3120-F311-P7T1-W19DG4-16A

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A circuit breaker is a device designed to protect electrical appliances and equipment from damage due to excessive current, either from an internal short circuit or an external fault. 3120-F311-P7T1-W19DG4-16A is a type of circuit breaker. Its application field and working principle are discussed below.

Application Field

3120-F311-P7T1-W19DG4-16A circuit breakers can be used in a variety of situations, such as:

• It can be applied in electrothermal load, motor and other inductive overload protection.
• It can be used as control switch for control circuit, protection circuit and distribution circuit.
• It can also be used for irregular overcurrent protection such as short circuit and leakage protection.
• It is also suitable for infrequent operation, such as line and equipment maintenance and other occasions.

Working Principle

3120-F311-P7T1-W19DG4-16A circuit breaker is composed of frame and operating mechanism mounted on and connected with the frame. The electrical connection is made with the external input and output terminals of the frame. The circuit breaker is operated by rotating the knob to ON and OFF positions. This is done by activating the free sliding lever of the frame to mechanically move an armature connected to the switch contacts.

When the 3120-F311-P7T1-W19DG4-16A circuit breaker is OFF, the contacts remain closed and the current flows through it. When there is an overload or short circuit, the armature is activated which causes the moving contacts to trip and open. This stops the flow of current and protects the connected circuit from damage. After the overload is cleared, the armature and contacts can be reset by pressing the reset button.

3120-F311-P7T1-W19DG4-16A circuit breakers provide an effective solution for regulating and controlling current flow in multiple circuits, where it is important to ensure a durable and reliable operation. The circuit breakers are designed to be low maintenance and require little service or attention.

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