产品概述 Product overview

MNS 型低压抽出式开关柜（以下称开关柜）是我公司参考了国外公司的 MNS 系列低压开关柜并加以综合改进后开发的，是目前国内较优良的低压抽出式开关设备。该产品均由标准化的、成系列的模块组成，并且抽屉具有可靠的机械联锁装置，使用户在使用时更安全、更可靠。 

本开关柜适用于交流 50(60)Hz、额定工作电压 400V、660V，额定电流 5000A 及以下三相五线制的电力供电系统，可用于发电厂、变电所、工矿企业、大楼宾馆、机场、码头以及广播电视等通信中心，来作为发电、输配电、电能转换及电能消耗设备的控制，并通过电容补偿柜对其主母线进行无功补偿。符合国标准：GB7251.1《低压成套开关设备》IEC60439《低压成套开关设备和控制设备》

MNS type low-voltage draw-out switch cabinet (hereinafter referred to as switch cabinet) is developed by our company after referring to the MNS series low-voltage switch cabinet of Company of Switzerland and making comprehensive improvement. It is currently a relatively advanced lowvoltage draw-out switch equipment in China. This product is composed of standardized and series modules, and the drawer has reliable mechanical interlocking device, which makes users safer and more reliable in use. 

The switch cabinet is suitable for a three-phase five-wire power supply system with AC 50(60)Hz, rated working voltage 400V, 660V, rated current 5000A and below. It can be used in power plants, substations, industrial and mining enterprises, buildings, hotels, airports, docks, radio and television and other communication centers to control power generation, transmission and distribution, power conversion and power consumption equipment, and perform reactive power compensation on its main bus through a capacitance compensation cabinet. Comply with national standards: GB7251.1 《Low Voltage Complete Switchgear》 IEC60439 《Low Voltage Complete Switchgear and Control Equipment》

正常使用环境 Normal operating environment

◇周围空气温度不高于 +40℃， 不低于 -5℃， 并且 24h 内其平均温度不高于 +35℃。 

◇周围空气相对湿度在温度为 +40℃时不超过 50％ ，在较低温度时有较高的相对湿度，如 +20℃时为 90％，但考虑到由于温度的变 

化有可能会偶然产生适度的凝露。 

◇户内使用，使用地点的海拔高度不得超过 2000m。 

◇应安装在无剧烈震动和冲击，以及不使用电器元件受到腐蚀的场所。 

◇ Ambient air temperature is not higher than +40℃ , not lower than -5℃ , and its average temperature within 24 hours is not higher than +35℃ . 

◇ The relative humidity of ambient air shall not exceed 50% at the highest temperature of +40℃ , and it shall be higher at lower temperature, such as 90% at +20℃ . However, it is considered that moderate condensation may occasionally occur due to temperature changes. 

◇ For indoor use, the altitude of the place of use shall not exceed 2000m m. 

◇ It shall be installed in a place free from severe vibration and impact and corrosion of electrical components.