产品名称:  BC51系列防爆操作柱（ⅡB）
 
 适用范围 Application
1区、2区危险场所.
IIA、IIB、类爆炸性气体环境.
Can be used in Zone 1and Zone 2 dangerous places.
Can be used in IIA、IIB group explosive atmosphere. 

  
型号含义 Model implication 
 
总单元含义 Applicatinon of chief part  
   
 

**单元含义 Application of first part                         第二单元 Application of second part 
 
第三单元 Application of third pqrt                         第四单元 Application of third part 
 

产品特点 Features
■ 铸铝合金外壳,表面喷塑.                                                            ◆ Al-alloy diecasted shell with plastic-sprayed surface
■ 内装万能转换开关、按钮、电流表（可按用要求                     ◆ Inside is mounted univeral changeover swith,button,ammeter（can mountother
     装其他仪表）、指示灯.                                                                          instruments according to user"s requirement）and indicator,etc.
■ 转换开关有30多种功能可由用户自由选择,可根据                  ◆ There are more than 30 functions of changeover switch available to be chosen
     要求特制.
■ 万能开关操纵机构经过优化设计,可以自动找正,能                 ◆  Can be customized according to user"s requirement.
     能保证转动灵活,无卡滞现象.
■ 电流表量程由用户指定.                                                              ◆  The ammeter"smeasuring range can be determinedby users.
■ 钢管或电缆布线均可.                                                                  ◆   Suitable for steel pipe and cable wiring.
■ 产品出厂铭牌上只体现总单元内容,名分单元代号                  ◆ The marker of product when ex-factory only reflect the content of chief part,
     为订货参数.                                                                                  ◆ The code of other parts is ordering parameter.
■ 符合GB3836-2000,IEC60079标准要求.                                      ◆  Suitable for GB3836-2000,IEC60079 standard request.
主要技术参数 Main te chnical parameters
     使用类别         额定电压（v）        额定电流 （A）        防爆标志         防护等级              防腐等级             时线口螺纹（G"）        电缆外径（￠,mm）
       Using sort       Rated voltage        Rated current          Ex-mark           Protection         Corrosion-proof          Inlet"s thread              Cable"s outer
                                                                                                                       category            Grade
--------------------------------------------------------------------------------
        AC-3              220/380                     10                     Exde II Bt6            Ip55                        Wf1                                1                        12-17       
        AC-4                                                                                 

订货举例 Notice if ordering
1 、一表一开关立式,开关代号为K,表量程为200/5应                            1 、One meter one switch vertictype,the code of the switch is K,one
        标注为:                                                                                                          meter the measuring range is 200/5
                   CBC51-B1K1L                                                                                                                               CBC51-B1K1L
                                B1-1（200/5）                                                                                                                                     B1-1（200/5）
                                K1-1A                                                                                                                                             K1-1A
2 、二钮一表二灯挂式,表量程为100/5,指示灯为220V                            2 、Two buttons one meter pendant type,two lamps one meter,the
      红绿各1个,2个按钮规格为一常开一常闭.标注为:                                    Meas wring range is 100/5,one red indiator,one green indicator,
                  CBC51-A2B1D2G                                                                            the voltage is 220V,two bottons are 1NO＋1NC.
                               A2-2I                                                                                                                                   CBC51-A2B1D2G
                               B1-1（100/5）                                                                                                                                       A2-2I
                               D2-1Rd/1Gd                                                                                                                                      B1-1（100/5）       
                                                                                                                                                                                          D2-1Rd/1Gd
按钮代号 Button code
                   代号 Code                                       I                             II                               III                             IV                          V
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               按扭触头型式                           一常开一常闭             二常开                     二常闭                     一常开                  一常闭   
              Form of button contact                1NO＋1NO                   2NO                            2NC                       1NO                      1NC

代号指示灯 Indicator Code
                              代号Code              a                b              c                d                   e
--------------------------------------------------------------------------------
                             电压Voltage（v）    12              24            36              220                380
--------------------------------------------------------------------------------

                            代号Code               R                 B                          Y                           W
--------------------------------------------------------------------------------
                            颜色 Color     红色red     绿色Green         黄色 Yellow        白色 White 

开关代号简要说明 Brief Instuction for switch code
   开关组合
   符号
 The code
 of switch
                        接触图
                  Chart of contact
             等效开关
            Equivalent
            switch  旋钮位置（实践表示定位
虚线表示自复位）
Rotary button"s position
real line denotes location
broket line denotes auto-
resetting         等效功能说明
     Instruction for
     equivalent function
      A       A.功能接线均与双按钮相同,
自动复位.
Functional wiring is the
button with auto resetting.
 
      B       B.功能与双按钮相同,起动复
位,增加了锁停档位,避免误操作
Functional wiringis the same as
button with auto resetting,add
"lock-stop"to avoid mistake operating.
     C       C.功能为2个带常开触点的按钮
自动复位,适合于高压电机控制
电路.或采用A功能面板.
Button with 2usually-open contacts
and auto-resetting,Suitable for
high-voltage engine control circuit
or function panel A. 
     D       D.小功率电源开关.
Mini-power switch
     E       E.功能与三钮相同,控制电机正反
转用,正,反起动位置自复位.
Function is the same as three buttons
buttons to control-conversion of FW&BW
starters can auto-reset.
     F       F.选择开关,中间带停止档位.
Selected switch with stop location in midst.
 
     G       G.相当于2个按钮和一个切换开关
装于一轴,在起动与停止之前均可
输出联络信号或监控信号
Be equol to mounting two buttons and one
change-over switch in one axe.Can output
contact signal or inspect signal beford
startin and stopping.
      H       H,多信号逐级传送,方向任意旋转.
Multi-signals transmit gradually
and conbvert in random.
      I       I.在H基础上增加了总信号传送功能.
Add function of chief-signal transmitting
on the base of H struchurd.
 

       J                 J.二位进级,逐级切换.
   Change-over gradually.
 
      K            K,切换开关
    Change-over switch.
      L           L.三极双掷选择开关
    Selected switch with tree poles
    and two launches.
      M           M,自动,手动,起动三位置转换开关
    起动自复位,起动后必须经过停止档位
    才能转向自动档位.
   Change-over switch with automtion
   hand,starting.Convert to automation
   through stop location.
     N          N,与M万能结构略有不同,起动后不经停
   止档位直接转向自动档次.
   Little different from m universal
   structure,it don"t pass stop location
   to automation location.
    O          O.起动为双触点带锁停功能,起动自复位.
   Double contacts for starting with
   lock-stopping and auto-resetting..
    P          P,停止为双触点,可分别代替A和C,起停,自
   动复位..
   Double contacts for stopping,to        substitude
A and Cfor starting,stopping and abuto-resetting.
    Q           Q 停止带双触点,带锁停功能,起动自复位.
    Double contacts for stopping,the
    same as Buniversal panelwith
    lock-stopping and auto-resetting.
     R          R,起,停均带双触点,起停均自动复位,同
   A万能面板.
  Doulbe for both starting and stopping
  The same as A universal panel with
  auto-resetting when starting and     stopping.
      S       S.起停前先传送一个联络信号.
Tramsmit a contact isgnal before
starting and stopping.

    T               T.起,停均带锁停档位功能,避
免误操作,不自动复位.
Equipped with lock-stop
location when starting and stopping.
Can"t autoreset to provide mistake operation.
 
    U        U.为双控选择开关
Double-control switch.
 
     V       V.电压换相测量转换开关.
Change-over switch for voltage
usually-opens,the left is as same
as the right
 
    W       W.左右一样的一个正常开自复位按钮.
One auto-reset button with
two usually-opens,the left is
as same as the right.
 
    X       X.为带2个2常开触点的自复位按钮
Two auto-reset buttons with two
usually-opens.
 
    Y       Y.为带4个常开触点的自复位按钮.
Auto-rest button with four usually-opens..
 
     Z       Z.电源程序开关,中间断开,左右均接近
可作消防开关.
Power-source programmed switch can
cut off in between and cut in both
the left and right which an be used
as extinctive switch.
 
    a-1        a-1.用于起动,点动混合电路.
For starting and inching the mixed
circuit.
 
   b-1       b-1.双联动开关.
Double starting switch.
 
    c-1       C-1. 急停按钮开关.
Emergency stopping switch.
 

 外形安装及举例 Outline example    
   
                              CBC51-D2K1（II型）
                二灯一开关挂式 Two lamps one switch,pendant
   
                  CBC51-B1K1 G（III型）
           一表一开关挂式　One meter one switch,pendant                       CBC51-K2 G（III型）
                         二开关挂式　Two switches pendant
   
          CBC51-B1D2K1  G（IV型）
       一表二灯一开关挂式 One meter,two lamps one switch,pendant       CBC51-A2D2k1  G（IV型）
 二钮二灯一开关挂式 Two buttons,mtwo lamps one switch,pendant 

   
            CBC51-A2K1  G（II型）
       二钮一开关挂式 Two buttons one switch.Pendant         CBC51-A2D2  G（II型）
        二钮二灯挂式 Two buttons two lamps,pendant
   
          CBC51-A2B1  G（III型）
       二钮一表挂式 Two buttons one meter,pendant              CBC51-A2  G（I型）
                    二钮挂式 Two buttons,pendant
    
        CBC51-A2B1D2  G（IV型）
       二钮一表二灯挂式 Two buttons one lamp,pendant                 CBC51-k1  G（I型）