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Circuit Breakers

A circuit breaker is an important safety device used in many industries to protect electrical equipment from short-circuit, overload, and other potentially dangerous conditions. Circuit breakers, also known as protective devices, are used to detect and protect circuits when an abnormally high electric current is detected. Circuit breakers are classified as either fuses or breakers. Fuses are designed to open under normal circumstances and are generally the most cost-effective option. Breakers are designed to be reset and can be used to detect and tripping long-standing or intermittent faults, although resetting a circuit breaker can be dangerous and is best left to qualified personnel.

0914882 Application Field and Working Principle

The 0914882 circuit breaker is an advanced, three-phase, miniature circuit breaker that provides protection against short circuit and overload conditions. This device is suitable for indoor (IP2X) in areas with low operating temperatures and can be used in both single-phase and three-phase systems. This circuit breaker is typically used in residential and light commercial applications such as air conditioning, motors, and lighting.

The operating principle of the 0914882 circuit breaker is based on thermal-magnetic trip characteristics. When the current rises suddenly, the built-in bimetal strip will instantly detect and react to the sudden rise in current. The bimetal strip then pushes the protective trip bar to contact the main contact and break the circuit. The integrated contact will then open the main contact and the circuit is thus disconnected from the power supply. When the overload persists, the electromagnetic trip will act and break the circuit.

The circuit breaker also has a single-pole, delayed trip setting. This delayed trip setting is adjustable, allowing the user to set the maximum tripping time before the trip is activated. Additionally, the 0914882 circuit breakerrated working voltage of 660V/AC per phase (for single-phase) and 220V/AC (for three-phase). This circuit breaker is suitable for use in air conditioning, motor, and lighting applications.

The 0914882 circuit breaker is equipped with an AM 200 quick make/quick breakage contact system. This contact system is designed to improve the mechanical and electrical performance of the circuit breaker. The AM 200 system achieves quick make and breakage time, and provides reliable high current switching. It also provides improved contact longevity, contributing to long life-span and reliability of the circuit breaker.

In conclusion, the 0914882 circuit breaker is an advanced miniature circuit breaker with reliable protection against short circuit and overload conditions. The AM 200 quick make/quick breakage contact system provides reliable switching and a long life-span of the product. The adjustable delayed trip setting allows users to customize the maximum trip time before the trip is activated, depending on their requirements. This circuit breaker is suitable for low temperature, indoor mechanical and electrical applications such as residential, air conditioning, motor, andlighting.

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