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
Free-Way Switch

Free-Way Switch

Manufactured by NSF Controls Ltd in the UK and available through selected suppliers

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You’re in safe hands

Providing BIG solutions

Big partnerships; BIG commitment. NSF Controls produces around 900,000 assemblies per annum from its UK site.

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