EcoRenovator - View Single Post - Moving solar from Grid to off grid (Sunny Boy GTI)

Xringer · 10-02-10, 10:00 PM

I don't think there is a contactor or SSR (SolidState Relay) in standard 12vdc to 120vac inverters,

and I have not seen anything like that in the 1200w Power Jack GTI.
They might be using MOFETs as off-on relays, but that seems unlikely.

This 1200w PJ GTI board doesn't have any relays anyways.. But with no circuit diagram???

As a matter of fact, I want to add an AC SSR to the AC connection,
to keep it from drawing power when there isn't any sun on the panels.
I would tap some voltage off the PV DC input to switch on the SSR.
These things are night-time power leeches..

10-02-10, 10:00 PM	#6
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	I don't think there is a contactor or SSR (SolidState Relay) in standard 12vdc to 120vac inverters, and I have not seen anything like that in the 1200w Power Jack GTI. They might be using MOFETs as off-on relays, but that seems unlikely. This 1200w PJ GTI board doesn't have any relays anyways.. But with no circuit diagram??? As a matter of fact, I want to add an AC SSR to the AC connection, to keep it from drawing power when there isn't any sun on the panels. I would tap some voltage off the PV DC input to switch on the SSR. These things are night-time power leeches..