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TANK1 Series Intelligent Universal LV Vacuum Circuit Breaker has features of free maintenance, overload capability, and strong interrupter breaking ability, can achieve true zero arcing. The circuit breaker is suitable for environmental protection, and the service ambient temperature can be -40℃, the 2000 meters of altitude above sea level. Especially the workplace that air circuit breakers isn't suitable for, such as wind power generation, coal, chemical, metallurgical and other explosive industries, It is suitable for distribution in residential area with high security requirement.