1) выключатель, переключатель; разъединитель; реле; коммутатор
2) стрелка (железнодорожных путей)
- to switch off the power
- to switch on the power
- automatic switch
- boom hoist limit switch
- boom limit switch
- button switch
- changeover switch
- control switch
- door contact switch
- double-blade switch
- double-pole switch
- earthing switch
- electropneumatic switch
- emergency switch
- enclosed switch
- float switch
- flush switch
- fused switch
- grounding switch
- handle switch
- high-tension switch
- knife switch
- light switch
- lightning switch
- limit switch
- master switch
- multiple contact switch
- oil switch
- pendant switch
- press switch
- pressure switch
- pull-type switch
- railway switch
- remote switch
- runway switch
- selector switch
- slip switch
- split switch
- spring switch
- stop limit switch
- surface switch
- thermal switch
- time switch
- turn-button switch
- twilight switch
- two-way switch
- wall switch