IUGNF66-39709-442

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Circuit breakers play a vital role in the electrical industry and are used to protect buildings, homes, factories, and other areas from electrical damage. The IUGNF66-39709-442 circuit breaker is a high-performance circuit breaker designed to provide reliable protection for electrical systems. It is used in a wide variety of applications, including industrial, commercial, and residential power systems.

The IUGNF66-39709-442 is an electronic trip unit with a single-pole push-button reset. It is a type B curve thermal-magnetic circuit breaker with a reset time of 12 seconds. The breaker has an adjustable tripping current of 0.5-2.5 A and a maximum tripping current of 4 A. The IUGNF66-39709-442 is designed for use in 230 V AC circuits with a rated short circuit capacity of 10 kA.

The IUGNF66-39709-442 circuit breaker utilizes a combination of thermal and magnetic components to detect and trip when a high-current condition occurs. The thermal element is a bimetal strip that expands and contracts as the temperature increases or decreases. When current passes through the bimetal strip, it produces heat, which causes it to bend. The bending of the bimetal strip causes a mechanical linkage to open the circuit breaker contacts, thus interrupting the flow of current. The magnetic element consists of a coil of wire surrounding a movable iron core. When current passes through the coil, it produces a magnetic field that moves the iron core. This movement causes a mechanical linkage to open the circuit breaker contacts, thus interrupting the flow of current.

The IUGNF66-39709-442 has several key features that make it well suited for use in commercial and industrial applications. It is rated for 10,000 AIC but can be adjusted down to 4 A and 0.5 A. This gives it the ability to protect a wide variety of electrical systems. It also has three trip time settings: standard (1 second), medium (8 second), and long (12 seconds). The adjustable current and time settings make it easy to customize the protection for the application.

The IUGNF66-39709-442 circuit breaker is designed to provide reliable protection for industrial and commercial power systems. It is a high-performance breaker with adjustable settings that can provide exceptional protection for a variety of applications. The combination of thermal and magnetic tripping elements ensures that the circuit breaker will trip when a high-current condition is detected, providing reliable protection for electrical systems.

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