3120-F321-P7T1-W19FG4-1A

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Introduction

3120-F321-P7T1-W19FG4-1A is a circuit breaker with a wide range of applications and features. It is a three-pole thermal-magnetic circuit breaker with a rated current of up to 50A (AC-1) and a rated maximum voltage of 690V AC. It offers a wide range of practical and operational features, such as over current protection, ground fault protection, trip indication, and manual reset.

Application Field

The 3120-F321-P7T1-W19FG4-1A is designed to be used in low voltage electrical power distribution systems within residential, commercial, and industrial facilities. This circuit breaker is suitable for applications such as motor protection, isolation, emergency power supply, and motor control. It can also be used in air conditioners, lighting systems, communication systems, and machine control systems. The circuit breaker also provides effective protection against short circuiting and over voltage conditions. Additionally, it can be used as a safety device for surge protection.

Working Principle

The 3120-F321-P7T1-W19FG4-1A is a three-pole thermal-magnetic circuit breaker. It is equipped with a bimetal thermal-magnetic release which trips when an overload or defined short-circuit current exceeds the rating of the device. When the controlled circuit is on, the power source activates the bimetal disc, which combines a thermal and a magnetic effect via heat generated by an overload current. If the thermal element or magnetic field is affected by a rise in temperature, the disc will open and release the circuit automatically.

The 3120-F321-P7T1-W19FG4-1A also offers additional features such as over current protection and ground fault protection. The circuit breaker has a power indicator, which indicates if the unit is tripped and if it needs to be manually reset. Additionally, the circuit breaker is designed with a manual test switch, which can be used to manually release the circuit if necessary.

Conclusion

The 3120-F321-P7T1-W19FG4-1A is a three-pole thermal-magnetic circuit breaker, with a wide range of applications in various types of electrical power distribution systems. It features over current protection and ground fault protection, along with a manual test switch and trip indication. The device is suitable for residential, commercial, and industrial use, providing effective and reliable operation in any environment.

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