最便宜的钣金厂家机柜的深度 一般从400mm-800mm，根据柜内设备的尺寸而定，通常厂商也可以 定制特殊深度的产品，常见的成品19寸机柜深度为500mm、 600mm、800mm。19寸标准机柜内设备安装所占高度用一个特殊单 位"U"表示，1U=44.45mm。
由于它的防护等级比较 低通常它一般应用于供电连续性和可靠性要求较低的工矿企业， 作变电室集中供电用。4. 抽屉式开关柜：这类开关柜采用钢板制 成封闭外壳，进出线回路的电器元件都安装在可抽出的抽屉中， 构成能完成某一类供电任务的功能单元。功能单元与母线或电缆 之间，用接地的金属板或塑料制成的功能板隔开，形成母线、功 能单元和电缆三个区域。每个功能单元之间也有隔离措施。抽屉 式开关柜有较高的可靠性、安全性和互换性，是比较先进的开关 柜，目前生产的开关柜，多数是抽屉式开关柜。它们适用于要求 供电可靠性较高的工矿企业、高层建筑，作为集中控制的配电中 心。根据不同结构特征和用途，选择适合自己的配电柜非常的重 要。因为我们都不想买不合适自己的。
近年来电子机箱机柜的发展 一直在走上升趋势，因为它的使用范围越来越广，市场中所占的 比重也与日增高。但是人们对它的了解还有存在那么一点欠缺， 我们要根绝自己的需求购买符合自己要求的 电子机箱机柜。
下面我们有 针对性的介绍：1.动力、照明配电机箱机柜：封闭式的，并且常 常垂直安装这种配电柜。根据使用场合的不同，所应用的外壳防 护等级也有所不同。这种柜体主要应用于工艺现场的配电装置。3.固定面板 式开关柜：固定面板式开关柜又称开关板或者是配电屏。一般来 说它是一种有面板遮拦的开启式开关柜。下面有防护作用，背面 和侧面仍能触及带电部分，防护等级低。
电子机箱机柜尺寸中U的公 制是多少？我们这样解释：1U等于4.44cm。标准电子机箱机柜的 结构比较简单，包括了基本框架、内部支撑系统、布线系统、通 风系统这四大块内容。标准机箱机 柜根据组装形式和材料选用的不同，又被划分为很多性能 和价格档次。19寸标准电子机箱机柜外型有宽度、高度、深度三 个常规指标。虽然对于19寸面板设备安装宽度为465.1mm，但机柜 的物理宽度常见的产品为600mm和800mm两种。高度一般从0.7M- 2.4M，根据柜内设备的多少和统一格调而定，通常厂商可以定制 特殊的高度，常见的成品19寸机柜高度为1.6M和2M。
一般它主要应用于工矿企业生产现场的配电 装置中。2.防护式开关机箱机柜：防护式开关柜有称为封闭式开 关柜，除安装面外，其他所有的侧面都被封闭起来，它也是一种 低压开关柜。这种柜的开关保护和监测控制等电气元件，均安装 在一个用钢或绝缘材料制成的封闭外壳内，可靠墙或离墙安装。 柜内每条回路之间可以不加隔离措施，也可以采用接地的金属板 或绝缘板进行隔离。通常门与主开关操作有机械联锁。另外还有 防护式台型开关柜（即控制台），面板上装有控制、测量、信号 等电器。
How about the cabinet of the sheet metal manufacturer
The cheapest sheet metal manufacturer's cabinet is in general from 400mm-800mm, according to the size of the equipment in the cabinet, and usually the manufacturer can also customize the special depth of the product. The common 19 inch cabinet is 500mm, 600mm, 800mm. The installation height of the 19 inch standard cabinet is represented by a special unit "U", 1U=44.45mm.
Because of its low level of protection, it is usually applied to industrial and mining enterprises with low power supply continuity and reliability requirements, which is used for centralized power supply in substations. 4. drawer type switchgear: this type of switchgear is made of a closed shell made of steel plate. The electrical components in the circuit of the import and export are installed in the drawer that can be pulled out, and form a functional unit that can complete a certain type of power supply task. The function unit is separated from the bus or cable by the functional plate made of grounded metal plate or plastic, forming three parts of bus bar, function unit and cable. There are also isolation measures between each functional unit. The drawer type switchgear has high reliability, safety and interchangeability. It is a relatively advanced switchgear. At present, most of the switchgear cabinets are drawer type switchgear. They are applicable to industrial and mining enterprises and high-rise buildings which require higher power supply reliability, and are used as centralized control power distribution centers. According to the different structural features and uses, it is very important to choose the power distribution cabinet suitable for them. Because we don't want to buy our own.
In recent years, the development of electronic cabinet has been on the rise, because its use is becoming wider and wider, and the proportion of the market is also increasing. But there is still a lack of understanding about it. We need to eradicate our needs and buy the cabinet of electronic cabinet that meets our requirements.
Below we have targeted introduction: 1. power, lighting distribution cabinet cabinet: closed, and often vertical installation of this distribution cabinet. Depending on the occasion of application, the level of protection applied to the shell is also different. The cabinet is mainly applied to the power distribution device at the process site. 3. fixed panel switchgear: fixed panel switchboard, also known as switchboard or distribution panel. Generally speaking, it is a kind of open type switchgear with panel blocking. The protection function is below, and the charged part can still be touched on the back and side, and the protection level is low.
What is the metric of U in the size of the cabinet of the electronic cabinet? We explain this: 1U is equal to 4.44cm. The structure of the standard electronic cabinet is relatively simple, including four basic contents: the basic framework, the internal supporting system, the wiring system and the ventilation system. The standard chassis cabinet is divided into many performance and price grades according to the different form of assembly and material selection. The 19 inch standard electronic cabinet has three conventional indexes: width, height and depth. Although the installation width of the 19 inch panel device is 465.1mm, the physical width of the cabinet is usually two kinds of 600mm and 800mm. The height is generally from 0.7M- 2.4M, according to the number of equipment in the cabinet and the unified style, usually the manufacturer can customize the special height. The common finished 19 inch cabinet is 1.6M and 2M.
In general, it is mainly used in the distribution devices of the production site of industrial and mining enterprises. 2. protective switch cabinet cabinet: the protective switchgear is called a closed switchgear. Except for the installation surface, all the other sides are closed. It is also a low voltage switchgear. The electrical components, such as switch protection and monitoring control, are installed in a closed shell made of steel or insulating material, and installed on a reliable wall or from the wall. There is no isolation measure between each circuit in the cabinet, or the grounding metal plate or insulation board can be used for isolation. Normally, the door has a mechanical interlock with the main switch operation. There is also a protective switchgear (i.e. console), equipped with control, measurement, signal and other electrical appliances.
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