This product conforms to the standard of JB tin 9661-1999.This product USES the IP40 protection grade that IEC114 sets, when all doors and guard plate are closed, or when the door is opened and the function unit is moved out of position, all can reach the corresponding protection grade, so as to ensure personal safety.

The product is equipped with reliable grounding system and protection circuit, and all functional units can break the short circuit current according to the specified performance requirements.The incoming line element has three protection features.Therefore, the reliability of power supply and the safety of equipment and system can be guaranteed.

All functional units can be connected with PC cable board (programmable controller) or microprocessor through the interface, which can be used as the execution unit of the automatic control system. According to the needs of users, functional units and function combinations of other contents can also be provided. This product is suitable for ac 380V and 50Hz circuits.

GCK系列电动机控制中心， 主要是由一些组合式电动机控制单元， 和其它功能单元组合而成。这些单元以上下重叠的方式安装在封闭的金属柜体内。 用设置在柜体上方的水平母线，将每个柜体联结在一起，同一柜体的功能单元则并联在垂直母线上。柜体共分水平母线区、 垂直母线区、 电缆区和设备安装区等四个互相隔离区域，功能单元分别安装在各自的小室内，当任何一个功能单元发生事故时，均不影响其它单元，防止事故扩大。

Delta each cabinet can separate main and auxiliary circuit isolation transformer, auxiliary circuit operating power supply for 50Hz, 220V;The signal power supply is 50Hz and 6Va

Delta by the main switch with three sections (instant, short delay and overload) protection, for and the next level of the main switch (with instantaneous and overload two sections of protection) with the cancellation of an instant section, to avoid tripping.And has the self - technology, no self - throwing and switching devices for selection.

Horizontal bus with single bus section and not section two, when the use of single bus section, bus switch also has self - cast, no self - cast and switching devices.

Delta motor control circuit has short circuit instantaneous, overload, under voltage release and break bale protection.

The communication contact in each functional unit operates silently and has energy saving function.At the same time, there is a delay (greater than 0.3s, less than 0.5s) release when the power supply disappears.Therefore, if no motor is installed, the respective starting relay can be restored within 0.3s (reclosing or standby power source time is less than 0.3s) to ensure the motor to continue running.

Delta feeder main switch with instantaneous and overload protection, when the user needs, can be installed leakage protection.

Delta lighting and household electrical circuit main switch with instantaneous, overload and leakage protection, this circuit especially in the electric drill, portable grinder and other mobile electrical power supply.

The current circuit contains ammeter, active and reactive watt-hour meter.Ammeter and ammeter can be installed or not in 250A or above feeding circuit.Other circuits larger than 37kW or 60A are fitted with ammeters.A light and alarm device can be installed in case of accident.

△主要电器性能符合国际电工委员会IEC标准和美国电气制造商协会NEMA标准。