Abstract: A clapper-type electromagnetic release for a miniature circuit breaker is characterized by including an armature, a magnet yoke, a coil, an iron core, a shaft, and an armature torsion spring. The iron core is mounted on the magnet yoke. The coil is sleeved on the iron core. The armature is mounted on the shaft and can rotate around the shaft. The armature torsion spring is mounted on the shaft. The armature torsion spring presses against the armature, so that the armature can be reset. In the clapper-type electromagnetic release for a miniature circuit breaker, by the rotation of the armature, the armature is not closed in absorption and the circuit breaker mechanism is not tripped within a specified current range; and when the specified current range is exceeded, the armature is closed in absorption and the armature claps a lock, so that the circuit breaker mechanism is tripped.

Abstract: A fixing and unlocking mechanism for a plug-in type circuit breaker includes a housing (1) A button (2) is mounted in a button slot (101) of the housing (1). The fixing and unlocking mechanism is characterized in that the housing (1) is provided with a locking mechanism (3) therein, so that the plug-in type circuit breaker cannot be unplugged from a mounting cabinet, and the housing (1) is further provided with an unlocking mechanism (4) therein, which can unlock the locking mechanism (3) to make the plug-in type circuit breaker is unplugged from the mounting cabinet.

Abstract: An open/closed indicating apparatus for a circuit breaker operating apparatus, comprising a button and an indicating element. The button is provided therein with a cavity. The indicating element is mounted within the cavity. The indicating element can rotate within the cavity. The button is provided thereon with an observation window. The indicating element can display different areas in the observation window while rotating. When a small number of gaps are provided between the indicating element and the housing, the impact on the angle of rotation of the indicating element is reduced, the indicating element can accurately indicate an open/closed state of a circuit breaker, and when a product is being fitted and assembled, a requirement on gap fitness is reduced for the assembly.

Abstract: A locking mechanism for a circuit breaker operation device includes a housing (1). A button (2) is mounted in a button slot (101) of the housing (1). The locking mechanism is characterized in that the housing (1) is provided with a locking member (3) therein, and the locking member (3) can lock or unlock the button (2). In the locking mechanism for a circuit breaker operation device, a locking member is added in the circuit breaker; only after a lock button is pressed, an operation button is pressed to close the circuit breaker; when the operation button is pulled out, the circuit breaker is disconnected; when the lock button is not pressed, the operation button is locked by the lock button, the operation button cannot be pressed down, the circuit breaker cannot be closed.

Abstract: A clapper-type electromagnetic release for a miniature circuit breaker is characterized by including an armature, a magnet yoke, a coil, an iron core, a shaft, and an armature torsion spring. The iron core is mounted on the magnet yoke. The coil is sleeved on the iron core. The armature is mounted on the shaft and can rotate around the shaft. The armature torsion spring is mounted on the shaft. The armature torsion spring presses against the armature, so that the armature can be reset. In the clapper-type electromagnetic release for a miniature circuit breaker, by the rotation of the armature, the armature is not closed in absorption and the circuit breaker mechanism is not tripped within a specified current range; and when the specified current range is exceeded, the armature is closed in absorption and the armature claps a lock, so that the circuit breaker mechanism is tripped.

Abstract: A fixing and unlocking mechanism for a plug-in type circuit breaker includes a housing (1) A button (2) is mounted in a button slot (101) of the housing (1). The fixing and unlocking mechanism is characterized in that the housing (1) is provided with a locking mechanism (3) therein, so that the plug-in type circuit breaker cannot be unplugged from a mounting cabinet, and the housing (1) is further provided with an unlocking mechanism (4) therein, which can unlock the locking mechanism (3) to make the plug-in type circuit breaker is unplugged from the mounting cabinet.

Abstract: An open/closed indicating apparatus for a circuit breaker operating apparatus, comprising a button and an indicating element. The button is provided therein with a cavity. The indicating element is mounted within the cavity. The indicating element can rotate within the cavity. The button is provided thereon with an observation window. The indicating element can display different areas in the observation window while rotating. When a small number of gaps are provided between the indicating element and the housing, the impact on the angle of rotation of the indicating element is reduced, the indicating element can accurately indicate an open/closed state of a circuit breaker, and when a product is being fitted and assembled, a requirement on gap fitness is reduced for the assembly.

Abstract: A locking mechanism for a circuit breaker operation device includes a housing (1). A button (2) is mounted in a button slot (101) of the housing (1). The locking mechanism is characterized in that the housing (1) is provided with a locking member (3) therein, and the locking member (3) can lock or unlock the button (2). In the locking mechanism for a circuit breaker operation device, a locking member is added in the circuit breaker; only after a lock button is pressed, an operation button is pressed to close the circuit breaker; when the operation button is pulled out, the circuit breaker is disconnected; when the lock button is not pressed, the operation button is locked by the lock button, the operation button cannot be pressed down, the circuit breaker cannot be closed.