SU3D30UC

Series:	SUxxxUC
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal Magnetic
Moisture Sensitivity Level (MSL):	--
Current Rating:	30A
Voltage Rating - AC:	277V
Number of Poles:	3
Actuator Type:	Lever
Illumination:	None
Illumination Voltage (Nominal):	--
Mounting Type:	DIN Rail

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Circuit Breakers: SU3D30UC Application Field and Working Principle

Circuit breakers are a vital part of any power system. They are designed to protect equipment and personnel from damage caused by electrical faults. The SU3D30UC breaker is a three-phase circuit breaker designed for medium and high voltage applications. It is commonly used in the power, petrochemical, and auto industries and is capable of handling up to 6.3kV.

Applications

The SU3D30UC breaker is primarily used in three-phase power systems, such as in distribution boards and panel boards. In industrial settings, the breaker is typically used for protection against short circuit and overload conditions. Additionally, it can also be used for motor protection and motor control in industrial settings. In residential settings, this type of breaker can also be used for protection against power surges, reverse power flow, and other over current conditions.

Mechanical Features

The SU3D30UC is engineered for peak performance, with many features designed to make installation easy and increase the breaker’s life span. It features a corrosion-resistant design, particle-solid insulation, and non-roadside cleaning. Additionally, its mechanical trip system ensures accurate and reliable operation.

Working Principle

The SU3D30UC relies on a basic thermal-magnetic principle of operation. This means that the circuit breaker is set with a calibrated trigger point and works by sensing a pressure rise or temperature rise in the system. It activates a series of magnetic and thermal elements which, when combined, result in a trip. This allows the breaker to quickly detect and trip on fault conditions before damage can occur.

Advantages

The SU3D30UC offers a number of advantages over other circuit protection devices. It is smaller and lighter than traditional circuit breakers, making it easier to install. It is also more reliable, with fewer components that can fail or wear down with time. Additionally, the breaker provides better protection against faults and surges due to its better reaction time and improved thermal-magnetic response.

Conclusion

The SU3D30UC circuit breaker is a reliable and versatile device designed for medium and high voltage applications. It is capable of protecting against short circuit and overload conditions, as well as against power surges, reverse power flow, and other over current conditions. Its user-friendly design and advanced thermal-magnetic response make it an ideal choice for a wide range of applications.

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