Rotary Wafer Switches

Switch TypeSpace Envelope Dia x Length (+ per add wafer)Max Poles Per SwitchIndexing AnglesMax Poles/Switching Per WaferRatingGeneral Specs (PDF Data Sheets for Download)
MU-MA31 x 241215°1 pole 2-24 ways50mA @MU-MA Data Sheet

Standard Contact Arrangements
(+11) 30°7 poles 2-12 ways300Vac/dc
  36°4 poles 2-10 ways500mA @
  45°1 pole 2-8 ways30Vac/dc
  60°6 poles 2-6 ways 
MU-MK40 x 241230°7 poles 2-12 ways150mA @

MU-MK Data Sheet


Standard Contact Arrangements

(+13) 45°1 pole 2-6 ways250Vac/dc
  60°6 poles 2-6 ways50mA @ 250Vdc
    500mA @
    30Vdc/ac
UB-MM46 x 20815°8 poles 2-24 ways50mA @

UB-MM Data Sheet

Standard Contact Arrangements
(+14)   300Vac/dc
    500mA @
    30Vac/dc
UB-ML    50mA @UB-ML Data Sheet



Standard Contact Arrangements
46 x 20810°1 pole 2-35 ways300Vac/dc
(+14) 20°8 poles 2-18 ways500mA @
    30Vac/dc
UB-MSD53 x 32830°4 poles 2-12 ways6 Amps @ 250VacUB-MSD Data Sheet
(+15) 60°4 poles 2-6 ways 
SL-MA31 x 13830°7 poles 2-12 ways50mA @

SL-MA Data Sheet


Standard Contact Arrangements


Index Mechanism Options
(+11) 36°4 poles 2-10 ways300Vac/dc
    500mA @
    30Vac/dc
HD-MK26 x 392030°7 poles 2-12 ways150mA @

HD-MK Data Sheet

Standard Contact Arrangements


Index Mechanism Options

(+13) 60°6 poles 2-6 ways250Vac/dc
  90°4 poles 2-4 ways50mA @ 250Vdc
    500mA @
    30Vdc/ac
HD-MSD32 x 531230°4 poles 2-12 ways HD-MSD Data Sheet
(+15) 60°4 poles 2-6 ways6 Amps @ 250Vac
  90°2 poles 2-4 ways 
J-MK18 x 401030°7 poles 2-12 ways150mA @

J-MK Data Sheet

Standard Contact Arrangements


Index Mechanism Options
(+13) 60°6 poles 2-6 ways250Vac (rms)
    50mA @ 250Vdc
    500mA @
    30Vac/dc
A-MA24 x 311030°4 poles 2-12 ways300Vac/dc

A-MA Data Sheet


Standard Contact Arrangements


Index Mechanism Options
(+11)   500mA @
    30Vac/dc
TC Ceramic90 x 67430°1 pole 2-11 ways3KVdc.250mATC Data Sheet
(+35)   300VA @ 20MHz
MU-31 x 24 30°  Index Mechanism Options
  36°Indexing Mechanism Only 
  45°  
  60°  
UB-46 x 20 10°Indexing Mechanism Only Index Mechanism Options
  15°  
  20°  
  30°  
  45°  
  60°  
SL-31 x 13 30°Indexing Mechanism Only Index Mechanism Options
  36°  
HD-  30°  

HD Data Sheet

Index Mechanism Options
26 x 13 60°Indexing Mechanism Only 
  90°  
J-38 x 11 30°Indexing Mechanism Only Index Mechanism Options
  60°  
A-25 x 7 30°Indexing Mechanism Only Index Mechanism Options

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The NSF Controls product experts are available to help you select the most suitable product to meet your specific requirements and, if required, will work with you to design and produce a customised solution. 

To find out more, please contact our specialist Design & Engineering Team +44 (0)1535 661144 or email info@nsfcontrols.co.uk 

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