低壓抽屜柜又稱抽屜式開關柜具有較高的可靠性、和互換性，目前生產的開關柜，多數是抽屜式開關柜。它們適用于要求供電可靠性較高的工礦企業、高層建筑，作為集中控制的抽屜。今天帶大家了解低壓抽屜柜的結構原理。

Low voltage drawer cabinets, also known as drawer type switchgear, have high reliability and interchangeability. Currently, most of the switchgear produced is drawer type switchgear. They are suitable for industrial and mining enterprises and high-rise buildings that require high power supply reliability, as drawers for centralized control. Today, I will introduce you to the structural principles of low-voltage drawer cabinets.

　　低壓抽屜柜電路原理圖構成：

The schematic diagram of the low-voltage drawer cabinet consists of:

　　1、主電源電路一部分：便是開關電源到電機大電流量根據的途徑。關鍵由隔離開關、接觸器主接觸點、熱繼器或綜合保護器等電氣元器件構成。

1. Part of the main power circuit: it is the path from the switching power supply to the motor for high electrical flow. The key is composed of electrical components such as isolation switches, main contact points of contactors, thermal relays or comprehensive protectors.

　　2、控制回路一部分：便是對主電源電路電流量接通、斷開的操縱。由接觸器的電磁線圈及輔助觸點、汽車繼電器的電磁線圈及接觸點、熱繼器或綜合保護器輔助觸點、切換開關、按鍵、信號指示燈、速率電源開關、拉繩開關、跑偏開關等元器件構成。

2. A part of the control circuit is the manipulation of the current flow of the main power supply circuit to turn on and off. Composed of electromagnetic coils and auxiliary contacts of contactors, electromagnetic coils and contact points of automotive relays, auxiliary contacts of thermal relays or comprehensive protectors, switching switches, buttons, signal indicator lights, speed power switches, rope switches, deviation switches, and other components.

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This article is carefully provided by Shandong MNS low-voltage drawer cabinet for you. If you want to learn more, please click on our website: http://www.bjzmxm.cn We will answer you with the greatest enthusiasm!