Double Pole Breaker Symbol
These breakers can be used to serve two separate 120 volt circuits or they can serve a single 240 volt circuit such as your central ac s circuit.
Double pole breaker symbol. Double pole breakers have two hot wires that are connected by a single neutral wire. Double pole single throw. A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit its basic function is to interrupt current flow after a fault is detected. It cannot be used to supply 240 volts to a single circuit.
It connects three phases whenever there is an overload or short circuit in any phase the circuit breaker trips all three phases simultaneously. Unlike a fuse which operates once and then must be replaced a circuit breaker can be reset either manually or automatically to resume. Unlike a double pole breaker which serves a single 240 volt circuit a cheater serves two 120 volt circuits. Circuit breakers symbols for use in electrical pneumatic and hydraulic schematic diagrams.
Double pole double throw. Dpst double pole single throw. A dual on off switch which is often used to switch mains electricity because it can isolate both the live and neutral connections. This symbol represents circuit breaker with three poles.
Some dpdt switches have a central off position. This switch can be wired up as a. This switch can be wired up as a reversing switch for a motor. A dual on off switch which is often used to switch mains electricity because it can isolate both the live and neutral connections.
Available in svg png jpg dxf dwg formats. The voltage from either leg to the neutral line is 120 volts but across the two hot legs is 240 volts which is double the 120 volt supply. Such kind of breakers is used in three phase systems in industries. Reversing switch dpdt dpdt double pole double throw.
A different type of doubled up breaker is a quad breaker which serves two 240 volt circuits but is the same width as a standard double pole breaker.