Let's take the diagram we used previously and update it with this interesting upgrade proposed by Andrea. Let's try to get to the bottom of the problem encountered by some users during the exchange phase regarding the intervention of the life saver. I think I have identified the origin of this problem, let's try to find a solution together. I invite the many users who are using these #contactors to describe their system (magnetic thermal and differential switches upstream and downstream of the same) so we can give useful indications to those unfortunate users who have this problem. We will compare the absorption of an #ats as well as its safety problems in our #photovoltaic #do-it-yourself system. Finally, we will talk about the #two-phase yes or no issue, of the neutral to earth. --- One step at a time, trying not to take anything for granted, we will create my photovoltaic system consisting of: 550W photovoltaic panels (5.5kW nominal) 6kW toroidal inverter approximately 14kW battery Subscribe to the channel to stay connected and not miss the next videos in this series. Thank you, Donatello ===== my diagrams always updated (with last update date) ===== https://drive.google.com/drive/folder... ===== the products used in this video ===== Schneider TeSys LC1D38 38A 3P 230Vac Contactor Amazon: https://amzn.to/3ZgN6Rq AliExpress: https://it.aliexpress.com/item/100500... Schneider TeSys LC1D 40A 4P 230Vac Contactor Amazon: https://amzn.to/48gAduD Schneider LAD9V2 Mechanical Interlock Amazon: https://amzn.to/3RhUQRl AliExpress: https://it.aliexpress.com/item/100500... Relay 230Vac 8A Finder 40.52.8.250.0000 on Amazon: https://amzn.to/3rfbkip Finder 95.75 Relay Socket on Amazon: https://amzn.to/48hs09w Spring Quick Terminals on Amazon: https://amzn.to/469c4Vg CHINT Circuit Breaker NXBLE-63Y 16A 10mA (RCBO) Amazon: https://amzn.to/49amCVb AliExpress: https://it.aliexpress.com/item/100500... CHINT ND9 Led Din Red-Green AliExpress: https://www.aliexpress.com/item/40002... Amazon: https://amzn.to/4cru4xT EARU Circuit Breaker Type A 300mA 32A on AliExpress: https://www.aliexpress.com/item/10050... Fuse holder 5x20 with 10A fuse AliExpress: https://it.aliexpress.com/item/100500... Multimeter KAIWEETS HT206D Digital Clamp Meter 600V Amazon: https://amzn.to/3GzrN5h TESMEN TM-510 Automatic Digital Multimeter with NCV Function (with DISCOUNT) Amazon: https://www.amazon.it/dp/B0BLZ7GN2X?m... ATS Switch TOMZ (TOQ5-125/2) Generator Amazon: https://amzn.to/44MGknP AliExpress: https://it.aliexpress.com/item/400094... ATS Switch YRO (YRQ2PC-125PV) Photovoltaic Amazon: https://amzn.to/3riEwVG AliExpress: https://it.aliexpress.com/item/100500... ===== links to colleagues' channels ===== ANDREA GANDALF TV / Andrea Gandini / @andrea.gandalf ===== background music ===== Mogo Mogo / Stream of Melodies / Freesound Music (no copyright music): The Thought of You Sunset by Lukrembo Members Only You know Her Face Book Bag Bet On It Do It Like Benson Dexters Decks By the Fireplace