3120-F521-P7T1-W19DG2-8A

Series:	3120-F
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Moisture Sensitivity Level (MSL):	--
Current Rating:	8A
Voltage Rating - AC:	250V
Voltage Rating - DC:	50V
Number of Poles:	2
Actuator Type:	Rocker
Illumination:	Green
Illumination Voltage (Nominal):	20V
Mounting Type:	Panel Mount

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Circuit Breakers

3120-F521-P7T1-W19DG2-8A Application Field and Working Principle

A circuit breaker is an electrical component or device designed to protect an electrical circuit against damage caused by excessive current flow in the circuit. 3120-F521-P7T1-W19DG2-8A circuit breakers are widely used in residential, commercial and industrial settings to protect wiring and circuits from damage. This type of breaker is also commonly referred to as a molded case circuit breaker (MCCB).Circuit breakers are made up of two types of parts: an electrical switch and a system of overload protection. The switch is used to control the flow of power to the connected devices, while the overload protection mechanism prevents damage to the circuit in the event of an excessive current flow. 3120-F521-P7T1-W19DG2-8A circuit breakers are typically designed to detect current flow in the circuit and to immediately shut off the flow whenever an overload or short circuit is detected. This prevents the circuit from being subjected to further damage by allowing it to cool down before resuming normal operation.3120-F521-P7T1-W19DG2-8A circuit breakers typically feature a variety of built-in features that help with efficient and reliable circuit protection, such as thermal-magnetic tripping, short-circuit currents and ground-fault protection. They are also designed with an adjustable trip point and test button for proactive maintenance. The thermal-magnetic tripping feature works by using a bimetal strip, which is made up of two different metals that contract at different rates when exposed to heat. When the current flow in the circuit reaches a certain point, the bimetal strip is heated up and causes the circuit breaker to trip, instantly shutting off the flow of power. The trip point is adjustable so that it can be set to the desired current level for optimal protection.The short-circuit current feature is used to detect a sudden and unexpected increase in the current flow in the circuit. If the current flow exceeds a certain point, the circuit breaker will trip, shutting off the power to prevent further damage. Similarly, ground-fault protection detects a fault in the circuit and shuts it off to prevent damage or injury. The test button allows technicians to run a diagnostic on the breaker and test its functionality. This is done by manually pressing the button, which causes the breaker to trip and shut off the power. This can be used to proactively test the breaker and ensure that it is working correctly and providing adequate protection.Overall, 3120-F521-P7T1-W19DG2-8A circuit breakers are a reliable and efficient way to provide circuit protection and to ensure that a circuit remains safe from damage or injury. With its adjustable trippoint, thermal-magnetic tripping, short-circuit current, ground-fault protection and test button features, this type of circuit breaker is an invaluable tool for the protection of circuits and devices.

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Part Number	Manufacturer	Price	Quantity	Description