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How to control high power (~5kW) heating element using MCU? I need a very simple application that shuts down the element, when it reaches set temperature. Maybe I can do it using SCR? F.e. Т161-160 (https://www.pentod.com/userfiles/product_files_shared/T161-160.pdf). And what should I pay attention to?

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  • \$\begingroup\$ How accurately do you need to control the temperature? A simple On-Off controller will not regulate very well. If you need precise temperature control, you need a PID controller. en.wikipedia.org/wiki/PID_controller \$\endgroup\$
    – Mattman944
    Apr 27, 2020 at 9:13

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Use a solid-state relay (SSR). It provides complete electrical isolation between your controller and the mains by means of optical isolation.

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