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The FGV-12D series inflatable cabinet circuit breaker (with isolation belt grounding) is designed for various indoor environments, particularly those requiring high reliability and long-lasting performance. This circuit breaker is suitable for areas with an altitude of up to 2000 meters and an earthquake intensity of up to level 8. It operates effectively within a temperature range of -30℃ to +40℃, making it highly adaptable. Additionally, it performs reliably in environments where the relative humidity averages no more than 95% daily and 90% monthly. The device should not be used in environments subject to frequent severe vibrations or where steam, gases, chemical corrosion deposits, salt fog, dust, or dirt may significantly affect the mechanism’s performance. It is also unsuitable for installations with fire or explosion hazards.
The FGV-12D series circuit breaker is widely used in various industrial and commercial facilities requiring stable and efficient power control and protection. Its compact design saves space and simplifies installation and maintenance, making it suitable for use in a range of power equipment systems. Compliant with GB/T11022-2011 and GB/T1984-2014 technical standards for AC high-voltage circuit breakers, this breaker ensures safe and reliable operation within standard-compliant high-voltage power systems. It is particularly suited for power facilities that require long service life and low maintenance costs, such as distribution rooms, substations, and industrial manufacturing facilities.
When using the FGV-12D circuit breaker, ensure that the installation environment meets its design conditions, particularly avoiding harsh environments that may adversely affect its performance, such as areas with chemical corrosion deposits or severe vibrations. During transportation and storage, the device should be protected from extreme temperatures or humidity conditions and should be regularly inspected and maintained to ensure long-term safe and reliable operation. Adhering to relevant operating protocols is key to ensuring the device’s performance and extending its service life.
Technical Specification | |||
1 | Rated frequency | Hz | 50 |
2 | Rated current | A | 630 |
3 | Rated short-time withstand current | kA | 20/25 |
4 | Rated peak withstand current | kA | 50 |
5 | Rated short circuit duration | s | 4 |
6 | Rated short-circuit breaking current | kA | 50 |
7 | Rated operating sequence | 0-0.3S-CO-180S-CO | |
Mechanical parameters | |||
1 | Circuit breaker main circuit resistance | μΩ | ≤40 |
2 | Overtravel | mm | 2-3 |
3 | Opening distance | mm | 8.5±1 |
4 | bounce | ms | ≤2 |
5 | Average opening speed | m/s | 1.2±0.2 |
6 | Average closing speed | m/s | 0.6±0.2 |
7 | Three-phase opening at different times | ms | ≤2 |
8 | Three-phase closing at different times | ms | ≤2 |
9 | Theoretical Operation | cycles | 10000 |
The FGV-12D series inflatable cabinet circuit breaker (with isolation belt grounding) is designed for various indoor environments, particularly those requiring high reliability and long-lasting performance. This circuit breaker is suitable for areas with an altitude of up to 2000 meters and an earthquake intensity of up to level 8. It operates effectively within a temperature range of -30℃ to +40℃, making it highly adaptable. Additionally, it performs reliably in environments where the relative humidity averages no more than 95% daily and 90% monthly. The device should not be used in environments subject to frequent severe vibrations or where steam, gases, chemical corrosion deposits, salt fog, dust, or dirt may significantly affect the mechanism’s performance. It is also unsuitable for installations with fire or explosion hazards.
The FGV-12D series circuit breaker is widely used in various industrial and commercial facilities requiring stable and efficient power control and protection. Its compact design saves space and simplifies installation and maintenance, making it suitable for use in a range of power equipment systems. Compliant with GB/T11022-2011 and GB/T1984-2014 technical standards for AC high-voltage circuit breakers, this breaker ensures safe and reliable operation within standard-compliant high-voltage power systems. It is particularly suited for power facilities that require long service life and low maintenance costs, such as distribution rooms, substations, and industrial manufacturing facilities.
When using the FGV-12D circuit breaker, ensure that the installation environment meets its design conditions, particularly avoiding harsh environments that may adversely affect its performance, such as areas with chemical corrosion deposits or severe vibrations. During transportation and storage, the device should be protected from extreme temperatures or humidity conditions and should be regularly inspected and maintained to ensure long-term safe and reliable operation. Adhering to relevant operating protocols is key to ensuring the device’s performance and extending its service life.
Technical Specification | |||
1 | Rated frequency | Hz | 50 |
2 | Rated current | A | 630 |
3 | Rated short-time withstand current | kA | 20/25 |
4 | Rated peak withstand current | kA | 50 |
5 | Rated short circuit duration | s | 4 |
6 | Rated short-circuit breaking current | kA | 50 |
7 | Rated operating sequence | 0-0.3S-CO-180S-CO | |
Mechanical parameters | |||
1 | Circuit breaker main circuit resistance | μΩ | ≤40 |
2 | Overtravel | mm | 2-3 |
3 | Opening distance | mm | 8.5±1 |
4 | bounce | ms | ≤2 |
5 | Average opening speed | m/s | 1.2±0.2 |
6 | Average closing speed | m/s | 0.6±0.2 |
7 | Three-phase opening at different times | ms | ≤2 |
8 | Three-phase closing at different times | ms | ≤2 |
9 | Theoretical Operation | cycles | 10000 |
