CR11-51-30.0A-70026-1-V

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A circuit breaker is a switching device used to control and protect an electrical circuit. It is one of the most important components in an electrical system. The CR11-51-30.0A-70026-1-V is a type of circuit breaker used in many industries and applications. This article will discuss the application field and working principle of the CR11-51-30.0A-70026-1-V circuit breaker.

Application Field

The CR11-51-30.0A-70026-1-V circuit breaker is widely used in the power transmission and distribution industry, as well as in residential and commercial applications. It is used to protect electrical installations and devices such as transformers, motors, and generators from excessive current, overvoltage, and overloads. It is also used to control circuits and prevent equipment from being damaged by overcurrents due to short circuits or ground faults. The CR11-51-30.0A-70026-1-V is rated at 30A and is suitable for single-phase 230/400V AC circuits, or three-phase 400V AC circuits.

Working Principle

The CR11-51-30.0A-70026-1-V circuit breaker works on the principle of thermal-magnetic over-current protection. As the current passes through the circuit breaker, a thermal element is heated. The thermal element is a bimetallic strip that expands and contracts according to the increase and decrease in temperature. This movement is used to open and close the contacts of the circuit breaker in case of an over-current or short circuit situation. The magnetic element works in conjunction with the thermal element and is designed to open the contacts faster in the event of a short-circuit, thus providing additional protection.

In addition to over-current protection, the CR11-51-30.0A-70026-1-V circuit breaker provides overload protection as well. It is equipped with an adjustable trip setting that can be changed to help prevent overloads. This feature ensures that the circuit breaker does not trip until the current reaches the set trip level.

The CR11-51-30.0A-70026-1-V circuit breaker also provides protection against under-voltage. This protection is accomplished through the use of an adjustable release setting. This setting can be adjusted to limit the amount of voltage that can pass through the breaker.

The CR11-51-30.0A-70026-1-V circuit breaker is a reliable and robust switching device that can help protect electrical circuits from damage due to the effects of overcurrent, overload, and undervoltage. It is a versatile and reliable switching device that is suitable for a variety of applications.

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