2 position selector pushbutton switch 1.manufacture factory 2.Fix diameter:22mm ... as electric power,telecommunication, machinery, marine, textile, printing, miningindustrial equipment , and etc 3. Working EnvironmentOperational voltage:≤380V AC or ≤220V DCAmbient ... key,with light,self-lock,self reset,convex,waterproof... 2 position stay put selector pushbutton switch, Schneider type pushbutton