CNKW1系列智能型万能式断路器(以下简称断路器)，是本公司设计、制造的新型断路器之一。适用于交流50Hz，额定工作电压 400V，额定工作电流630A~3200A的配电网络中，用来分配电能和保护线路及电源设备免受过载、欠电压、短路、单相接地等故障的危害，该断路器具有智能化保护功能，选择性保护精确，能提供供电可靠性，避免不必要的停电。

产品符合GB/T14048.2《低压开关设备和控制设备低压断路器》、  IEC60947-2《低压开关设备和控制设备:断路器》标准。

CNKW1 Series Intelligent Air Circuit Breaker (hereinafter called the circuit  breaker) is one of novel circuit breakers designed and made by us.

This circuit breaker is suitable used in the distribution network with rated  operational voltage 400V, rated working current 630A~3200A,AC 50Hz. for  distributing power and protecting line and power supply facility from damage  of many faults such as overload, under voltage, short circuit, single-phase earthing etc., it possess many advantages of intelligent protection functions,  precise discrimination protection to provide reliable power supply and avoid  unnecessary power cut.

■正常工作条件和安装条件　Conditions for normal working and installing

●周围空气温度上限值不超过+40C，且24h的平均值不超过+35℃  周围空气温度下限值不

低于一5℃;

●安装地海拔高度不超过2000m。

●大气条件

最高温度为+40C时，空气的相对温度不超过50%;在较低温度下可以有较高的相对湿度;

例如20C时达90%。对由于温度变化偶尔产生的凝露应采取特殊的措施。

●污染等级:3级;

●安装类别

断路器用于安装类别IV;辅助电路的安装类别出了欠电压脱扣器线圈，电源变压器初级线

圈与断路器主电路相同外，其余为Ⅲ↵。

●断路器应按使用说明书进行安装。断路器的垂直倾斜度不超过5º。

●The upper limit of ambient temperature does not exceed +40℃, and  the average value within

24h does not exceed +35'C, the lower limit is  not lower than -5℃.

●Altitude of installing place does not exceed 2000m.

●Atmospheric condition:

When the maximum temperature is +40C, the relative humidity does not  exceed 50%;the lower the temperature, the higher the relative humidity,  for example at +20C, the relative humidity may be up to 90%, a special  measure may be adopted for occasional condensation.

●Degree of pollution: 3- class.

●Installing category:

Category IV for the circuit breaker, under voltage tripping coil, primary  coil of power transformer of secondary circuit; l for others

The installation of circuit breaker shall observe the application  instruction, the vertical inclination of circuit breaker shall not exceed 5º.