4120-G217-J3M1-S8S0ZB-3A

Series:	4120
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Moisture Sensitivity Level (MSL):	--
Current Rating:	3A
Voltage Rating - AC:	115V
Voltage Rating - DC:	28V
Number of Poles:	1
Actuator Type:	Push-Pull Plunger
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Circuit Breakers

4120-G217-J3M1-S8S0ZB-3A circuit breaker plays an important role in industrial and commercial operations. It is mainly used for controlling the electrical circuits to protect the associated equipment from overloads, short circuits, or excessive levels of current. In this context, so as to understand the application field and working principle of the 4120-G217-J3M1-S8S0ZB-3A circuit breaker, we need to know about the basic facts related to circuit breakers and their function.

What is a Circuit Breaker?

A circuit breaker is an electric switch that shuts off the power either automatically or manually. It interrupts the flow of electricity in the circuit when there is an overload,short circuit,or excessive amperage. Circuit breakers are used to protect electrical equipment from damage due to excessive current levels. They can also be used to protect people by preventing electric shocks.

Types of Circuit Breakers

There are several types of circuit breakers, which can also be classified into three categories: mini, standard and high-voltage circuit breakers. Mini circuit breakers (MCBs) are designed to protect small electrical equipment like lamps, outlets or light fixtures against short circuits and overloads. MCBs are usually rated for currents up to around 20A and voltages up to 230V. Standard circuit breakers (SCBs) are designed to protect motors,industrial machines and other higher current electrical application. They can be used in both AC and DC circuits and are rated up to around 100A and 440V. High-voltage circuit breakers (HVCBs) are designed to protect vital parts of high-voltage circuit such as transformers, reactors, and capacitors. High-voltage circuit breakers are rated up to around 6000V.

Application Field of 4120-G217-J3M1-S8S0ZB-3A Circuit Breaker

The 4120-G217-J3M1-S8S0ZB-3A circuit breaker is designed to protect electrical equipment from overloads, short circuits and other hazardous conditions. It is suitable for controlling circuits in industrial or commercial installations such as motors, pumps, machinery and other high-current applications. This circuit breaker is reliable and resistant to temperature, moisture and vibrations. Due to its high current-carrying capacity, it can be used for controlling heavy-duty circuits that are rated up to 100A and 440V AC.

Working Principle of 4120-G217-J3M1-S8S0ZB-3A Circuit Breaker

The 4120-G217-J3M1-S8S0ZB-3A circuit breaker utilizes a thermal-magnetic trip unit to provide comprehensive protection against hazardous conditions. It has a set of individual temperature-based elements and magnetic elements inside its trip unit which continuously monitor the circuit current. When the circuit current exceeds the current rating of the circuit breaker, the trip unit\'s thermal elements heat up and start to expand. This expansion causes the trip unit to open the circuit breaker contacts and trip the circuit breaker to shut off the power. At the same time, the magnetic elements start to activate the trip operation at faster rates. In summary, the 4120-G217-J3M1-S8S0ZB-3A circuit breaker is designed to protect electrical equipment and people from potentially dangerous overloads,short circuits,or excessive levels of current. This circuit breaker has a high-quality trip unit that utilizes thermal and magnetic elements to sense and trip the circuit breaker quickly at higher levels of current. Additionally, it is suitable for controlling heavy-duty circuits that are rated up to 440V AC and 100A.

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