400 amp feed thru panel from panel A to panel A1 needs a Main CB? | Information by Electrical Professionals for Electrical Professionals
![electrical - What wire is needed for a 400 Amp service between the mast and the meter? - Home Improvement Stack Exchange electrical - What wire is needed for a 400 Amp service between the mast and the meter? - Home Improvement Stack Exchange](https://i.stack.imgur.com/GxNr2.jpg)
electrical - What wire is needed for a 400 Amp service between the mast and the meter? - Home Improvement Stack Exchange
Advice for a typical 400 amp residential service | Information by Electrical Professionals for Electrical Professionals
![electrical - Do I really need a 1/0 conductor to bond my copper water pipes? - Home Improvement Stack Exchange electrical - Do I really need a 1/0 conductor to bond my copper water pipes? - Home Improvement Stack Exchange](https://i.stack.imgur.com/ynO3r.png)
electrical - Do I really need a 1/0 conductor to bond my copper water pipes? - Home Improvement Stack Exchange
![Siemens 400 Amp 8-Space 16-Circuit Combination Meter Socket Load Center MC0816B1400RLTM - The Home Depot Siemens 400 Amp 8-Space 16-Circuit Combination Meter Socket Load Center MC0816B1400RLTM - The Home Depot](https://images.thdstatic.com/productImages/b9c6a5b1-672a-477a-8bf7-72b8129e40b3/svn/siemens-meter-main-combos-mc0816b1400rltm-64_1000.jpg)