Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 20,044
I don't feel like I have enough low-amp devices to justify an entire fuse block. And I need more disconnects, sooooooo...
Surface-mount breakers it is! A 30-amp on each SCC and a 70-amp on the charger. Additional plain battery disconnect switches on the battery (between fuse and busbar) and the rooftop solar panel line coming in to the MPPT SCC.
In your voltage range and for those amperages, Square-D QO breakers have suitable DC rating.
Although, with a steel box it might be more weight than you want.
They have boxes with slots for 2 single-pole breakers, 6, 8, 12, maybe other sizes in between.
DIN rail breakers are another option. I have some in a a couple PV combiner boxs for DC, others in parts of my AC system.
Once you mount a DIN rail, it is a convenient place for breakers, fuse holders, relays, connector blocks, and more.