MNS low-voltage drawer cabinet is favored by many power engineering customers for its advantages of convenient maintenance, many group outgoing circuits and small land occupation. Although there are many manufacturers in the field, the technology and production capacity are mixed. Many small and medium-sized switchgear plants do not master the specifications and standards related to the machinery and equipment in the power distribution room because of their weak technical foundation. There are risks in the design and installation of drawer cabinets and switchgear. In addition, the customer's operation and maintenance management is poor, and the components in the cabinets are aging slowly with the increase of operation time, It will cause a high incidence of accidents of high-voltage switchgear and even major accidents such as burning loss.

MNS低压抽屉式开关柜适用于交流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点，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 low-voltage drawer type switchgear is applicable to the three-phase five wire power supply system with AC 50 (60) Hz, rated working voltage of 400V and 660V, rated current of 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 points to control power generation, transmission and distribution, power conversion and power consumption equipment, The reactive power of the main bus is compensated through the capacitor compensation cabinet. Comply with national standards: gb7251.1 low voltage switchgear and iec60439 low voltage switchgear and control equipment.

正常使用条件：

Normal service conditions:

1、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℃。

1. The ambient air temperature shall not be higher than + 40 ℃ and not lower than - 5 ℃, and the average temperature within 24h shall not be higher than + 35 ℃.

2、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。

2. The relative humidity of the surrounding air shall not exceed 50% when the temperature is + 40 ℃, and there is a higher relative humidity at a lower temperature, such as 90% at + 20 ℃. However, considering that moderate condensation may occur occasionally due to the change of temperature.

3、户内使用，使用地点的海抜高度不得超过2000m。

3. For indoor use, the sea height of the place of use shall not exceed 2000m.

4、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。

4. It shall be installed in a place without violent vibration and impact and without corrosion of electrical components.

好的产品成就好的服务，好的企业成就好的产品，MNS低压抽屉柜坚持为客户提供的服务，详情请继续关注我们的网站：http://www.tongyuhengcheng.com

Good products make good services, and good enterprises make good products. MNS low-voltage drawer cabinets insist on providing customers with high-quality services. Please continue to pay attention to our website for details: http://www.tongyuhengcheng.com