Finally I took some time to do a test on all the tip circuit breakers I had and some new ones I ordered to test so that those that want to use type 5 for extra level of protection or those that just have an inverter without remote ON/OFF or difficult to implement and want to use a shunt trip circuit breaker to cut off the inverter in case of low voltage then they will use the type 2 to trip the breaker and will need to add a capacitor recharge circuit that needs to be enabled before reconnecting the breaker manually in case it ever happens to be tripped.
EXT IOx can of course not drive the trip coil directly so you will need a normally close solid state relay like the CPC1705 (tho based on spec 3.25A is max current and also peak) so maybe not good for many of this unless you parallel two of them. Next option I see maybe easier to use for some as it requires no soldering is the DC60S5 this has 5A rating but 10A peak for 10ms so it will work with all trip coils in this test.
Below a few photos of the tested breakers.
This large SafeSave breakers are both rated 315A per contact and they have 3 contacts is just that the one on the left is the S model and the one on the right is the H model that is taller and has higher max interrupt current capabilities. But this things are expensive for most people and there are many brands that have similar breakers.
The Langir is a great breaker but the trip shunt I found is not matching this breaker not sure witch one if there is one will match the Langir. May need to ask the manufacturer. This will not fit mechanically but after I cuts some plastic parts on the trip shunt I can put them together and it will work to trip but is not usable as they need some guides to stay properly connected together.
This are some very old breakers and not good quality at all but the trip shunt works likely with many similar breakers that may be better quality.
They of course fit great and trip as expected.
I had high expectations from this inexpensive TAXI breaker but the inconsistent contact resistance will not allow me to be able to recommend it.
You can see the diagram showing there is a contact that will open as soon as breaker is tripped disconnecting the coil and that is the case for all of them except the MidNite.
The thing next to is the trip coil (I got an extra one as I have another Taxi breaker and that has more consistent contact resistance so not sure why this is different).
A look inside the Taxi breaker.
Unfortunately MidNite is the only one that has no switch to open when breaker is tripped so that coil is disconnected thus this is not usable in almost any application so not sure why they did that. But this is made by Carling for MidNite so maybe they have a similar mode but with coil disconnect switch as if so this will be a good quality breaker.
If you use or know of other breakers with trip coil circuit let me know and I will take a look.
Below are the current curves for those interested. I tested all of them at 18V and they all work at that minimum voltage (most are guaranteed to work at 19V) then for testing the current I supplied them with 24V but there was a 0.5Ohm resistor in series used to measure the current so there was some voltage drop on that.
Current is displayed correctly as 1A per division.
Below is the graph for the large 3 x 315A SafeSave breaker the S version but the H will be the same as it has the same trip coil.
Below is for the TAXI breaker not that different form the larger 315A one above and they are both noisy when they trip so if you do not expect that you may have a hart attack.
The Midnite requires only 1.7A so very efficient and also quiet to bad it will never stop the current trough coil so coil will get damaged if not disconnected withing a few seconds.
Below is the Fen Li MX that disconnects the Jieke breaker and it works very reliably to bad this sort of breakers are made by so many and is hard to find a quality one.
Below is the iMX+OF disconnecting the Langir but they are just not designed for each-other so I may need to search for a different MX shunt trip as Langir are fairly nice breakers and at a very good price.