Dortronics ’ Waterproof Push Button Switches are available in two series, both rated for harsh environments. The WR5276-HD22 Series features an IP-66 rating and includes a neoprene gasket ...

When the momentary push-button (PB) switch is closed, 12V from C3 is applied at A, causing T2 to turn on. This state grounds the Reset bus, turns on PFET T4 by putting V gs(on) on its gate through the ...