[DanielDent]

Circuit breakers aren't just there for the amusement value of watching a clustered system go into split-brain mode...

I.e. you would also want to be sure that your wiring was rated for 100% utilization, and that other circuit-breaker-like functions exist.

Fire is an actual thing, and figuring out the best way to recharge a halon system isn't exactly what you want to be doing.

[late2part]

Yes. That's why they hardwire and use a breaker rated at 100%. In most jurisdiction, code requires breaker at 80% if a plug/receptacle is used. If you are hardwired you can use 100% of your capacity before tripping the breaker. You have incorrectly assumed that I suggested that you ignore breakers.

When you hardwire the circuit the electrical code allows you to use a 100% breaker.

[DanielDent]

Thank you for adding this detail... what you said makes WAY more sense to me now.

[Dylan16807]

What exactly gets hardwired to what? This is surprisingly hard to search for details on.

[late2part]

Instead of your plug of your PDU going into a receptacle, the wires that would go into the plug are hardwired to a panel circuit breaker.

This is less common in DCs historically but more and more as folks do 208v 3phase 100A circuits.