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T class fuse 400 amp

The Growatt had no problems running the 2.5 ton A/C, 6 gallon craftsman shopvac, air compressor, plus fridge, chest freezer, led lights, and whatever else was ON in the background. I was quite impressed with it’s performance. I had no appliances left to plug in for the overload test. It powered...

No power is sent to the grid at any time. Also, grid power is cut off at the main 100amp breaker before the inverter power to the main panel is switched on.

My EG4’s and Growatt 12k inverter communicate via the BMS port, LI setting. Not sure if EG4’s are produced by growatt or not.

How would connecting to main panel blow stuff up? Wouldn’t the breaker prevent this sort of situation?

My setup: 12k Growatt under load. NG bonded in the main panel. No subpanels. H1 - current H2 - current Neutral - current Ground - no current

Exactly the setup.

Not same battery. Positive from 1st and negative from 4th(furthest).

The batteries are connected to bus bars using 4 foot, 2/0 awg cables, same for both neg and pos. Currently in this configuration: Oooo oooO

Thank you for the clear explanation how it all works!

Hello Solar Forum, I have a Growatt 12k with four EG4 batteries in parallel, 48volt system. Same cable lengths and wire gauge from battery to busbars. Equal state of charge on all batteries prior to installation. After some testing/discharging grid power was connected to recharge the batteries...

Thanks!

Hi all, I need some help with choosing the breakers and dc cut off switch and bus bars. So far I’ve purchased the Growatt 12k inverter, 4 EG4 48volt 100ah batteries. 400 amp t class fuse. 15 amp inline mc4 fuse. 1/0 awg wire. 2 awg wire and PV wire. 2awg wire will run from the batteries to...

Few days ago. Wont let me post link. But google walmart t class fuse...

Online Walmart $78- fuse block, 400 amp fuse and cover. Free shipping. Arrived in two days. I believe they also sell just fuses.

Disregard, found better options. Website description says this is a welding cable rated for 125 Celsius. Comes with 3 feet of heat wrap and few lugs. Would this work...

Any idea what battery cable size I should order? 5 foot distance at most from battery to the inverter.

Just info: Just received some answers from buyers on Amazon. That linked fuse also works on 48 volt. And up to 160vdc, same as the other two.

I really appreciate all the help guys. I'll be skipping Amazon's 12/24v. Turns out Walmart.com and invertersupply.com sell the exact same model as Amazon. All the same price. But slightly different parameters on exact same models numbers. But Walmart's product page claims up to 160VDC. Is this...

So I'm assuming the Amazon link I posted is a no go?

Are class T fuses rated for exact/specific voltage, because this one on Amazon is rated at 400A but the product description only mentions 12 and 24 volts no information whether it would work on a 48 volt system. Can this one be used...

Sorry if I'm repeating myself. But with these (4) EG4's in parallel, is a 300 amp fuse appropriate in this setup for the possible 12k draw? Edit: class T

This really makes things easy to understand. I found these EG4 48V 100AH lifepower4 battery 48V/100AH 5.12kwh from signaturesolar. Would post a link but not sure if allowed. And just to be certain, 4 of these EG4's connected in parallel would allow for 12k draw or close to it? Edit: Just...

Again thanks everyone for the advice. Just spoke to Amazon and they've accepted the battery return. Any suggestions on which 48v server rack batteries to buy? or any battery that would be capable of continuous discharge rate of at least 11-10kw?

Thank you for the detailed post. I agree 100% with the battery assessment. I plan on purchasing another (4) batteries as these are 300Ah and per the manual Growatt requires 400Ah. Would using 300Ah battery bank damage the inverter or battery bank possibly? Is there a way to wire up 6 or 8...

Just ordered all the above except T class fuse. Between 200 and 300 amp, would one be better than the other? What should the battery jumper cable gauge be? Thanks

I need help with solar setup. So far, I have purchased (4) 300ah 12volt batteries, a shunt, a Growatt 12k inverter from signature solar, and (25) 430W panels. I’m missing breakers, fuses and wires/cables and have no idea what sizes would be required if the inverter was to be utilized to close to...