MaikaiLife
Solar Enthusiast
I have an EG4 communication hub that did not come with an inline fuse, can anyone share what fuses they have used for this? My system is 48v.
Thank you!
Thank you!
EG4 Communication Hub - Fuse
- Thread starter MaikaiLife
- Start date
Reviving this late but what gauge is the wire? You can just get a fuse rated for the ampacity of the wire gauge it comes with.
MaikaiLife
Solar Enthusiast
Thanks for circling back, I ended up getting these, I guess I should have shared when I did so.
They work perfectly and enable me to fuse the entire load for my 48->5v converter used by my Pi and run the EG4 Comm Hub.
They work perfectly and enable me to fuse the entire load for my 48->5v converter used by my Pi and run the EG4 Comm Hub.
Just to make sure, did you pick a fuse rated for the the thinnest cable in the string?
MaikaiLife
Solar Enthusiast
Yes, the wire for the converter and the wire for the EG4 Comm hub are the same gauges, I think 14 which should be about 15-20 amp wire and then I used a 5 amp fuse because the devices never use that much and it will blow way before the wire gets hot.
Yep, 14 AWG should be 15A so you undersizing is great! Glad you got that handled and were able to make your system safer.
MaikaiLife
Solar Enthusiast
are you asking if I can use Solar Assistant and the CommHub simultaneously? If so, yes they both work at the same time.
Last edited:
Just to be clear, is the EG4 comm hub for getting other brand BMS boards to communicate with an EG4 inverter? Or for getting EG4 batteries to talk to other brand inverters?
marionw
Solar Addict
EG4 LifePower4 batteries (only supports EG4 LifePower4) to communicate to inverters. The manual lists the communications protocols such as Pylontech that the EG4 hub supports. The hub acts as a "master" BMS for any connected EG4 LifePower4 batteries and converts the EG4 protocol to the configured protocol required by the inverter.
MaikaiLife
Solar Enthusiast
As @marionw mentioned, the CommHub's job is to allow EG4 LifePower4 batteries to talk with other non-EG4 inverters for closed-loop communication. The CommHub serves as a central controller, directing the inverters on how and when to charge and providing the overall status of the batteries. It allows you to view detailed specifics about the batteries that would otherwise require a computer, software, and a cable connection or a built-in screen on the batteries.
YES: getting EG4 batteries to talk to other brand inverters?
The communication hub is for EG4 Lifepower4 batteries to communicate with other inverters. I provided a screenshot from the manual indicating which inverters work with the communication hub.
Attachments
Similar threads
