Fuse size thoughts

[Tyler702]

Project: milk crate build for camping.
12V/4x200Ah cells w OKS 4S 120A bms
1200/2400W psw inverter (giandel)
4guage wires throughout. Except bms of course.
I'm considering an ANL fuse kit @150A? I don't forsee ever drawing over 1200W while boondocking.
Would this suffice?
Thx!

 

[FilterGuy]

Project: milk crate build for camping.
12V/4x200Ah cells w OKS 4S 120A bms
1200/2400W psw inverter (giandel)
4guage wires throughout. Except bms of course.
I'm considering an ANL fuse kit @150A? I don't forsee ever drawing over 1200W while boondocking.
Would this suffice?
Thx!

If you are fusing at 150Amp, the wires need to be able to handle at least 150A. That would mean you need at least 1 AWG Wire.

In general, we recommend Class T fuses with their high AIC rating for the main battery fuse. ANL fuses are the next best but don't have near the same AIC rating.

DC Fuse and breaker Sizing and Placement

To get the paper, click on the orange button at the top of the page The attached presentation gives the fundamentals for picking fuse/breaker sizes and describes where in the circuit they should be placed. You can download the presentation by...

diysolarforum.com

 

[Tyler702]

If you are fusing at 150Amp, the wires need to be able to handle at least 150A. That would mean you need at least 1 AWG Wire.

In general, we recommend Class T fuses with their high AIC rating for the main battery fuse. ANL fuses are the next best but don't have near the same AIC rating.

https://diysolarforum.com/resources/dc-fuse-and-breaker-sizing-and-placement.37/[/

http://Awesome. I overlooked your resource section. Thx