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.

https://www.amazon.com/Bussmann-CB285-40-Surface-Mount-Circuit-Breakers/dp/B01G5WHRPC/ref=sr_1_fkmr3_1?keywords=bussman+285+series+surface+mount+breaker&qid=1575411137&sr=8-1-fkmr3

https://www.amazon.com/stores/node/9457273011?_encoding=UTF8&field-lbr_brands_browse-bin=Cooper%20Bussmann&ref_=bl_dp_s_web_9457273011

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)