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Hello,
we are just in final setup and together with my electrician I'm wondering about DC 
fusing and cables.
See picture attached.
- Are 300 A and 100 A ok?
- Are wires diameters fine?
- There are no additional fuses necessary, e.g. for individual batteries?
Thanks in advance for some feedback
David
The Multi 2 cabling and fusing can be checked here. The size of DC cable used is based on length.
The 250/70 here.
On the Pylons if you are using their kits will be good in pairs like that.
An example of 4x 3000C batteries in a kitchen cupboard and a thermal image taken an hour or so into an ESS scheduled overnight charge. Please don't be taken by the colour mapping (thermal cameras like to make things look exciting!) the temp readings are the important bit - Pylontech 25mm cables @31C (feel a bit warm to touch).
Fuse size is based on protecting the wire. Once you know the wire size then size the fuse accordingly.
This is a great calculator for both:
