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Amphenol Nexus Technologies manufactures a wide variety of push-pull and momentary switches for multiple markets and applications. Many of the switches can be incorporated with our connectors for Customers have come to rely on our design capabilities and prefer the tactile feel of our quality switches.
In addition to the MIL-S-8805/3, or MS25089, switches, Amphenol Nexus Technologies makes a number of custom switches to meet a wide variety of design needs.
Our switches are used in many military and commercial applications including:

  • Military and commercial aircraft
  • Avionics
  • Ground vehicles
  • Naval systems
  • Ruggedized communications systems
  • Command systems
  • Soldier systems
  • Industrial applications
Rating: 10 amps at 115 vac (Resistive load)5 amps at 115 vac (Inductive load)3 amps at 115 vac (Lamp load)
DC Rating: 10amps at 28 vdc (Resistive load)5 amps at 28 vdc (Inductive load)3 amps at 28 vdc (Lamp load)
Type 7 Contact Configuration: Ratings are ONE HALF amperage loads shown above.
MechanicalLife: 500,000 cycles
Action: Momentary
Snap or Push-Pull (as specified)
Plunger Travel: .085″ +/- .015″
Series 20 & 30 Operating Force: 3 to 5 pounds momentary1/2 to 2 pounds’ push-pull
Series 22 & 32 Operating Force: 2 to 3 pounds
200 Series Weight: .050 pound maximum
Case and Adapter: Aluminium alloy, 2011-T3, anodized in accordance with MIL-A-8625
Plunger and Button: Glass-filled nylon or nylon in accordance with ASTM D4066
Body Insulation Diallyl phthaliate in accordance with MIL-M-14
Terminals: Threaded 2-56 NC-2B for use with hardware or solder type connection
Terminal Hardware: Solder-type wire terminals, with terminal mounting screws and lockwashers, supplied with each switch.
Mounting: Switch with mounting adapters C,F,G or H supplied with a 5/8″-24 UNEF-2B nut and internal tooth lockwasher. Basic 200 Series and 300 Series switches supplied with a 1/2″-32 UNEF-2B nut and internal tooth lockwasher.
300 Series Special: Additional types of mounting, button styles, colours, and other variations are available on special order

Nexus Switch Range

Mounting Switch Action Button Colour Contact 1 Contact 2 Contact 3 Contact 4 Contact 5
A Momentary Black MS25089-1A MS25089-2A MS25089-3A MS25089-4A MS25089-5A
NX301AB1B NX302AB1B NX303AB1B NX304AB1B NX305AB1B
Red MS25089-1AR MS25089-2AR MS25089-3AR MS25089-4AR MS25089-5AR
NX301AB1R NX302AB1R NX303AB1R NX304AB1R NX305AB1R
B Momentary Black MS25089-1B MS25089-2B MS25089-3B MS25089-4B MS25089-5B
NX301BB1B NX302BB1B NX303BB1B NX304BB1B NX305BB1B
Red MS25089-1BR MS25089-2BR MS25089-3BR MS25089-4BR MS25089-5BR
NX301BB1R NX302BB1R NX303BB1R NX304BB1R NX305BB1R
C Momentary Black MS25089-1C MS25089-2C MS25089-3C MS25089-4C MS25089-5C
NX301CB1B NX302CB1B NX303CB1B NX304CB1B NX305CB1B
Red MS25089-1C MS25089-2C MS25089-3C MS25089-4C MS25089-5C
NX301CB1R NX302CB1R NX303CB1R NX304CB1R NX305CB1R
D Push-Pull Black MS25089-1C-1 MS25089-2C-1 MS25089-3C-1 N/A
NX301CB3B NX302CB3B NX303CB3B
Red MS25089-1CR-1 MS25089-2CR-1 MS25089-3CR-1
NX301CB3R NX302CB3R NX303CB3R
E Momentary Black MS25089-1E MS25089-2E MS25089-3E MS25089-4E MS25089-5E
NX301EB1B NX302EB1B NX303EB1B NX304EB1B NX305EB1B
Red MS25089-1ER MS25089-2ER MS25089-3ER MS25089-4ER MS25089-5ER
NX301EB1R NX302EB1R NX303EB1R NX304EB1R NX305EB1R
F Momentary Black MS25089-1F MS25089-2F MS25089-3F MS25089-4F MS25089-5F
NX301FB1B NX302FB1B NX303FB1B NX304FB1B NX305FB1B
Red MS25089-1FR MS25089-2FR MS25089-3FR MS25089-4FR MS25089-5FR
NX301FB1C NX302FB1C NX303FB1C NX304FB1C NX305FB1C
Push-Pull Black MS25089-1F-1 MS25089-2F-1 MS25089-3F-1 N/A
NX301FB3B NX302FB3B NX303FB3B
Red MS25089-1FR-1 MS25089-2FR-1 MS25089-3FR-1
NX301FB3R NX302FB3R NX303FB3R
G Momentary Black MS25089-1G MS25089-2G MS25089-3G MS25089-4G MS25089-5G
NX301GB1B NX302GB1B NX303GB1B NX304GB1B NX305GB1B
Red MS25089-1GR MS25089-2GR MS25089-3GR MS25089-4GR MS25089-5GR
NX301GB1R NX302GB1R NX303GB1R NX304GB1R NX305GB1R
Push-Pull Black MS25089-1G-1 MS25089-2G-1 MS25089-3G-1 N/A
NX301GB3B NX302GB3B NX303GB3B
Red MS25089-1GR-1 MS25089-2GR-1 MS25089-3GR-1
NX301GB3R NX302GB3R NX303GB3R
H Momentary Black MS25089-1H MS25089-2H MS25089-3H MS25089-4H MS25089-5H
NX301HB1B NX302HB1B NX303HB1B NX304HB1B NX305HB1B
Red MS25089HR MS25089-2HR MS25089-3HR MS25089-4HR MS25089-5HR
NX301HB1R NX302HB1R NX303HB1R NX304HB1R NX305HB1R
Push-Pull Black MS25089-1H-1 MS25089-2H-1 MS25089-3H-1 N/A
NX301HB3B NX302HB3B NX303HB3B
Red MS25089-1HR-1 MS25089-2HR-1 MS25089-3HR-1
NX301HB3R NX302HB3R NX303HB3R
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