229-3-27869-1

Circuit breaker is an essential device in electrical distribution systems, used for protection purpose at various voltage levels. Circuit breaker can be manually operated or automatically operated and are made in many different configurations and settings, depending on their application. In domestic or commercial applications, circuit breakers are commonly used as main switch, or fuse boxes.

The application field of modern circuit breakers extended to several different areas, ranging from industrial and commercial high voltage applications to home and commercial consumer units. The most common application field includes;

• Low Voltage Switchgear: This type of circuit breaker is mainly used in residential and commercial buildings. It can be located in fuse boxes or it can be mounted in distribution panels. Low Voltage Switchgear circuit breaker includes a large selection of different models, featuring different technologies and settings.
• Medium Voltage Switchgear: When the electrical power used in residential and commercial buildings is higher than 1000 volts, a medium voltage switchgear circuit breaker is used. This type of circuit breaker can be located on the switchgear, and it features high interrupting capacity and short circuit current capability.
• High Voltage Switchgear: When the electrical power used in industrial and industrial applications is more than 1000 volts, a high voltage switchgear circuit breaker is needed. This type of circuit breaker can be found in the higher voltage networks, and it features high interrupting capacity, as well as high insulation.

The code number 229-3-27869-1 indicates that the circuit breaker is a 3-pole circuit breaker, equipped with a rated voltage of 230 V AC and a rated current of 10 A. The rated current should not exceed 10 A, as it is a direct load connected to the supply circuit and the load will be too high to be operated reliably.

A circuit breaker is a mechanical device designed to protect electrical systems by automatically disconnecting circuits when excessive currents occur. The circuit breaker is designed to break a circuit current in the event of an overload or short circuit situation, and it is normally used for protection or isolation of circuits. When the system is overexerted due to too high of a current, the circuit breaker will trip, disconnecting the circuit and stopping the power flow.

The main principle of operation for a circuit breaker is based on the principle of thermal-magnetic tripping. This principle is composed of two mechanisms: the thermal mechanism, which is activated by excessive current, and the magnetic mechanism, which is activated by overload or short circuit.} In both cases, the circuit breaker acts by separating the contacts inside it, breaking the circuit and stopping the power flow.

The thermal overload mechanism activates in the case of an overload situation, when the current surpasses a determined threshold. In these cases, the circuit breaker operates by connecting bimetallic strips that open the circuit breaker when the current is too high. On the other hand, the magnetic overload mechanism is activated in the case of an overload or short circuit, when the current is too high, The circuit breaker uses electromagnets to open the circuit breaker when it detects an overcurrent situation.

In conclusion, the code 229-3-27869-1 indicates that the circuit breaker is a 3-pole circuit breaker with a rated voltage of 230 V AC and a rated current of 10 A. Circuit breakers are used in electric systems for protection purposes, using the principle of thermal-magnetic tripping to detect and disconnect an overcurrent situation.