Second, a triac, silicon controlled rectifier ... It uses a second ESP8266 that sends a UDP packet to control the relay, and also listens for UDP packets to update the status of the indicator ...

As [Mic] often got requests to make high-power switching boards, he recently finally gave in and designed the one shown above based around a solid-state relay ... The ‘TRIAC BLOC’ is able ...

When programmed using TAC WorkPlace Tech Tool (WP Tech), these controllers provide control for fan coil and ... three high-voltage relay outputs (only one for the MN 110); four 24 Vac Triac (digital) ...