Model and its meaning

normal working conditions

环境温度不低于-5C，不高于+40C，日平均气温不超过35°C，当周围空气温度超出以上范围，用户可与制造单位协商；

海拔：安装地点海拔不超过2000m；

大气条件：在环境温度为+405'C时，大气的相对湿度不超过50%；在较低的环境温度以有较高的温度。月平均最低温度为205°C时，该月的平均**相对温度为90%，由于温度变化发生在产品表面上的凝露必须采取防护措施；

pollution level：3级；

安装类别：11川1I类；

控制电源电压的波动范围为：85%Us-110%Us。

Operation characteristics for motor control

Applicable categories: AC-42, AC-43, AC-44

用途和Scope of application

CPS系列控制与保护开关电器（以下简称CPS），主要适用于交流50Hz（60）、额定电压低于690V。工作电流小于125A以下的电力系统中接通、承载和分断正常条件下包括规定的过载条件下的电流，且能够接通承载并分断规定的非正常条件下的电流（如短路电流）。

The control protection switch has an exquisite appearance, powerful intelligent functions, accurate current trip setting, and is easy to install and use. It is especially suitable for electronic control systems such as pumps, fans, air conditioners, and fire lighting in modern buildings: metallurgy, coal mines, petrochemicals, and ports. , motor control and protection in the fields of ships, railways, textiles, etc., motor control center (MCC), especially intelligent electronic control system or MCC with high breaking capacity (power distribution control system requiring ICS to reach 80KA): single unit in a factory or workshop Motor control and protection, and remote control lighting systems.

Functions and features

The control protection switch adopts a modular single-product structure and uses MCU digital processing technology. An electromagnetic control system similar to a contactor can accept on-off operation instructions and control the main circuit to connect or disconnect. The main circuit contact group consists of dynamic and static bridge-type double-break point contacts, a grid arc extinguishing chamber and a current-blocking fast short-circuit release action mechanism. Each pole is independent of each other. It is equipped with a current-limiting fast short-circuit release and high breaking capacity. The arc extinguishing system realizes backup protection with high current limiting characteristics (current limiting coefficient less than 0.2). (The trip setting current cannot be adjusted and is only related to the frame grade, and the setting value is 161n ± 20%). When a short circuit occurs in the load, the release opens the main contact group with a rapid (2-3ms) impact, and at the same time drives the operating mechanism to cut off the control coil, causing all poles of the main circuit to be disconnected.

It has remote automatic control and local direct manual control functions;

It has panel indication and electromechanical signal alarm functions;

Coordinated time-current protection is also acceptable (inverse time, short-circuit short-delay and instantaneous three-stage protection are also acceptable);

It has many early warning and protection functions such as overcurrent, stalled rotor, short circuit, undercurrent, overvoltage, undervoltage, three-phase unbalance, and start delay (to avoid starting large current and distinguish it from overcurrent action time).

The monitor uses LED to display various operating and fault light status, and has voltmeter and ammeter functions;

Equipped with setting keys, movement keys, data keys, and reset keys. Various parameters can be set and queried: since the control and protection switches use the MCU's E2PROM storage memory technology to realize parameter setting, the set parameters are still stored in the MCU after power failure, and there is no need to set parameters when restarting;

It has fault memory function to facilitate fault query and analysis;

It has RS485 communication interface and open field bus (Mod Bus protocol, etc.), which brings convenience to user system integration and facilitates users to realize intelligent management;

Users can control and protect various motor loads and distribution loads by selecting functional modules or accessories according to their needs.

The main technical parameters

Main parameters of the main circuit

Shape and installation dimensions