SU3C12UC

Series:	SUxxxUC
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal Magnetic
Moisture Sensitivity Level (MSL):	--
Current Rating:	12A
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: SU3C12UC Application Field and Working Principle

Circuit breakers are devices that can detect abnormal currents in electrical equipment and initiate a cutoff of power to prevent electrical fires. SU3C12UC is a kind of circuit breaker, applied in the commercial, industrial, and residential settings. It is used to protect low voltage devices such as typewriters, washing machines, and computers from potential power failure. This article will explain the application field and working principle of SU3C12UC circuit breaker.

Application Field of SU3C12UC

SU3C12UC is a circuit breaker intended for use in low-voltage applications. It is typically used for power distribution and for protection against overload currents in commercial and industrial facilities. It is also suitable for residential use as well.SU3C12UC is used to protect against overloads that would otherwise cause damage to equipment. It has a limited capacity to withstand short-circuit currents, making it suitable for applications with low short-circuit current levels.

Working Principle of SU3C12UC

The SU3C12UC is a type of circuit breaker that is designed to detect dangerous overloads or short circuits in electrical wiring, and to disconnect the power in response to such events. It has two major components: the trip unit, and the contacts. The trip unit is the device that detects dangerous overheating and/or overcurrent and causes the contacts to open when the conditions are detected. The contacts are the switch part of the breaker that disconnects the circuit.The trip unit on the SU3C12UC Circuit Breaker has two sensing elements: an overcurrent sensing element (magnetic) and an thermal sensing element (thermal-magnetic).When the current exceeds a predetermined level, the magnetic element trips, and the breaker disconnects the load from the power source. Likewise, if the ambient temperature surrounding the circuit breaker exceeds a certain threshold, the thermal sensing element trips and the contacts will open.When a circuit breaker has been tripped, the way to reset it is by pressing the toggle button at the top, which will reset the breaker and restore power to the circuit. The breaker must be checked to make sure the fault has been cleared before the breaker is reset.

Conclusion

The SU3C12UC Circuit Breaker is a type of device essential to modern electrical installations. It is used to protect circuits and equipment from dangerous overloads and short circuits, and provide electricity safely to the areas. The working principle, as discussed in this article, explains how the trip unit and contacts of the breaker work together to detect, and disconnect potentially hazardous conditions.

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