shutoffs.
The wire size in a meter stack is governed by the size of the first over current device.
Yes, but you may have to upgrade the size of the service entrance wire and the meter base.
I can think of exactly one justification for 400 amps residential service: a tankless electric water heater, which pulls 150 amps all by itself. In general, if you want 400a service in a home you have to justify it to the electric company--they want to be sure you aren't planning to take up smelting aluminum as your new hobby.If you're going that way, most guys install two 200a load centers with a Siemens 400a meter base. The Siemens meter base has a 400a main breaker in it.
1 cm = 1/100 meter 150 cm = 150/100= 1.5 meter 1.5 meter is in 150 centimeters
150 meters = 5905.512"
No, it is not.
150 millimeters is 0.15 meters.
Answer: 150 m = 492.125 feet.
150
150 centimeters = 1.5 meters There are 100 centimeters to the meter.
150 meter
0.15 meter