229D-2-22600-11 Circuit Protection

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229D-2-22600-11 Circuit Breakers: Application Field and Working Principle

Circuit breakers are electrical devices used to protect electrical circuits from damage due to the overload or short circuit of power. They are used to protect homes, industrial sites, and institutional facilities from electrical hazards. The 229D-2-22600-11 circuit breaker is a 3-pole, 480/277-volt, molded case, double and single throw circuit breaker of the Pushmatic brand. It is a two-pole circuit breaker with a rated current of 60 amps.

Circuit breakers are employed in a wide variety of applications; from automotive and industrial, right down to residential. In an automobile, for example, a second-pole circuit breaker can be used to protect the starter motor which, due to its high current draw, can cause considerable damage if it fails to fire. In a residential home, circuit breakers are used to protect the main power line, and can shut off power in the case of a surge or overload.

Working Principle

The 229D-2-22600-11 circuit breaker operates by breaking or making an electrical connection when required. In the case of an overload, the contact points inside the breaker will close, sending an electric current to a thermal bimetal strip that increases in temperature. When the temperature reaches a pre-set level, the strip bends and physically moves the breaker contact points apart, effectively shutting off the electricity. In the case of a short circuit, current reaches a level that is unacceptably high for the system to handle, and again the contact points will be forced apart to shut off the electricity.

Once the circuit breaker is tripped, it must be reset to turn the electricity back on. This is done by manually pushing the "reset" button, and the breaker will resume its normal operation only after all of the proper procedures for resetting the circuit breaker have been completed.

Conclusion

The 229D-2-22600-11 circuit breaker is a 3-pole, 480/277-volt, molded case, double and single throw circuit breaker of the Pushmatic brand. It is a two-pole circuit breaker with a rated current of 60 amps and is used in a variety of applications, from automotive and industrial, right down to residential. The 229D-2-22600-11 operates by breaking or making an electrical connection when required, and is reset manually by pushing the reset button. This circuit breaker will protect the electrical system from damage due to overloads and short circuits.

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