4430.1147 Circuit Protection

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Circuit breakers are an essential component of any electrical system and are designed to provide protection for equipment and personnel when an overcurrent condition is encountered.

The 4430.114 is a form of circuit breaker that is specifically designed for compliance with the American National Standards Institute (ANSI) C37.92 UL 489 Partial Arc Rating requirements. This type of circuit breaker is typically used in commercial applications such as office buildings, hospitals, schools, and other high-traffic areas. This type of circuit breaker is also designed to offer protection against overcurrents, short circuits, and overloads, which can lead to hazardous situations.

The 4430.114 utilizes a two-pole design that contains a UL 489-Listed thermal-magnetic trip unit. Its design is intended to provide both thermal and magnetic protection from overcurrents, short circuits, and overloads. It also offers the potential of a partial arc voltage rating, allowing it to withstand twice the normal current of other circuit breakers. This means that it is capable of handling overloads and short circuits more efficiently than other types of breakers.

The 4430.114 operates on the principle of thermal-magnetic protection. When the breaker is closed, it functions as an ordinary switch. When an overcurrent or short circuit occurs, the breaker’s trip unit is designed to open the contactors, thus interrupting the circuit.

When the 4430.114 senses an overload, it will begin to trip due to the temperature of the contacts. It will measure the temperature of the contacts and if the temperature exceeds the trip point, it will cause the contactors to open, thus interrupting the flow of current. Additionally, the trip unit is designed to provide a delay before it interrupts the circuit in order to give the contactors time to cool and reset.

The 4430.114 also features a magnetic trip unit, which is designed to protect the equipment from short circuits. When a short circuit occurs, the magnetic trip unit will sense the increase in current, and it will cause the contactors to open, thus interrupting the circuit. This type of circuit breaker is typically used in applications where rapid interrupting times are required, such as data centers or medical facilities.

The 4430.114 is designed to provide increased safety in electrical system applications. It offers thermal and magnetic protection against overcurrents, short circuits, and overloads, as well as a partial arc voltage rating that is capable of handling twice the normal current levels. Additionally, its design allows it to respond rapidly to short circuits and overloads, thus providing increased safety in applications where rapid interrupting is critical.

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