Basic Circuit Breaker Operation
Understanding the single-pole breaker provides the foundation for all circuit breaker construction. The circuit breaker is designed under a spring actuated load. The circuit breaker connects power across a collapsible "bridge." When the power across the bridge, or breaker, surges to levels unsafe for the entire circuit, the bridge collapses, or the breaker trips, immediately interrupting the power flow, and opening the circuit.
Advantages of a Multiphase Electrical System
In a system requiring high levels of voltage and power delivery, a multiphase system is preferable. Imagine the electricity as water flowing through a series of pipes The amount of water that can pass through a large diameter pipe can also be delivered by two or three small pipes working together. In the same way, a multiphase electrical system is designed for this purpose---to deliver higher levels of power via smaller gauge wiring, thus creating a more manageable power delivery system.
Triple-Pole Breaker Operation
The three-pole breaker operates via the same method as a single-pole breaker. The difference is found in the amount of conductors that are connected, or bridged, by the three-pole conductor. Used most often in a three-phase electrical system, a three-pole breaker connects three different conductors, such as is often required by heavy duty industrial motors. When a surge exists anywhere in the system, across one or more of the conductors, the breaker trips, the power bridge collapses, and the circuit opens.
Single Pole Vs. Double Pole Circuit Breaker
Circuit breakers are used as safety devices to prevent an electrical circuit from drawing more current than it’s designed to use, preventing...
How Does 2-Pole Circuit Breaker Work?
As you might expect from their name, circuit breakers protect us against loose electrical current that can ruin appliances or fixtures, start...
What Is a Double Pole Breaker?
Double pole breakers are circuit breakers used to deliver power to 240-volt circuits while preventing electrical hazards. They are required for many...
How to Wire a 50-Amp Double Pole Breaker
Wiring a 50-amp, 240-volt, double-pole circuit breaker is a relatively easy project, even for the beginner, but you do need to understand...
How to Wire a Three Phase Circuit Breaker
In commercial and industrial applications, the use of three-phase power is common. This type of power is necessary for large motors, welding...
How to Size Three Phase Circuit Breakers
Circuit breakers are designed to protect the circuit, and especially the cables, to which they are connected. They are rated for voltage,...
How to Wire Three-Phase Electrical Panels
While most residential electrical systems rely on single-phase power supplies, industrial and commercial applications require three-phase systems to deliver the high voltage...