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Shunt is 500a and loads are large 150a 24V often, but all wire sizes are correct or over cap.

Yeah sure. here is a pic also: https://www.thornwave.com/products/powermon-5s-bluetooth-battery-monitor-dc-power-meter-with-integrated-500a-shunt

Yeah that is the standard shunt but I have a Smart Shunt that is supposed to be connected to B+, so I can't think of any reason not to attach a fuse directly and lose one more connection. Any thoughts are welcome.

Is there a good reason not to attach a large DC fuse directly to the load side of a shunt? Space is limited. Thanks anyone!

Sounds interesting...thanks!

Can you share some different views please (pins) ? Is there a relay function? Thing looks awesome.

Wow you put a lot of thought into that. Very nice setup. I'm hoping not to have spiking issues. My PMG is top notch so will try the K.I.S.S method first. The old C40 has been such a good piece. I can't see any downsides at this point. Also planning on working with the maker for their recoms..I...

Thanks for taking the time to share that!

How much wind/hydro do you average?

Yeah I like that. Lots of safety.

OMG that is funny! Thought I would look into reinstalling the aux.....someday

I actually bought one that I plan to keep in reserve. Then found out it needs the Aux out to throw a relay, which the one I stupidly bought does not have. Not made of $ so exploring this route now. :unsure:

@ FilterGuy Forgot to mention my C40 was limiting my hydro to 30amps...and I have bigger hydro ambitions. ? So if upgrading CC and batts, might as well try something new with a controller NOT tailored for solar. So much out there now!

I was going to try those in a SPDT config but decided to just go mech for ease.

Thanks for the number! I am waiting for delivery to test. Looks very promising to me.

Yeah, thats the one I have ordered...not much info out there on them though.

Yeah I agree about the windmill type relay. But am going to try this new shunt for awhile and see what it can do. I have been really happy using the C40 for my (very stable) hydro and lead acid batts...just think it's time (fun) to try some new tech/batts. I can always switch back to the C40. Do...

Didn't see in mention of chatter in the smart shunt specs. Do you think it might be an issue? Maybe an SSR?

That is a great question. I can't see the need for the C-40 with the smart shunt relay, and smart bms. I can simply set my charge on a timer via smart shunt then the bms should top balance no? edit* Would like to use the C-40 to add a couple panels to this system.

I have a similar issue with my old Trace C-40. Upgrading to LiFePO4 with the older controller is definitely doable especially with a decent BMS. Check this out: https://www.solacity.com/how-to-keep-lifepo4-lithium-ion-batteries-happy/ Was useful to me before switching to this...

I am upgrading to LiFePO4 batteries and rewiring my system and plan to stop using the Trace C40 C.C. for hydro that has served me well for over 20yrs. Would like to incorporate a couple solar panels using the old controller. What you would do with this?

Looks great on that roof! Sweet setup.

My situation was exactly yours...upgrading from t105's, to in my case 230Ah cells. Old Trace 4024 that has worked flawlessly for over 20yrs now. I would suggest a larger bms if upgrading inverter soon. I had to go with the Daly 200ah do to time constraints. Having extra amp capacity at the bms...