Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
SERIES 71
.5-.75" Diameter, 1/4 Amp
FEATURES





0.125" Diameter Shaft–Styles A and MA (and sealed versions) Rear Views–Style A, B, MA, MB
(and sealed versions)
36° Angle of Throw
Terminal Detail
Note: 


DIMENSIONS: Standard and Military 


30° Angle of Throw


0.250" Diameter Shaft–Styles B and MB (and sealed versions)
 Approx. Approx.
No. of Dimension Dimension Weight No. of Dimension Dimension Weight
Decks A B Grams Decks A B Grams
       
       
       
       
       
       
Angle C

































C
L
C
L
































C
L 
C
L 













 

Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
DIMENSIONS: Metric 
36° Angle of Throw
Terminal Detail
Rear Views
4mm Diameter Shaft–Style E and ES
 Approx.
No. of Dim. Dim. Weight
Decks A B Grams
   
   
   
   
   
   
   
   
   
   
   
   
Angle C









C
L
C
L






















30° Angle of Throw








Note: 



30° Angle
of Throw
36° Angle
of Throw
Switch is Viewed From Shaft End and Shown in Position No. 1.

CIRCUIT DIAGRAMS: Standard, Military and Metric
    
 






C
L








C
L
C
L








C
L





C
L




C
L



 

Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
SERIES 71
.5-.75" Diameter, 1/4 Amp, PC Mount
FEATURES







36° Angle of Throw
Note: 


 Dimension ADimension ADimension B Approx. Dimension A Dimension B Approx.
No. of Standard Military All Weight No. of Standard Standard Weight
Decks Style Style Styles Grams Decks Style Style Grams
        
        
        
        
        
        


DIMENSIONS: Standard and Military 
0.125" Diameter Shaft: Styles AF and MAF (and sealed versions) Rear Views: Styles AF, BF, MAF, MBF
(and sealed versions)


 

30° Angle of Throw
0.250" Diameter Shaft: Styles BF and MBF (and sealed versions)



















C
L







C
L


























C
L
C
L
C
L






























 C
L
C
L



















 C
L
C
L













 






C
L















Angle C

Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches




 





C
L













C
L
C
L
C
L






DIMENSIONS: Metric 
4mm Diameter Shaft: Style EF and ESF Rear Views
30° Angle of Throw


36° Angle of Throw
 Approx. Approx.
No. of Dim. Dim. Weight No. of Dim. Dim. Weight
Decks A B Grams Decks A B Grams
       
       
       
       
       
       

Note: 

















C
L
C
L



C
L C
L
















C
L
C
L
C
L C
L




CIRCUIT DIAGRAMS: Standard, Military and Metric PC Mount




30° Angle
of Throw
36° Angle
of Throw
Circuit is Viewed From Shaft End and Shown in Position No. 1
  



C
L
 




C
L

 




C
L
 


C
L
Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
SERIES 71: PC Board Pattern 





        

Number of Poles Common Terminal
Per Deck Hole Location

 


30° Angle of Throw 36° Angle of Throw
SERIES 71: PC MOUNT ACCESSORY

          

1/8" and 1/4" Diameter Shaft Styles

Metric Mount Styles

All Styles Except 71BT







 












 







C
L








C
L











PART 71C2054


PART 71C2053





C
L











PART 71C2111
Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches

No. of Dimension Dimension
Decks A B
  
  
  
  
  
DIMENSIONS: Standard and Military 
    

Rear View
Style BT

CIRCUIT DIAGRAMS
Circuit is Viewed From Shaft End
and Shown in Position No. 1


STYLE 71BT: PC Board Pattern
Including Integral Front Plate
Standoffs
36° Angle of Throw










C
L C
L

 




C
L
 


C
L





























C
L
C
L

SERIES 71
.5-.75" Diameter, 1/4 Amp,
Process Sealed
FEATURES



































C
L
C
L
C
L
























Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
SERIES 71
0.5 to 0.75" Diameter, 1/4 Amp,
Concentric Shaft
FEATURES


CIRCUIT DIAGRAMS: Solder Lug Terminals
DIMENSIONS 
Solder Lug Terminals: Style C Rear Views


Terminal Detail
30° Angle of Throw
Switch is Viewed From Shaft End and Shown in Position No. 1.

30° Angle
of Throw
    
36° Angle
of Throw
 
 Approx.
Weight
Sec. A Sec. B Dimension A Dimension B Grams
    
    
    
    
    
    
    
    
    
Angle C
No. of Decks
Note: 


36° Angle of Throw





C
L
C
L





































































 





C
L


C
L











C
L








C
L



C
L



C
L


ADD-A-POT SWITCHES

Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
Switch is Viewed From Shaft End and Shown in Position No. 1.

DIMENSIONS 
PC Mount: Style CF


 Approx.
Weight
Sec. A Sec. B Dimension A Dimension B Grams
    
    
    
    
    
    
    
    
    
No. of Decks



CIRCUIT DIAGRAMS: PC Mount Terminals
   
36° Angle of Throw
30° Angle of Throw
30° Angle of Throw
Rear Views
Note: 









































C
L
C
L
C
L










C
L


































 C
L
C
L
 




C
L

 




C
L
 


C
L
  



C
L
36° Angle of Throw



















 C
L
C
L



Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
SPECIFICATIONS
Military Qualification MIL-DTL-
3786/39

    
      
      
      



     
  
      


      
       

SPECIFICATIONS: Materials and Finishes




      






      

       



Military Shaft and Panel Seal


     
      
      
     

     
      



       




Materials and Finishes
Standard Style
Cover:

Base and Deck Separator:

Rotor Mounting Plate:
Bushing:
Through Bolts and Nuts, Shaft and Rear
Support Plate, Stop Pins and Stop Arm
(All Others):
Shaft, Stop Plates, Stop Arm (71BT):

Detent Rotor: 


Detent Balls:
Detent Springs:
Rotor Contact:

Base Contacts, Common Plate and
Terminals:


Front Support Plate (71 BT only):

Interdeck Seal (71 BT Only):
Extension:
Mounting Hardware:    

        





Materials and Finishes
Military Qualified
Cover, Base and Deck Separator:

Rotor Mounting Plate:
Bushing:
Through Bolts and Nuts, Shaft Extension,
Lockwashers, Shaft and Rear Support
Plate, Stop Pins and Stop Arm (All Others):

Detent Balls:
Detent Springs:
Rotor Contact:

Base Contacts, Common Plate and Terminals:


Detent Rotor:   

Mounting Hardware:
     

        
  




Additional Hardware:
       




       

     

Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
SPECIFICATIONS: Electrical Ratings, Others
Standard
Military
Electrical Ratings
General
Charts:     


       








Cycles:
      

Voltage:




















  
  















  






  







MILITARY
STANDARD




















  
  















  






  







MILITARY
STANDARD




















  
  















  






  







MILITARY
STANDARD




















  
  















  






  







MILITARY
STANDARD
Electrical Ratings
Standard Style
      

Contact Resistance:  

Insulation Resistance:  


Voltage Breakdown: 

Current Rating:    

       
       
    


Meet the Following Requirements of MIL-
DTL-3786:



Electrical Ratings
Military Style
      

Qualified to the following MIL-DTL-3786/39
circuit values:    




      





     








Contact Resistance:

Insulation Resistance:  

Dielectric Strength:  
     

 



     
       
      

    





Additional Characteristics
Standard and Military Styles
Rotational Torque:


Contacts:    
      

Shaft Flat Orientation:

Terminals:     


Extended Studs:     
 
       


Stop Strength: 
Mounting Bushing Strength:  

Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
ADJUSTABLE STOPS
Set and Reset Stops to Limit Rotation
Form, Fit, Function Equivalent to Fixed Stop Styles







  





   

Fixed Stop Adjustable Stop
Style Substitution
 
 
 
 
 
 
 
 
SHAFT AND PANEL SEAL


          








Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
C
L















1/8" and 1/4" Diameter Shaft Switches





   






PART NO. 12C1087-1

ACCESSORIES: Non-Turn Washers 
PART NO. 50J1066


PART NO. SHH694-5


4mm Diameter Shaft Switches
Non-Turn Washer





.250 ± .003
(6,35 ± 0,08)
.060 ± .001
(1,52 ± 0,25)
.400
± .005
DIA.
(10,16
± 0,13) 90° ± 1°
.125
± .005
(3,16
± 0,13)
.015
(0,38)
RADIUS
MAX.
.025
± .001
(0,64
± 0,03)
C
L














C
L














Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
Multi-Deck Rotary Switches
   
   
   
   
  
  
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   













  
  
  
  
  
  
  
  
  
  
  
  
  





Style Choices Angle of No. Of Poles Positions Shorting Or
Basic Style With S/P Seal Adj. Stop Throw Decks Per Deck Per Pole1 Non-Shorting
CHOICES AND LIMITATIONS: Series 71

     


       







       


      

       operative


 F     
C
      
C
      
      
      



Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Rotary Switches
Multi-Deck Rotary Switches
ORDERING INFORMATION: Single Shaft Switches
Series
Style*: 
Angle of Throw:
Number of Decks:
71A30–02–1–12N–C
Stop Arrangement:


Type of Contacts:
Positions Per Pole:

Poles Per Deck:
* All rotary switches that are required to have military designated markings and testing adhering to MIL-DTL-
3786 are to be ordered by specifying the military part number identified on the appropriate slash sheet.
ORDERING INFORMATION: Concentric Shaft Switches
Entire Switch
Series and Style:
Angle of Throw:
Switch Section A (Front Switch)
Number of Decks:
Poles Per Deck:
Positions Per Pole: 
Type of Contacts:
Stop Arrangement:


71C362110NC–320 2S
Switch Section B (Rear Switch)
Stop Arrangement:


Type of Contacts:
Positions Per Pole:
Poles Per Deck: 
Number of Decks:
Available from your local Grayhill Distributor.
