uberlegen Posted January 15, 2020 Share Posted January 15, 2020 Hi Everyone, I'm easing into having backup power for when Eskom feels like having loadshedding. Currently I have a Eaton 2000va UPS running my external Wireless equipment that provide my internet. It runs for about a hour and then cuts out which has been ok but the family wants to be able to watch Netflix for the full duration of Loadshedding . I admit its not the best solution but its worked for our need thus far. So I started gathering a few second hand equipment and so far i have the following: 1x RCT-Axpert 3K inverter charger 4x CSB HRL 12390 batteries Relevant cables for batteries DB box to house fuses and circuit breakers I still need to get the following: 2x 100A fuse and holder Circuit breaker for AC input and Output(not sure if i need this or not) battery DC Isolater switch for Pos(+) and Neg(-) (uncertain what switch i should get) This will not be tied into the circuit of the house so I will not need to fiddle with the current DB. For some it might seem to be a bit elaborate just to have internet/network while loadshedding but the hope is to be able to run some other things as well in the future and also, inverter allows for Solar input so that's also a option to explore. Do I need the circuit breakers? If so what amperage? what isolater switch do i get? Quote Link to comment Share on other sites More sharing options...
Coulomb Posted January 15, 2020 Share Posted January 15, 2020 2 hours ago, uberlegen said: 2x 100A fuse and holder Circuit breaker for AC input and Output(not sure if i need this or not) Yes, you need them. It will work without them, the same as you can still get to your destination in your car if you don't wear a seat belt, but it's a really good idea to have them. Quote battery DC Isolater switch for Pos(+) and Neg(-) (uncertain what switch i should get) You can get a fuse holder that is also an isolator. Quote circuit breakers? If so what amperage? It will be in your inverter's manual. Looks like it will be 32 A for the input breaker, you could use 16 A for the AC-out. Quote Link to comment Share on other sites More sharing options...
uberlegen Posted January 15, 2020 Author Share Posted January 15, 2020 1 hour ago, Coulomb said: Yes, you need them. It will work without them, the same as you can still get to your destination in your car if you don't wear a seat belt, but it's a really good idea to have them. You can get a fuse holder that is also an isolator. It will be in your inverter's manual. Looks like it will be 32 A for the input breaker, you could use 16 A for the AC-out. Thanks I will have a look for the Fuse Holder/Isolater type This is the sticker on the side of the Inverter Quote Link to comment Share on other sites More sharing options...
Jatho Posted January 15, 2020 Share Posted January 15, 2020 If its literally just for routers why don't you run the gear directly off a battery? I do that and can run my internet off grid for probably 3 days, I have 2 x 12V 35AH batteries with a Victron Charger and a DC-DC 12-24V converter for my 24V "core router" my setup..... Mikrotik 960PGS (12V) as main router, POE out powers 2 Mikrotik CAP ceiling mount AP's (12V) for internal wifi, 1 x Mikrotik RBD52G router (12V) for entertainment area, 1 x Mikrotik RBSXT (12V) which I'm using for a PtP wireless link for my cameras, Nokia fibre ONU (12V) supplied by Vodacom. I also have a 12V DC to 5V DC USB adapter to power my Raspberry PI which I use for home automation. The routers each draw around 200ma, I'd guess total draw to be around 1.2A at most. You could build a system like this quite easily for around R2K and it will keep your 12V gear up far longer than a UPS or inverter, rather use the inverter & UPS for 220V devices. Quote Link to comment Share on other sites More sharing options...
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