3120-F521-P7T1-W19DG3-15A

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A circuit breaker is a device designed to automatically interrupt an electrical circuit for the purpose of protecting the circuit from electrical faults. The 3120-F521-P7T1-W19DG3-15A is a type of circuit breaker with Enhanced Trip Units and Off-State Current devices. It is used to detect and clear overloaded, short-circuited currents and to protect today\'s advanced electronic equipment.

Design and Components

The 3120-F521-P7T1-W19DG3-15A circuit breaker contains a variety of components, including a manually operated handle, a trip-free trigger, a trip solenoid, a reactance coil, toggle springs, a trip microswitch, current-limiting trip elements, and an auxiliary switch. The design of the circuit breaker has a central element that acts as a pivot for the entire device. This central element is surrounded by a series of contacts consisting of stationary, movable, and roller contacts.

The main components of the 3120-F521-P7T1-W19DG3-15A circuit breaker are the current-limiting trip elements and the off-state current devices. The current-limiting trip elements are designed to detect and clear any overloads, short circuits, and high-energy build-ups. The off-state current devices are used to prevent electrical arcing between the contacts, reduce heat buildup, and protect against electrical fires.

Application Field and Working Principle

The 3120-F521-P7T1-W19DG3-15A circuit breaker is designed for applications in a wide array of industrial, commercial, marine and residential applications. It can be used in many different voltages ranging from 480 volts up to 690 volts, and is also suitable for circuit protection from currents ranging between 65A to 200A. The circuit breaker works by comparing the current passing through the system with the preset adjustable current. If the current exceeds the preset threshold, it will open the circuit and prevent further current flow. The circuit breaker will reset automatically when the fault is corrected or the protection limit is exceeded.

The 3120-F521-P7T1-W19DG3-15A circuit breaker is a great choice for providing reliable circuit protection in a wide variety of applications. Its enhanced trip units and off-state current devices provide added protection against overloads and short circuits, while its current-limiting trip elements provide quicker response and more reliable circuit protection. In addition, its built-in reactance coil reduces heat buildup and provides additional protection against electrical fires.

Conclusion

The 3120-F521-P7T1-W19DG3-15A circuit breaker is an excellent choice for providing reliable circuit protection in a variety of applications. Its design and components provide added protection against overloaded and short circuited currents, while its current-limiting trip elements provide quicker response and more reliable circuit protection. In addition, its built-in reactance coil reduces heat buildup and provides additional protection against electrical fires.

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