4435.0004

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Circuit Breakers: 4435.0004 Application Field and Working Principle

Circuit breakers are vital electrical components in any electrical system, as they are designed to prevent damage and catastrophic failure due to electrical faults and overloads. The Siemens 4435.0004 is one of the most commonly used circuit breakers in the industry, and this article will provide a comprehensive overview of its application field and working principle.

Application Field

The Siemens 4435.0004 is a 3-pole miniature circuit breaker that is applicable in electricity distribution systems with an AC frequency of 50/60 hertz. The AC voltage rating for this circuit breaker is 480Y/277V, and it is designed for a 30-amp current draw. The maximum short-circuit current rating for this device is 10 kA.

The maximum air switching capacity of the 4435.0004 is 26 kA, and it is suitable for indoor use in locations where the ambient air temperature is between -15 and 50 degrees Celsius. Furthermore, this device is rated for altitudes of up to 2000m, and it is designed for use with a type III coordination curve. The Siemens 4435.0004 can handle up to three poles, and it is capable of mounting in an electrical panel.

Working Principle

The Siemens 4435.0004 is a thermal-magnetic circuit breaker, which means it contains both a thermal and magnetic element. If an overload is detected, the thermal element will be activated first and it will shut off the electrical system. This will prevent the electrical system from being damaged by the overload.

If the overload is not rectified, the magnetic element will be activated and it will trip the circuit breaker. This means that the electrical system will be shut off permanently, protecting it from long-term effects of an overload. The thermal element and the magnetic element are manually reset, and this can be done with the push of a button.

Conclusion

The Siemens 4435.0004 is a versatile and reliable 3-pole miniature circuit breaker, and it is suitable for indoor use in AC voltage distribution systems. This device is designed for a 30-amp current draw, and it is rated for altitudes of up to 2000m. Furthermore, this circuit breaker contains both thermal and magnetic elements, and these can be used to protect the electrical system from overloads and short circuits.

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