Breakers
Breakers
The important things to look for in a PV isolator are
- can it carry the array's short circuit current
- can it handle the array's open circuit voltage
- always use a switch that exceeds these values by at least 10%
- the switch must be rated to break DC at these values
A breaker will usually have an arc trap in it so that if an arc is drawn when the contacts are open it will be safely extinguished. A run of the mill DC switch usually won't. (diysolarforum.com)
If you look to the right of the bit where it says DC250v theres a line with dashes underneath, that means DC. If it's a ~ that means AC, some of them on ebay don't say DC/AC but use those lines.
T Tocas Circuit Breaker with Manual Reset, 12V- 72VDC, Waterproof (100A Amazon $25)
https://baymarinesupply.com/dc-din-rail-breakers.html (Midnight Solar) (per Jusin)
Schneider 16A 2-Pole DC C60HDC 500V Solar Circuit Breaker CB , M (ebay)
Bay Marine Single MRBF Terminal Fuse Block Kit w/Fuse (Amazon $25), MRBF Surface Mounts (Amazon $47)
DELTEC ENERGY FUSE HOLDER W/ FUSE (Solaris 300A $75, Solaris 400A $75)
ANL Fuse Holder with ANL Fuse (windynation $16.29)
100 amp 150VDC Panel Mount Dual DC Ground Fault Protector (altE $101.68)
40 Amp, 150VDC, 120VAC, 1/4" Stud Panel Mount Breaker (altE $17.48)