3120-F521-H7T1-W19AG4-5A

Circuit breakers are a key component in the power distribution system. They offer an essential safety system for facilities that consume high voltage power, such as factories and large industrial buildings. The type of circuit breaker being discussed here, 3120-F521-H7T1-W19AG4-5A, is a special-purpose breaker that is designed to protect power systems, such as electronic control circuits, from overload and short circuit.

Application Field

3120-F521-H7T1-W19AG4-5A circuit breakers are used to provide overload and short circuit protection to electronic control circuits commonly found in industrial automation circuits, such as PLCs, motor starters, and timers, as well as to other power systems. This type of circuit breaker is most commonly used in power supply protection for power control systems and other special purpose devices.

Working Principle

The 3120-F521-H7T1-W19AG4-5A circuit breaker works on the principle of electromechanical action. When an overload or short circuit occurs, the breaker trips, cutting off the electrical circuit. The breaker then re-closes when the fault condition has cleared, thereby restoring power to the circuit. The 3120-F521-H7T1-W19AG4-5A circuit breaker can be adjusted by adjusting the trip level. This is typically done with a service technician, who will adjust the trip level according to the needs of the electronics control system. The trip level adjustment changes the threshold at which the breaker will trip in response to an overload or short circuit.The 3120-F521-H7T1-W19AG4-5A circuit breaker is equipped with a thermal trip device. This device maintains a predetermined temperature within the breaker, and trips when the temperature in the breaker exceeds this threshold. The thermal trip device helps to prevent damage to the electronics control system from overheating due to an overload or short circuit.

Installation Considerations

When installing 3120-F521-H7T1-W19AG4-5A circuit breakers, the primary considerations are protection and safety. The breaker should be installed in a dedicated space to ensure efficient switch operation and to prevent accidental trips. Proper fuse sizes should be used to ensure that the breaker does not trip unnecessarily due to low current. It is also important to ensure that the breaker is properly grounded to prevent electric shock or fire in the event of a short circuit.

Conclusion

The 3120-F521-H7T1-W19AG4-5A circuit breaker is an important component of power distribution systems. In addition to providing overload and short circuit protection, this type of circuit breaker also helps to prevent damage to the power system from overheating due to an overload or short circuit. It is essential that this type of breaker is properly installed, with the correct fuse sizes and proper grounding. Following proper installation, the 3120-F521-H7T1-W19AG4-5A circuit breaker will provide years of reliable service.

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3120-F621-P7T1-W02L-15A	E-T-A	25.03 $	1000	CIR BRKR THRM 15A 250VAC ...
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