3120-F321-P7T1-W19LG4-15A

Series:	3120-F
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Moisture Sensitivity Level (MSL):	--
Current Rating:	15A
Voltage Rating - AC:	250V
Voltage Rating - DC:	50V
Number of Poles:	2
Actuator Type:	Rocker
Illumination:	Green
Illumination Voltage (Nominal):	185V
Mounting Type:	Panel Mount

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Introduction

Circuit breakers are devices that are used to protect electrical circuits from potentially damaging overvoltage and overload conditions. The 3120-F321-P7T1-W19LG4-15A circuit breaker is an example of a commonly used circuit breaker. In this article, we will discuss the application field and working principle of the 3120-F321-P7T1-W19LG4-15A circuit breaker.

Application Field of 3120-F321-P7T1-W19LG4-15A Circuit Breaker

The 3120-F321-P7T1-W19LG4-15A circuit breaker is designed for use in moderate- and low-voltage applications, such as commercial and residential buildings. This circuit breaker can be used in both the primary and the secondary circuits of a power distribution system. It is also suitable for use in motor control centers, energy management systems, and other applications where protection needs to be provided against overloads and short circuits.

Working Principle of 3120-F321-P7T1-W19LG4-15A Circuit Breaker

The 3120-F321-P7T1-W19LG4-15A circuit breaker works on the principle of overcurrent protection. The circuit breaker has a magnetic trip unit that is used to detect an overcurrent or a short circuit in the circuit. When an overcurrent or a short circuit is detected, the magnetic trip unit will trip the circuit breaker, which is activated by a coil of wire. This coil of wire is connected to the breaker’s contact points, which are designed to open and close the circuit. In addition to the magnetic trip unit, the 3120-F321-P7T1-W19LG4-15A circuit breaker also has a thermal trip unit. The thermal trip unit is designed to detect excessive heat in the circuit, which is an indication of an overload. When the thermal trip unit detects an excessive heat, it will trip the circuit breaker.

Conclusion

The 3120-F321-P7T1-W19LG4-15A circuit breaker is a commonly used device for low- and medium-voltage applications. It uses a magnetic trip unit and a thermal trip unit to detect overcurrents and overheating, respectively. When either of these conditions is detected, the circuit breaker trips automatically, thus protecting the circuit from any potential damage.

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