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塑料外壳式断路器 /Plastic Case Circuit Breaker

新特点 /New features

● 绝缘件采用高强度 DMC 不饱和聚酯玻璃纤维塑料，适当的提高了氢氧化铝含量的比例，提高了 产品的阻燃性能；
● 导电系统采用了先进的镀银工艺，增加镀银厚度提高产品的载流能力和散热性；
● 断路器附件选定符合国家标准的专业生产厂家。进一步提高产品的可靠性；
● 操作机构“三扣”( 锁扣、再扣、跳扣 )，采用先进的专业工艺，保证“三扣”的硬度和韧性；
● 进一步提高产品的可靠性和稳定性；
● 产品金属件采用环保电镀工艺，符合欧盟环保标准；
● 断路器按照其额定极限短路分断能力 (lcu) 的高低分为：L 型 ( 标准型 )、M 型 ( 较高分断型 )、H 型 ( 高分断型 ) 三类。断路器具有体积小、分断高、飞弧短 ( 部
分规格零飞弧 )、抗振动等特点；
● 本断路器可垂直安装 ( 即竖装 )，亦可水平安装 ( 即横装 )；
● 本断路器具有隔离功能，其相应的符号为： 。
● The high-strength DMC unsaturated polyester fiberglass plastic is used for the insulation, which appropriately increases the proportion of aluminum
hydroxide and improves the flame retardancy of the product;
● The conductive system uses an advanced silver plating process to increase the silver plating thickness to improve the current carrying capacity and
heat dissipation of the product;
● The circuit breaker accessories are selected by professional manufacturers that meet the national standards. Further improve the reliability of the
product;
● The operating mechanism "three buckles" (locking, re-buckling, jumper), using advanced professional technology to ensure the hardness and
toughness of the "three buckles";
● Further improve the reliability and stability of the product;
● The metal parts of the products are environmentally friendly and meet the EU environmental standards;
● Circuit breakers are classified into three types according to their rated limit short-circuit breaking capacity (lcu): L type (standard type), M type (higher
breaking type), and H type (high breaking type). The circuit breaker has a small size, high breaking, and short arcing It is characterized by zero-flying arc
and vibration resistance;
● The circuit breaker can be installed vertically (ie, vertically) or horizontally (ie horizontally);
● The circuit breaker has an isolation function, and the corresponding symbols are: .

正常工作条件 /Normal Working Conditions

● 周围介质温度：不高于 +40℃ ( 对常用产品为 +45℃ ) 和不低于 -5℃，且 24h 的平均值不超过 +35℃ ( 对常用为 +40℃ )；
● 安装地点：海拔高度不超过 2000m；
● 安装地点：空气相对湿度在最高温度为 +40℃时不超过 50%, 在较低温度下可以有较高的相对湿度，例如 20℃时达 90%；对由于温度变化偶尔产生
的凝露应采取特殊措施；
● 污染等级：3 级；
● 安装类别：断路器主电路及欠电压脱扣器安装类别为Ⅲ，其余辅助电路、控制电路安装类别为Ⅱ；
● 断路器能耐受潮湿空气、盐雾、油雾、霉菌、核辐射的影响；
● 断路器安装的最大倾斜度为 ±22.5°；
● 断路器在受到地震情况下 (4g) 能可靠工作；
● 断路器应安装在无爆炸危险和无导电尘埃、无足以腐蚀金属和破坏绝缘的地方；
● 断路器应安装在没有雨雪侵袭的地方。

● Ambient temperature: no higher than +40 ℃ (+45 ℃ for common products) and no less than -5 ℃ , and the average value of 24h does not exceed
+35℃ (usually +40℃ );
● Installation location: the altitude does not exceed 2000m;
● Installation location: The relative humidity of the air does not exceed 50% at a maximum temperature of +40℃ , and can have a relatively high relative
humidity at a lower temperature, for example, 90% at 20℃ ; occasionally condensation due to temperature changes Special measures should be taken;
● Pollution level: 3;
● Installation category: the main circuit of the circuit breaker and the undervoltage release are classified as III, and the other auxiliary circuits and control
circuits are installed in category II;
● The circuit breaker can withstand the effects of humid air, salt spray, oil mist, mold, and nuclear radiation;
● The maximum inclination of the circuit breaker installation is ±22.5° ;
● The circuit breaker can work reliably under earthquake conditions (4g);
● The circuit breaker should be installed in a place where there is no danger of explosion and no conductive dust, no enough corrosion metal and
damage to insulation;
● The circuit breaker should be installed in a place where there is no rain or snow.

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