APG21-8498-1

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Circuit breakers are essential devices in the power industry, offering complete protection against electric shocks and overloads. The APG21-8498-1 is a particularly versatile and powerful circuit breaker that can be used in a variety of applications. This article will provide an overview of the APG21-8498-1 application field and working principle.

The APG21-8498-1 is a high-performance circuit breaker designed for a variety of applications. It is a three-pole, thermomagnetic protection system with a rated AC voltage of up to 1000 V, a rated thermal current of up to 6500 V and a rated making current of up to 6500 A. It has a wide variety of features such as adjustable trip settings, short-circuit protection, over-current protection and over-voltage protection. It also has a high breaking capacity and a wide temperature range of -25°C to +50°C, making it suitable for a variety of environments. It is suitable for application in both residential and commercial buildings.

In terms of its working principle, the APG21-8498-1 features a thermal-magnetic trip unit. This trip unit consists of a heating element connected to a bimetallic strip. When the current exceeds the rated value, the heating element heats up and causes the bimetallic strip to bend. This, in turn, activates the magnetic trip unit which then trips the breaker. The breaker is then reset using the reset button on the front of the device.

In addition to the thermal-magnetic trip unit, the APG21-8498-1 also features a series of adjustable trip settings. These settings include the over-current protection setting which allows the breaker to trip at a predetermined current; the over-voltage protection setting, which offers increased protection against power surges; and the ground fault protection setting, which helps protect appliances from dangerous electrical shocks.

The APG21-8498-1 is a powerful and reliable circuit breaker that offers complete protection against electric shocks and overloads. With its adjustable trip settings, it is suitable for a variety of applications such as residential and commercial buildings. Furthermore, its thermal-magnetic trip unit and series of adjustable trip settings make it ideal for use in hazardous environments.

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