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the right shunt trip?
#21
For me, its not about drawing power from battery (I agree with comments on this) but its about isolating the battery 100% from the system while I work on the system.   This is a personal choice.   When I put the shunt-trip to OFF, I like to *know* that 'all electrical flow' from the battery is disconnected so I can work on the system under that assumption - and Batrium is not needed at that point.    If the system goes off via a critical even - again I don't need Batrium to be live as I have the recorded metrics leading up to the shut-off that I can consult.

Having said the above, I was recently reminded that there is a 2nd power source besides the battery - e.g. PV power.   I was upgrading the wiring and disconnected the battery as the 1st step and was momentarily shocked to see Batrium (and other draws) continuing to run...   till I  (duh!!) remembered that PV power was active.   That's why there are breakers on PV input as well that must be turned off to work on the central control box.
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#22
But the shunt trip should trip PV Power to The battery.
But yes. Breakers for PV should have their own box. I also have separator breakers for each inverter and or Charger.

Makes it very easy to för maintenance on the part needed.

Also note that you have a separata breaker to batrium so you first trip Main breaker and the. The One for batrium. Thats also how batrium have it in their schematics. (After i told Them Smile )
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