ATR20-A-63S-WB2-B-12.0A-2

Series:	ATR20
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Moisture Sensitivity Level (MSL):	--
Current Rating:	12A
Voltage Rating - AC:	250V
Voltage Rating - DC:	50V
Number of Poles:	1
Actuator Type:	Push to Reset
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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IntroductionThe ATR20-A-63S-WB2-B-12.0A-2 belongs to the category of circuit breakers, which protect electrical networks against short circuits and overloads. This breaker is suitable for use in domestic, commercial, industrial, and emergency circuits. The ATR20-A-63S-WB2-B-12.0A-2 circuit breaker has a robust design, making it strong enough to withstand harsh environments. It is also extremely energy-efficient and has long operational lifetimes, making it an ideal choice for applications with limited service life.Historical BackgroundCircuit breakers have been around for a long time, having been invented in the late 19th century. This was shortly after the invention of different types of electric motors, which drove the need for reliable protection against electrical overloading. Before the invention of circuit breakers, it was typical to use fuses as a means of overcurrent protection. Fuses were not ideal, however, as they were prone to blowing and had to be replaced on a regular basis. Circuit breakers provided a better solution, as they were more efficient and did not require replacement.Working PrincipleA circuit breaker works by cutting off the electrical current when an overload or short circuit is detected. This is done by sensing the amount of current flowing through the circuit, and when the current exceeds a set limit (depending on the type of breaker), an internal switch is triggered to break the circuit.One important factor to consider when selecting a breaker is the thermal rating, which is the maximum amount of current that the breaker is able to carry without tripping. As the current increases, the temperature of the breaker increases, and when it reaches a certain level, the breaker trips and breaks the circuit.Types of Circuit BreakersThere are various types of circuit breakers available. The two most common types are thermal-magnetic and magnetic-only breakers. The ATR20-A-63S-WB2-B-12.0A-2 is a thermal-magnetic breaker, meaning that it combines the features of both types of breakers.Thermal-magnetic breakers work by sensing the temperature of the breaker, as well as the current, to determine when to trip the breaker. When the temperature reaches a certain level, the breaker trips, regardless of the amount of current in the circuit. The temperature and current settings can be adjusted to adapt to different applications.Magnetic-only breakers are more straightforward, as they rely only on the amount of current in the circuit to determine when to trip the breaker. They do not have a thermal rating, and as such, they are better suited for circuits with steady, low current.ApplicationsThe ATR20-A-63S-WB2-B-12.0A-2 is suitable for a variety of applications, including domestic, commercial, industrial, and emergency circuits. It is suitable for single and 3-phase applications, and can be used to protect against both overloads and short circuits.In domestic circuits, the breaker is typically used to protect lighting circuits, as well as other low-voltage appliances. In commercial and industrial applications, the breaker is used to protect costly equipment from power surges or other electrical faults. In emergency applications, the breaker is often used to shut off power to an area in the event of an emergency, such as a fire.ConclusionThe ATR20-A-63S-WB2-B-12.0A-2 is an example of a circuit breaker which is designed to protect electrical networks from overloads and short circuits. This breaker is suitable for use in a variety of applications, from domestic to commercial, industrial, and emergencies. Its robust design and energy-efficiency make it a reliable and cost-effective solution for many applications.

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