When using an SSR that supports zero-crossing detection, it will maintain its state until the AC output waveform crosses zero on its own. At that point it turns on or off safely. One downside to ...

[TechColab] began by investigating existing ESP-01 solid-state relay boards but found that many of them momentarily enable the output on startup—a risk [TechColab] deemed unacceptable.

SSR Mining (SSRM) had expected to produce as much as 220K oz of gold at Copler this year, about half the company's anticipated global output; SSR owns an 80% stake in the mine.

after 2023 output totaled 706,894 oz at all-in sustaining costs of $1,461 per payable oz; Q4 production was 211,226 gold equivalent oz at AISC of $1,326 per payable oz. By 2028, SSR (SSRM ...