A Forum run by Enthusiasts of MidNite Solar

Inverters => The Rosie => Topic started by: BlackwaterPark on November 06, 2025, 03:10:13 PM

Title: Rosie breaker box question
Post by: BlackwaterPark on November 06, 2025, 03:10:13 PM
hey, so looking at the diagrams in the manual for the Rosie companion breaker box, i'm seeing that those grey contacts in the lower right say PV+ and PV- in one section, and then SPD in another section. I was on the phone with James, and when I mentioned the my HB120 was hooked up directly to the DC bus bars, he seemed surprised that I was running it that way, rather than through the Rosie, if I was understanding him correctly. Can't you actually run the HB through the Rosie like that, or did I hear this incorrectly?  The manual is a little confusing and doesn't mention anything about doing this.. at least from what I can see.
Title: Re: Rosie breaker box question
Post by: Brucey on November 06, 2025, 03:18:00 PM
Quote from: BlackwaterPark on Today at 03:10:13 PMhey, so looking at the diagrams in the manual for the Rosie companion breaker box, i'm seeing that those grey contacts in the lower right say PV+ and PV- in one section, and then SPD in another section. I was on the phone with James, and when I mentioned the my HB120 was hooked up directly to the DC bus bars, he seemed surprised that I was running it that way, rather than through the Rosie, if I was understanding him correctly. Can't you actually run the HB through the Rosie like that, or did I hear this incorrectly?  The manual is a little confusing and doesn't mention anything about doing this.. at least from what I can see.
You could either use the rosie breaker box to hold your pv and battery breaker, or handle that outside the Rosie breaker box and connect direct to bus bars.
Title: Re: Rosie breaker box question
Post by: BlackwaterPark on November 06, 2025, 03:20:03 PM
Quote from: Brucey on Today at 03:18:00 PM
Quote from: BlackwaterPark on Today at 03:10:13 PMhey, so looking at the diagrams in the manual for the Rosie companion breaker box, i'm seeing that those grey contacts in the lower right say PV+ and PV- in one section, and then SPD in another section. I was on the phone with James, and when I mentioned the my HB120 was hooked up directly to the DC bus bars, he seemed surprised that I was running it that way, rather than through the Rosie, if I was understanding him correctly. Can't you actually run the HB through the Rosie like that, or did I hear this incorrectly?  The manual is a little confusing and doesn't mention anything about doing this.. at least from what I can see.
You could either use the rosie breaker box to hold your pv and battery breaker, or handle that outside the Rosie breaker box and connect direct to bus bars.

Aside from freeing up Little space on my bus bars, is there any advantage to running it through the Rosie, to your knowledge?
Title: Re: Rosie breaker box question
Post by: Brucey on November 06, 2025, 04:19:12 PM
Quote from: BlackwaterPark on Today at 03:20:03 PM
Quote from: Brucey on Today at 03:18:00 PM
Quote from: BlackwaterPark on Today at 03:10:13 PMhey, so looking at the diagrams in the manual for the Rosie companion breaker box, i'm seeing that those grey contacts in the lower right say PV+ and PV- in one section, and then SPD in another section. I was on the phone with James, and when I mentioned the my HB120 was hooked up directly to the DC bus bars, he seemed surprised that I was running it that way, rather than through the Rosie, if I was understanding him correctly. Can't you actually run the HB through the Rosie like that, or did I hear this incorrectly?  The manual is a little confusing and doesn't mention anything about doing this.. at least from what I can see.
You could either use the rosie breaker box to hold your pv and battery breaker, or handle that outside the Rosie breaker box and connect direct to bus bars.

Aside from freeing up Little space on my bus bars, is there any advantage to running it through the Rosie, to your knowledge?

No advantage I know of. Personally I have a hb 90 with its matching breaker box, that has the shunt trip pv breaker that will trip if battery voltage hits 68V (protection in case of scc failure)