3 Phase Circuit Breaker Symbol. Symbol of dol s. You must size conductors to the lowest temperature rating marking on the breaker.
Two pole breakers can be either slash or straight voltage rated whereas 3 pole breakers are all straight voltage rated. Symbol for electricity 3 phase. 1200 a identifies the drawout circuit breaker represented by the symbol as a 1200 ampere circuit breaker.
It connects three phases whenever there is an overload or short circuit in any phase the circuit breaker trips all three phases simultaneously.
Symbol mcb 3 phase. Three poles circuit breaker this symbol represents circuit breaker with three poles. 225 a 3p indicates the fixed circuit breaker represented by the symbol as a 225 ampere 3 pole breaker. Symbol of dol s.
