供应BQ56系列防爆星三角起动箱ⅡB）

产品名称:  BQ56系列防爆星三角起动箱（ⅡB） 
 
适用范围Application  
1区、2区危场所。 
IIA、IIB类爆竹性气体环境. 
Can be used in Zone 1 and Zone 2one 2 dangerous places. 
Can be used in IIA,IIB group explosive atmosphere 
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型号含义Model implication



  
产品特点 Features   
该产品适用于3-95KW 三相异步电动机不频繁起动和停止. 
铸铝合金或钢板焊接外壳,表面喷塑. 
内装断路器,交流接触器,时间断电器,热继电器,电流互感 器,电压表,电流表,转换开关,指示灯. 
延时自动控制时间继电器(0-60秒内可调). 
适用于不间断长期工作制或反复短时工作制,在反复短时 工作制下的操作频率为30次/小时,两次边疆起动间隙不 小于90秒. 
具有过载,短路,断相保护等功能. 
可根据用户要求特制. 
钢管或电缆布线均可. 
45kw以下为铝合金壳体,45kw(含45kw)以上的为钢板焊 接壳体. 
符合BG3836-2000,IEC60079标准要求. 
Suitable for 3-95kw asynchronous motor to start and stop unfrequently. 
The shell is of diecaste Al-alloy or welded by steel plates with plastic-sprayed surface. 
Inside is installed with CB,AC contactor,time relay,thermal relay,CT,
Voltmeter,ammeter,conversion switch and indicatior. 
Delayed self-controlled relay (0-60s adjustable). 
Suitable for continuously work or short interval work,at short intarval
work its operating frequency is 30 ti