2907199

Series:	HMC
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Magnetic (Hydraulic Delay)
Current Rating:	20A
Voltage Rating - DC:	50V
Number of Poles:	4
Actuator Type:	Toggle
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	DIN Rail

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

Circuit breakers are widely used in a variety of applications to provide electrical protection and safety against an overload or short circuit. In the simplest form, a circuit breaker consists of a switch that is activated by current flowing through the circuit. When the current increases beyond a certain predetermined level, the switch is triggered and the circuit is broken, leaving the user without electricity until the cause of the excess current is identified, and corrected. In the case of a short circuit, the switch is triggered and the electricity is cut off from the load, preventing further damage to the system. In more complex applications, circuit breakers are used to provide selective protection of electrical equipment and lines.

Application Fields and Working Principle

Circuit breakers are used in a variety of applications in both residential and commercial settings. In an industrial environment, they are typically used to protect motor loads and control circuits. A typical motor load protection circuit breaker will trip when the current reaches a preset level. Typically, this level is set to a maximum level that is equal to approximately 1.5 times the rated motor current. This will help to prevent the motor from being overloaded and potentially causing damage to other equipment and components.In a residential setting, circuit breakers are often used in tree service and landscape lighting applications. A branch circuit breaker is used to protect the branch circuit from an overcurrent situation. This includes situations where the branch circuit has too many appliances or fixtures connected, or the wiring has a mistake that causes an increase in current. The branch circuit breaker will sense the current increase and trip, breaking the connection and preventing further damage. In a landscape lighting application, a device known as a ground fault circuit breaker is used. This device is able to detect an imbalance in current passing through the circuit and will automatically trip when the current reaches a preset level. This prevents the lighting system from receiving too much power, which could cause a fire.Circuit breakers also provide protection in critical applications, such as computer systems and data centers. In these cases, a monitoring circuit will be used to detect when something goes wrong with the system and will cut off the power if necessary. This prevents the system from crashing and losing valuable data.Finally, circuit breakers can be used to detect and control hazards in various industrial applications. For instance, in a hazardous chemical processing system, a special type of switch known as a limited current breaker can be used to detect when too much hazardous material is passing through the system, and will shut off the power until the problem is corrected.

Conclusion

Circuit breakers are an indispensable tool for providing electrical protection and safety in a wide range of industrial, residential, and critical applications. By utilizing its mechanism of overheating protection, short circuit protection, and ground fault protection, circuit breakers can help prevent costly damage caused by power surges, protect electric equipment and lines, and save data and other valuable assets. Thus, it is essential to be familiar with the principles and application fields of the circuit breaker in order to ensure the safety and reliability of any electric system.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description