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. 
    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     
    
                              BZC51-D2K1(II型)
                二灯一开关挂式 Two lamps one switch,pendant 
    
                  BZC51-B1K1 G(III型)
           一表一开关挂式　One meter one switch,pendant                       BZC51-K2 G(III型)
                         二开关挂式　Two switches pendant 
    
          BZC51-B1D2K1  G(IV型)
       一表二灯一开关挂式 One meter,two lamps one switch,pendant       BZC51-A2D2k1  G(IV型)
 二钮二灯一开关挂式 Two buttons,mtwo lamps one switch,pendant  




    
            BZC51-A2K1  G(II型)
       二钮一开关挂式 Two buttons one switch.Pendant         BZC51-A2D2  G(II型)
        二钮二灯挂式 Two buttons two lamps,pendant 
    
          BZC51-A2B1  G(III型)
       二钮一表挂式 Two buttons one meter,pendant              BZC51-A2  G(I型)
                    二钮挂式 Two buttons,pendant 
     
        BZC51-A2B1D2  G(IV型)
       二钮一表二灯挂式 Two buttons one lamp,pendant                 BZC51-k1  G(I型)