Power injection: distribution (i.e. PCB) board vs. "simple" fuse box ?

[zaicik]

Hello,

I can's seem to find what PCB based distribution boards bring over basic, often rugged, fuse boxes

By "PCB-based" I mean: https://www.hansonelectronics.com.au/product/power4-power-distribution/
and for "basic fuse box": https://www.aliexpress.com/item/1005007612424166.html

Can anyone help clarify if one is the right choice over the other, or describe ideal scenarios for each ?


My best guess so far is... since I often see the "PCB" distros' specs go "8 x 5amp output" but only "20amp input" or "30 amp input", I figure maybe the input limit works to protect the "upstream" cables, if they're not rated beyond 20 or 30 amp ?

Thanks in advance !

 

[Skymaster]

I can's seem to find what PCB based distribution boards bring over basic, often rugged, fuse boxes

PCB versions give a a more familiar form factor (PCB & screw down terminals)
Rugged versions usually have higher current capabilities.

Other than that, not really any difference. They just throw a fuse inline.

I figure maybe the input limit works to protect the "upstream" cables, if they're not rated beyond 20 or 30 amp ?

There is no input limiting on the board, it's the maximum current that the Power input can take before it melts. Technically you would still need an upstream fuse to protect against this situation.