Control components  
                                 ( Φ22/ Φ25/Φ30) | 
                             
                          
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          | ,Operating heads dimensions  | 
         
       
      
      
        
          | ,Model designations  | 
         
        
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                |  Designation | 
                Signal  | 
                 Description | 
               
               
                 1.Mounting 
                   Hole | 
                T2  | 
                  Φ 22mm/ Φ25mm 
                 | 
               
               
                T3  | 
                  Φ 30mm  | 
               
               
                |  2.Type | 
                SS  | 
                 Knob operator 
                 | 
               
               
                SH  | 
                 Lever operator 
                 | 
               
               
                KS  | 
                 Key operator 
                 | 
               
               
                |  3.Shape | 
                R  | 
                 Round | 
               
               
                S  | 
                 Square | 
               
               
                |  4.Positions | 
                1  | 
                  | 
                 45<2-position | 
               
               
                2  | 
                  | 
                 90<2-position 
                     
                   
                     | 
               
               
                3  | 
                  | 
                 45<2-position 
                   Spring return from right  | 
               
               
                4  | 
                  | 
                 45<x2 3-position   | 
               
               
                5  | 
                  | 
                 45<x2 3-position 
                   Spring return from right | 
               
               
                6  | 
                  | 
                 45<x2 3-position 
                   Spring return from left  | 
               
               
                7  | 
                  | 
                  45<x2 3-position 
                   2-way spring return  | 
               
               
                 5.Key 
                   Withdrawable | 
                1  | 
                  | 
                 0.1key withdrawable  | 
               
               
                2  | 
                 0 key withdrawable  | 
               
               
                3  | 
                 1 key withdrawable  | 
               
               
                4  | 
                  | 
                 0.1.2 key withdrawable 
                 | 
               
               
                5  | 
                 0 key withdrawable  | 
               
               
                |  6.Lens colos 
                 | 
                R  | 
                 Red | 
               
               
                G  | 
                 Green | 
               
               
                B  | 
                 Black | 
               
               
                 7.No.of contacts 
                   Fitted | 
                1-4  | 
                 1-4 | 
               
               
                |  8.Type of Contact Blocks  Fitted  | 
                 | 
                 2-Position | 
                3-Position  | 
               
               
                A  | 
               
               
                1a  | 
                -  | 
               
               
                B  | 
                1b  | 
                -  | 
               
              
                C  | 
                1a1b  | 
                1a 0 
                    1a   | 
               
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