Mppt 80 amp all in one

Dunndeal

SparksMayFly
Joined
Jul 9, 2020
Messages
52
Location
Dallas Texas
Yes you do need BMS, the BMS will monitor the status of each cell and will go into shutdown if it detects fault, ALL-IN-ONE SCC cannot do anything if one/or more of the cell over charged or over discharged.
BTW, you do not ALL-IN-ONE SCC, the all in will have SCC/INVERTER.
Again great advice. I’ll be going to 2s2p panels and direct wiring from the batteries to the inverter.
 

Dunndeal

SparksMayFly
Joined
Jul 9, 2020
Messages
52
Location
Dallas Texas
What is the MAX PV input Voltage of that SCC?
Do you still get the warning if the PV panels are not connected to the SCC?
BTW, you should not connect the inverter or any device that has high inrush current to the switched DC load terminals, the inverter DC input should be connected directly to the batteries, the switched DC load output can be damaged by high inrush current.
Are those breakers, especially on the inverter, $15 ~ 20 breakerS from EBAY or AMAZON?
What kind of circuit breakers are to referring to. What would you suggest
 

jbird526

Solar Enthusiast
Joined
Feb 16, 2021
Messages
186
Location
Maryland
What kind of circuit breakers are to referring to. What would you suggest
Think @Bud Martin was asking if the breaker is one of these? Breaker

I would say if you absolutely want to use a breaker at least use a Blue Sea, equivalent or higher. Blue Sea

I'd say ditch the breaker all together and instead use an ANL fuse instead, but some like to use the breaker as a switch also.

Can't see what fuse you are using near the battery bank but make that a Class T if it is not.
 

Bud Martin

Photon Sorcerer
Joined
Aug 27, 2020
Messages
3,490
What kind of circuit breakers are to referring to. What would you suggest
The one with Yellow button & Lever, and the one with red button and lever, they are basically junk.
Go with the real Blue Sea/Bussman stuff or use fuse as suggested.
BTW, that 3000W inverter has high inrush current when first connected to power source, so you do not want to disconnect/connect to power source all the time unless you have pre-charge resistor in place, you should just use the power on/off switch on the inverter to turn inverter on and off.
You can search the threads about pre charge resistor.
 
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