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本产品适用于交流额定电压300/300V及以下电器、仪表、电子设备及自动化装置，本产品采用的标准与国际电工委员会IEC0227(1979）标准的規定相一致。
This product is fit for ac rated voltage 300/300V electric appliances, instruments and meters, electro—equipments and antomatic installations, dur standard for this product is based on the standard made by international electric commission IEC227(1979)and is exactly the same.
2.型号、名称Model and name
