In Hebrew, there is a common slang "Shalter" (שאלתר) for the main circuit breaker in the electric panel. A common use of it, is "To lower the shalter" (להוריד את השאלתר).
Schalter - Switch in German. (Also SchutzSchalter - Safety Switch, which means RCD)
There is also some confusion with the terms for circuit breakers :
"Hatzi Automat" / "Maz" - mean MCB, rarely used at all
"Mamat" - mean MCCB, but in everyday talk used for MCB
"Breaker" - English word for any breaker, in everyday talk in Hebrew used for MCCB