产品名称:  BZZ51系列防爆转换开关（ⅡB、ⅡC）
 
适用范围 Application 
1区、2区危险场所。                                        
ⅡA、ⅡB、IIC类爆炸性气体环境。
注：要求IIC类时注明.
Can be used in Zone 1 and Zone 2 dangerous places.     
Can be used in IIA、IIB、IICgroup explosive atmosphere.
Notice:Please note if need IIC grade needed.
型号含义 Main implication
 
产品特点 Features
■铸铝合金外壳,表面喷塑.                                            ◆ The shell is of diecasted AI-alloy with plastic-sprayed surface.
■内装转换开关,用于电流60A以下的电气线              ◆ Inside is mounted conversion switch,used as power swtch to 
■路中,作为电源引入开关,并可控制电动机起                 controln motor,adjust speed,convet direction in the system of
   动、变速、停止、换向等.                                              not more than 60A.
■钢管或电缆布线均可.                                                 ◆ Suitable for steel pipe and cable.
■符合GB3836-2000,IEC60079标准要求.                     ◆ Suitable for GB3836-2000,IEC60079 standard request.

 主要技术参数 Main technical parameters
               产品型号              额定电压（V）                额定电流（A）              防爆标志         电缆外径（￠,mm）
                Type                    Rated voltage               Rated current              Ex-mark            Cable's outer  diameter
--------------------------------------------------------------------------------
           CBZK-10/□                                                     10
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           CBZK-25/□              220/380                          25                         Exde II Bt6            10-14
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           CBZK-60/□                60                                60                         *Exde II Ct6           18-22
外形举例 Outline example
 

   型号 Type          A          B          C           D       备注 Remark
 CBZK-10/□      132       215      115       98                    
 CBZK-25/□      185      240       160      130          IIB
 CBZK-60/□      224      372       165       型号 Type          A          B           C          D            E           F        备注 Remark
      CBZK-10/□       153        132        110        -           230        114                    
      CBZK-25/□       214        190        164      113        360        186               IIC
      CBZK-60/□       330        308        210      190        450        176