HDZ47-63 small circuit breaker 18879983199

Also known as miniature circuit breaker, it is suitable for overload and short-circuit protection of AC/rated voltage/rated current to lines. It can also be used for infrequent operation conversion of lines under normal circumstances.
A small circuit breaker is composed of the following main parts:
Breaking contact connection. It consists of fixed contacts and movable contacts.
A device composed of a metal cylinder or an insulating cylinder, in which breakable contact coupling and arc extinguishing equipment and transmission devices are installed.
The transmission device of the moving contact.
Arc Equipment
When a small circuit breaker is commonly used to break a circuit, it mechanically separates the movable contact and the fixed contact of the small circuit breaker. When closing, the opposite mechanical movement is used to close the movable contact and the fixed contact. When making and breaking load circuits, arcs will occur between the fixed contacts and the moving contacts. The arc generated during the breaking process is much more severe than that during the closing process. When the breaking current is very large, especially when breaking a short circuit, the arc is very large and it is often very difficult to break the circuit.
Miniature circuit breakers have the characteristics of advanced structure, reliable performance, strong breaking capacity, beautiful and compact appearance, etc. They are mainly used in places with AC or below rated voltage and rated operating current. It is used for overload and short-circuit protection of lighting, distribution lines and equipment in office buildings, residences and similar buildings. It can also be used for infrequent on-off operation and conversion of lines.
Model and its meaning
br/> Main specifications
▲Type according to rated current,,,,,,,,,
. type,,.
▲According to the number of poles, circuit breakers are divided into single-pole, two-pole, three-pole and four-pole circuit breakers.
▲ According to the instantaneous tripping type, type, type, type.
Rated short-circuit breaking capacity
br/> Overcurrent protection characteristics
br/> The term cold state means that there is no load before the test, and it is conducted at the reference calibration temperature.
Tripping characteristic curve (according to /)
br/> Mechanical and electrical life
br/> Cross-sectional area of suitable conductors for wiring
br/> Appearance and installation dimensions
> Overall dimensions

Mounting guide rail dimensions

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