Update: Monitoring heat at the fuse and connections with this setup for a few days now. Increased charge and discharge current up to 120A (around 6600W at charging voltage). No appreciable heat buildup, only slightly warm to the touch after a couple hours charging.
The same day you left a review, some other person did too saying the same thing. It is currently unavailable. You probably saved some people's property and possibly lives. Good for you to leave that review!
Tells me the kind of person you are! Outstanding. Most people can't be bothered to help others! Good for you too!Heh, that was me. I couldn't let it go.
I know. I am searching for a 300A DC breaker for my EG4 batteries to put between the battery and inverter and I can't find anything. Not an Ebay person and don't like to buy used, so finding an ABB or something is near impossible. I want quality.
I have a 400A t-class fuse, but it is the switch I can't find. I had a 200A one but SS just told me to use 300A.
The Blue Seas switches are top quality and handle 600 amps as I recall. But they are rated to 48 volts only and are not acceptable for a 48 volt system.
Amazon has 225,250,300 and 350 amp fast blow T class fuses. There’s also nothing wrong with South Bend brand fast fuses
You can get that from NOARK. Wolfautomation.com can give you a quote on any of their offerings. I have the 250A version M2 which has a 20,000 AIC at 500VDC which is better than even class T fuse and is rated for 6,000 switching operations with no damage even under full load. The M3 goes up to 400A.
Call me uneducated. If the EG4 battery has a circuit breaker on the battery, why add a fuse inline?
Extra security/safety.
Yeah.. just imagine your main battery connection from a stack of server rack batteries shorts out. All the breakers will have to trip on all the server rack batteries to basically protect that single cable.
I know. Would not want anything under 60V
I have a bluesea 400A Class T fuse/holder. Just searching for the DC breaker the manual calls for. I have a Growatt 12kw 120A 250VDC AIO
THANK YOU! I have been searching for ABB but I will go investigate that. I really appreciate the tip.
Thanks rhino and Lt. Dan.
Can confirm, I have the Blue Sea classT fuse holder with South Bend fuse. They fit together well.
I requested a quote for 300A and I will come back and let everyone know what they go for currently. Appreciate all your help!
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www.electricalsafetyfirst.org.uk
Just for reference my NOARK 250A M2 MCCB Lug version was $223 last year. They are pricey but believe they are one of the best/safest breakers you can get. Also note the "busbar" version is the one that allows you to use lugs on the end of your cables and bolt it down. The "lug" version of the breaker is one with the compression screw that you probably don't want. Other thing to to note is you have to think about how to mount it since only thing you can get for mounting from NOARK is a din rail plate. I used a heavy duty din rail and simply used the enclosed long screws that came with it and fastened it to din rail with nuts.
