Usually the load center and the breaker have to be of the same manufacturer to operate correctly.
Circuit breakers do not have circuit diagrams. The breakers have an input where the distribution voltage is applied and an output where the load is applied. If you want to know what is inside a breaker, the electrical terminology to use is "shop drawings" of the specific breaker that you need information on.
explain me about the contactor works with examples. if i want to control a motor with contactor. and how i can use contactor in loops with over load and circuit breakers.
circuit breakers ...fuses
No, it is not safe to use two 20 amp circuit breakers to protect a 40 amp circuit. Circuit breakers are designed to protect the wiring in a circuit from overheating, and using a higher amperage circuit breaker than the wiring is rated for can lead to overheating and potential fire hazards. It is important to use the correct size circuit breaker for the amperage rating of the circuit.
For 220v circuits
Power plants typically use a variety of switches, including isolator switches, circuit breakers, and load break switches. Isolator switches ensure that a circuit can be safely de-energized for maintenance, while circuit breakers protect electrical circuits by interrupting the flow of electricity in case of faults. Load break switches allow for the safe disconnection of loads under load conditions. These switches are crucial for maintaining safety and reliability in power generation and distribution systems.
A circuit breaker is a safety device that is put in an electrical circuit. When something fails, or shorts out, the circuit breaker "senses" the excessive current and automatically opens (or breaks) the circuit. They are used in homes, as well as some electrical devices. They are different than a fuse in that a circuit breaker can be reset. A fuse on the other hand, has to be replaced once it opens up. I hope this helps you. for more info, here is a web page about circuit breakers: <a href="http://www.wisegeek.com/what-is-a-circuit-breaker.htm">Ciruit breakers</a>
Most automotive circuit breakers reset themselves after they cool off. Some bigger trucks use circuit breakers that are reset manually. They have a button you push in to reset the breaker after it has cooled off.
No. A relay is an electric switch and a circuit breaker is an overcurrent device.
For a home owner, yes they are.
For a home owner, yes they are.
You need these types of circuit breakers when using 240 volt power rather than 120 volt. Large appliances such as a dryer require these larger circuit breakers. Other appliances such as stoves and some water heaters also require them.