400 amp feed thru panel from panel A to panel A1 needs a Main CB? | Information by Electrical Professionals for Electrical Professionals
![NEW Eaton PRL1a 400A 120/240V Main Breaker Panel Interior 1PH 3W 400 Amp Single (DW5620-1) - River City Industrial NEW Eaton PRL1a 400A 120/240V Main Breaker Panel Interior 1PH 3W 400 Amp Single (DW5620-1) - River City Industrial](https://cdn11.bigcommerce.com/s-0cnuc/images/stencil/2048x2048/products/31492/700137/20231129_150437__20268.1701298223.jpg?c=2)
NEW Eaton PRL1a 400A 120/240V Main Breaker Panel Interior 1PH 3W 400 Amp Single (DW5620-1) - River City Industrial
![Square D NQ 1 Phase 400A 120/240 Vac (Type 3R, 5, 1) 3 Wire I-Line Breaker Panel | Electrical Power and Control Consultants Square D NQ 1 Phase 400A 120/240 Vac (Type 3R, 5, 1) 3 Wire I-Line Breaker Panel | Electrical Power and Control Consultants](https://media.electricalpowerandcontrol.com/wp-content/uploads/sites/5/2019/02/15122319/IMG_4723.jpeg)
Square D NQ 1 Phase 400A 120/240 Vac (Type 3R, 5, 1) 3 Wire I-Line Breaker Panel | Electrical Power and Control Consultants
![Siemens 400-Amp 30-Spaces 42-Circuit Outdoor Main Breaker Meter Combo Load Center in the Breaker Boxes department at Lowes.com Siemens 400-Amp 30-Spaces 42-Circuit Outdoor Main Breaker Meter Combo Load Center in the Breaker Boxes department at Lowes.com](https://mobileimages.lowes.com/productimages/e6cb5710-7cdc-4e11-b1f9-745f85737f62/05319655.jpg)
Siemens 400-Amp 30-Spaces 42-Circuit Outdoor Main Breaker Meter Combo Load Center in the Breaker Boxes department at Lowes.com
![Should I be planning towards upgrading our electrical service with a 400 amp panel? : r/AskElectricians Should I be planning towards upgrading our electrical service with a 400 amp panel? : r/AskElectricians](https://preview.redd.it/should-i-be-planning-towards-upgrading-our-electrical-v0-eufvxlzi5w9c1.jpg?width=640&crop=smart&auto=webp&s=fa7f05605f4c29d1f485e7e0fb672584b0a81177)
Should I be planning towards upgrading our electrical service with a 400 amp panel? : r/AskElectricians
![Quick question what is the maximum temperature for the main trip breaker on a second 400 amp panel : r/AskElectricians Quick question what is the maximum temperature for the main trip breaker on a second 400 amp panel : r/AskElectricians](https://i.redd.it/om8fx5peo1eb1.jpg)
Quick question what is the maximum temperature for the main trip breaker on a second 400 amp panel : r/AskElectricians
![200 amp service install from main 400 amp panel. I want to run 200 amp from the left side where we have a well pump already installed to my house I am 200 amp service install from main 400 amp panel. I want to run 200 amp from the left side where we have a well pump already installed to my house I am](https://preview.redd.it/48w1p9l4vx591.jpg?width=640&crop=smart&auto=webp&s=b762846bc1a5a3b9dbe5024dc969ec4b0e16ba79)
200 amp service install from main 400 amp panel. I want to run 200 amp from the left side where we have a well pump already installed to my house I am
![NEW Eaton PRL1a 400A 120/240V Main Breaker Panel Interior 1PH 3W 400 Amp Single (DW5620-1) - River City Industrial NEW Eaton PRL1a 400A 120/240V Main Breaker Panel Interior 1PH 3W 400 Amp Single (DW5620-1) - River City Industrial](https://cdn11.bigcommerce.com/s-0cnuc/images/stencil/2048x2048/products/31492/697460/dw5620%20(3)__90787.1701298218.jpg?c=2)
NEW Eaton PRL1a 400A 120/240V Main Breaker Panel Interior 1PH 3W 400 Amp Single (DW5620-1) - River City Industrial
![Should I be planning towards upgrading our electrical service with a 400 amp panel? : r/AskElectricians Should I be planning towards upgrading our electrical service with a 400 amp panel? : r/AskElectricians](https://preview.redd.it/should-i-be-planning-towards-upgrading-our-electrical-v0-lygpjlzi5w9c1.jpg?width=640&crop=smart&auto=webp&s=6a8861630ba54dbab716b5f62702cbf1ccc88538)