UPGF66-32295-30 Circuit Protection

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Circuit Breakers are essential components of any electrical power distribution network. In any system, they are designed to automatically open or close a circuit when certain conditions are met. The UPGF66-32295-30 is an example of a circuit breaker, and this article provides an overview of its application field and working principle.

Application Field

The UPGF66-32295-30 is a molded case circuit breaker (MCCB) designed for indoor use in residential, commercial, and light industrial environments. It can be used in both single-phase and three-phase power systems, and is suitable for AC or DC current up to 240V/415V. It is designed to provide protection in the case of short-circuits or overloads, and can handle a maximum short-circuit current of up to 100KA.

Thebreaker has a maximum breaking capacity of 18KA, and it is available in two different types: the standard case MCCB and the RCCB (Residual Current Circuit Breaker). The RCCB type provides additional protection against electric shock due to ground fault leakage. The UPGF66-32295-30 is UL approved, and CE certified.

Working Principle

The UPGF66-32295-30 employs a thermal-magnetic tripping mechanism to protect against overcurrents, overvoltages, short-circuits, and other potentially hazardous conditions. When a current exceeds the breaker’s set limit, it trips, automatically opening the circuit and interrupting the current. This is known as a thermal trip, and it helps to protect the circuit from damage due to excessive current.

When a short-circuit occurs, the device uses a magnetic trip to immediately disconnect the circuit, thus preventing further damage to the system components. The UPGF66-32295-30 has an adjustable trip setting; this allows the user to set the maximum amount of current that the breaker can handle before tripping. Additionally, the device is also equipped with a ground fault protection system, which will trip if a fault ground leakage current exceeds a set limit.

The UPGF66-32295-30 has a maximum operating temperature of 65°C (149°F) and a flammability rating of UL94-V-2. It also complies with all relevant international standards, including IEC 60934 and IEC 60950. This makes it suitable for installation in locations with high demands for safety, such as marine vessels and hazardous areas.

Conclusion

The UPGF66-32295-30 is a high-quality molded case circuit breaker designed for use in residential, commercial, and light industrial applications. It uses a thermal-magnetic tripping mechanism to protect against overcurrents, short-circuits, overvoltages, and ground faults. Furthermore, the device is UL approved and CE certified, making it suitable for use in safety-critical environments.

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