Review on TWTADE Mushroom Latching Emergency YW1B V4E02R by Dipp Samrock

For those who might be confused by break and make switches, here are my test results on this actual switch. Full blue switch labeled NO = circuit open switch in position meaning that when pressed (i.e. your item is now off/no power) the purple switch labeled NC = circuit open is on. Blue switch labeled NO = Circuit Complete I think the only useful switch is the purple for true emergency stop power off. Sure, the blue switch can be used to indicate an LED or microcontroller when you press it, but it shouldn't stop or power off your thing - then you don't have a true emergency stop.