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diy solar

Do I Need Solar Disconnects

Henderson

Solar Enthusiast
Joined
Jan 9, 2022
Messages
330
Hi all. I'm using Taixi MCB breakers for my solar panels which will connect to my pair of EG4-6500EX. I'm using 4 strings each comprised 7S (505W each) panels for each MPPT for each of the inverters. The MCB breakers are 25A 1000V and can break both +ve and -ve poles. My panels have a Voc of 51.9V. My question is this....if I'm using circuit breakers (also using PV fuses as well), should I still use solar disconnects such as the ones sold by Signature Solar https://signaturesolar.com/dc-disconnect-rooftop-isolator-switch-by-imo/

Thanks.
 
Ok thanks, was just wondering if given the extra disconnects in a different location would provide added safety in case there was an issue with the breakers.
 
Ok thanks, was just wondering if given the extra disconnects in a different location would provide added safety in case there was an issue with the breakers.
Yea if it's useful to you , go for it , but not necessary.

In an emergency you can always pull the fuse
 
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