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Circuit Breakers

Circuit breakers are an important part of electrical distribution systems, providing protection against overloads and short circuits. These devices are designed to cut off electricity to an overloaded or short circuited circuit, minimizing damage to equipment and preventing hazardous conditions. UPG1-5377-79 is one of the most popular circuit breakers on the market and is designed for a range of applications.

Application Field

The UPG1-5377-79 circuit breaker is designed for use in a variety of industrial and commercial applications. It can be used in motors, pumps, fans, small transformers, and similar equipment. This circuit breaker is suitable for circuits operating at line voltage or at one-half line voltage up to 250V, making it ideal for use in small power systems. It is also suitable for use in fully enclosed systems and can be used with motors up to 2 kW.

Working Principle

The UPG1-5377-79 circuit breaker operates on a thermal-magnetic principle. It is equipped with a heat-sensitive bimetallic strip that responds to increases in temperature by deflecting an armature, which in turn activates the tripping mechanism. In addition, the circuit breaker contains an electromagnetic coil that responds to increases in current by energizing an electromagnet, which in turn pulls the armature. When either the bimetallic strip or the electromagnetic coil are tripped, a contact in the circuit is opened, preventing the flow of electricity.

Safety Features

The UPG1-5377-79 circuit breaker is designed with safety in mind. It features a double-throw switch that ensures power is cut off to both phases when tripped. It also offers interrupting capacity up to 10kA, ensuring that it can handle large current surges. The housing of the circuit breaker is also designed to contain any arcing that may occur when the breaker trips.

Installation

The UPG1-5377-79 circuit breaker is easy to install and is designed to be mounted vertically or horizontally. It is compatible with many different panel boxes and can be used as a single-pole or two-pole breaker. The unit is equipped with terminals for connection to the power source as well as a ground terminal to ensure proper operation.

Maintenance

Since the UPG1-5377-79 circuit breaker is designed for continuous duty it requires minimal maintenance. However, it should be inspected regularly for signs of wear or damage that could affect its performance. It is also important to ensure that the connections between the breaker and the power source remain secure, as an incomplete connection can lead to overheating and tripping of the breaker.

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