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NAME： 矿用隔爆兼本质安全型真空电磁起动器 QJZ-120（80）/1140(660)SW
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Product Description
Parameters
特点
起动器具有过载、过流、相不平衡、漏电闭锁、短路、欠压、自动开停等保护功能，并可在不打开门进行参数整定。
1、起动器操作方式有两种：
远控：通过水位传感器用以对电动机进行起停控制;
近控：使用起动器本身的按钮，对电动机进行起停控制。
2、起动器具有手动紧急停止和换向功能。
3、起动器具有液晶显示功能，可显示：
1)三相电流，系统电压;
2)合闸运行，分闸待机;
3)过载、相不平衡、短路、漏电闭锁;
4)故障查询。
4、水泵自动开停保护，当水位升至高水位时，继电器应接通，水泵电动机起动，开始抽水;当水位降至低水位时，继电器应断开，水泵电动机停止工作，不再抽水。
主要技术参数
|
额定电压：AC1140V、660V |
最大输出电流：DC 120mA |
|
额定频率：50HZ |
极限分断能力：2.5KA |
|
额定工作电流：120A、80A |
隔爆形式：矿用隔爆兼本质安全型 |
|
最高输出电压：DC 12V |
工作制：长期 |
|
寿命与分断能力 |
机械寿命：300万次；电寿命：AC-3类别 30万次；AC-4类别 3万次 |
|
最大控制功率 |
在1140V，ηCOSΦ＝0.75时最大功率为150KW；在660V，ηCOSΦ＝ 0.75时最大功率为90KW |
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