Three-stage switch

#1766649

#1730540

#1732351

#1786145

#1766399

#1782571

#1731186

#1732350

#1768481

#1731185

#1782506

#1732352

#1729253

#1730539

#1766152

#1786130

#1786144

#1786131

#1729252

#1732354