3120-F511-P7T1-W12DY3-10A

Series:	3120-F
Part Status:	Active
Lead Free Status / RoHS Status:	--
Breaker Type:	Thermal
Moisture Sensitivity Level (MSL):	--
Current Rating:	10A
Voltage Rating - AC:	250V
Voltage Rating - DC:	50V
Number of Poles:	1
Actuator Type:	Rocker
Illumination:	--
Illumination Voltage (Nominal):	--
Mounting Type:	Panel Mount

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Introduction on Circuit Breakers

Circuit breakers are electrical devices designed to protect an electrical circuit from damage caused by an overload or short circuit. They are used in residential, commercial and industrial applications. Circuit breakers trip when an overload or short circuit is detected, providing protection to the electrical circuit and preventing further damage to property or injury to people.

3120-F511-P7T1-W12DY3-10A Application Field and Working Principle

The 3120-F511-P7T1-W12DY3-10A circuit breaker is a medium voltage motor protection circuit breaker. It is mainly used in the protection and control of motors with a rated voltage range of 7.2kV~40.5kV and a rated current up to 4000A. It is an essential device in medium voltage power systems. The 3120-F511-P7T1-W12DY3-10A circuit breaker is a three-phase unit interrupter equipped with an operation mechanism. The operation mechanism is mainly used to control the closing, opening and closing of the bottom contact of the breaker. And it is also used to monitor the closing, opening and closing of the breaker. The primary function of this circuit breaker is to detect faults on the protected motor circuit, then rapidly open the contacts of the motor circuit to cut off the flow of current so as to protect the motor and other electrical equipment connected in series. When the protected motor has a short circuit fault, the circuit breaker can trip quickly and limit the short circuit current to a certain value. The working principle of the 3120-F511-P7T1-W12DY3-10A circuit breaker is relatively simple. When a motor starts, the motor will draw a large inrush current, which may exceed the maximum current of the circuit breaker. To protect the circuit, the 3120-F511-P7T1-W12DY3-10A circuit breaker is equipped with an overcurrent tripping device that will open the breaker when the current exceeds the maximum value.When a fault occurs on the motor protection circuit, the circuit breaker will trip to quickly open the breaker contacts to cut off the current. This prevents the motor from being damaged by the fault current. The tripping mechanism is also equipped with an auxiliary power supply so that the breaker is able to trip even in the event of a power outage. The 3120-F511-P7T1-W12DY3-10A circuit breaker has several features that make it efficient in use. It features low power consumption, high short circuit withstand capability, excellent dynamic performance, adjustable trip time and adjustable fault current limiting.

Conclusion

The 3120-F511-P7T1-W12DY3-10A circuit breaker is an efficient and reliable protection device for motor and other electrical circuits. It provides protection against overloads and short circuits, as well as providing adjustable fault current limiting. This makes it ideal for a variety of industrial and commercial applications.

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