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The main contacts of the low-voltage circuit breaker are closed manually or electrically. After the main contacts are closed, the free tripping mec...

● Ambient air temperature: ○ The upper limit of ambient air temperature is +40℃; ○ The lower limit of ambient air temperature is -5℃; ○ The average...

Molded case circuit breakers can automatically cut off the current after the current exceeds the trip setting. Molded case refers to the use of pla...