UPG1-8338-2 Circuit Protection

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Circuit breakers are devices that can detect an overload or short circuit and disconnect the circuit to prevent damage to the powered equipment. The UPG1-8338-2 circuit breaker is designed for both residential and commercial applications and is UL recognized and/or CSA certified to UL Standard 489. It is suitable for heavy industrial applications, such as on motor, transformer and generator circuits.

The UPG1-8338-2 circuit breaker has a wide range of application fields, such as electric heating, lighting, air conditioning and motor control systems. It is especially suitable for high-current AC-DC power panel applications, such as in solar and wind power systems. The breaker has both a thermal and magnetic trip element which enables it to react quickly to a fault or overload without having to trip repeatedly due to thermal inertia.

The working principle of the UPG1-8338-2 circuit breaker involves the use of a bimetallic strip. The bimetallic strip is composed of two metal strips bonded together, with one strip made from a material that has a higher thermal coefficient of expansion than the other. The strips are connected to a series of contacts. When the current passing through the breaker exceeds its rating, the current causes the bimetallic strip to deform, thus opening the contacts and disconnecting the circuit.

The UPG1-8338-2 circuit breaker also features an auxiliary DC release which is used to trip and reset the breaker in the event of a fault. The DC release is connected to the breaker\'s trip coil, and when the coil receives a signal from the breaker, the DC release triggers the trip mechanism and opens the contacts. The reset button can then be used to reset the breaker and restore power to the circuit.

The UPG1-8338-2 circuit breaker is designed for applications that require high-current ratings, such as HVAC systems and industrial motor control systems. The breaker is UL recognized and CSA certified for Safety and has a temperature rating of 65-140°F (−60-+60°C).

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