QMB-203-11C3N-3BA

Series:	QMB
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Moisture Sensitivity Level (MSL):	--
Current Rating:	20A
Voltage Rating - AC:	250V
Voltage Rating - DC:	32V
Number of Poles:	1
Actuator Type:	Push to Reset
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Circuit Breakers

The QMB-203-11C3N-3BA is a type of circuit breaker, providing the users with protection against electrical overloads and short circuits. By understanding the application field of this breaker and the working principle, users will be able to distinguish when they should be using this breaker rather than an alternative.

Application Fields

The QMB-203-11C3N-3BA is highly capable of handling long periods of inrush current and short, sustained periods of overloads on all types of electrical equipment, and is a reliable choice for high-power circuits. Its application fields include residential, commercial, and industrial buildings, aircraft, wind turbines, and offshore platforms.The QMB-203-11C3N-3BA can also be used in general networks, in compliance with the IEC 947-2 and IEC 60947 international standards. As such, it is most suitable for electrical systems and equipment rated at 100A AC-2, 125A AC-3, or 154A AC-3.

Working Principle

The basic principle of the QMB-203-11C3N-3BA’s working is that the three-pole miniature circuit breaker contains an internal switch, called an arc extinguisher. This is a “snap” operating mechanism which responds quickly to electrical disturbances via current surges.When a current fluctuation occurs, the snap mechanism kicks in and breaks the circuit, interrupting the flow of power and providing the necessary protection from overloading and extreme conditions. This snap mechanism means that the QMB-203-11C3N-3BA can control and break power more quickly than alternative circuit breakers.The QMB-203-11C3N-3BA also offers a degree of protection against short circuits. When current flows through a short circuit, the conventional circuit breakers shut off the power source before an explosion or fire can occur, further protecting users from harm.

Conclusion

To conclude, the QMB-203-11C3N-3BA is a reliable three-pole miniature circuit breaker designed to protect users from electrical overloading and short circuit conditions. With its quick “snap” response, this breaker is suitable for residential and industrial applications, as well as for general networks. This comprehensive protection makes the QMB-203-11C3N-3BA an ideal choice for areas where safety and reliability are paramount.

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