Microswitch - 2 Terminal

This is a simple 2-terminal microswitch, with a 36mm actuator. This switch has a great 'clicky' sound to it, and a nice tactile feel.

  • Max 3A 125/240VAC
  • 2 mounting holes
  • Long mechanical operating life* 0.63 x 1.1"
  • Weight: 5g

Microswitch - 2 Terminal Product Help and Resources

Button and Switch Basics

May 7, 2013

A tutorial on electronics' most overlooked and underappreciated component: the switch! Here we explain the difference between momentary and maintained switches and what all those acronyms (NO, NC, SPDT, SPST, ...) stand for.

Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

1 Electrical Prototyping

Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
See all skill levels


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Sofia / about 12 years ago / 2

    Can we get a data sheet fo rthis please.

  • Member #502493 / about 10 years ago / 1

    Does anyone know the size of the mounting holes?

  • rlankenau / about 12 years ago / 1

    Can anyone recommend a connector to use on these switches? Or, lacking a solid recommendation, what are the dimensions of the leads?

  • scrappy64 / about 13 years ago / 1

    Anyone have any comments about weather resistance of switch in an outside application? Appears to be pretty well sealed with the exception being the openings to prevent range of motion of the moving parts.

  • laserhawk64 / about 13 years ago / 1

    It looks to be similar to the three-terminal version, here:
    I've uploaded their dimensional drawing of that switch to Imageshack (to avoid leeching), here:
    I hope that this proves useful.

  • MisterFuzzy / about 13 years ago / 1

    What's its thickness?

  • DeadTom / about 13 years ago / 1

    Oops, sorry should have looked at the pics....

    • vputz / about 13 years ago / 1

      DeadTom (or others coming here later...)
      I bought a few of these for CNC limit switches not realizing that limit switches are normally NC rather than NO (which these are).
      However, these are easy to pry apart with a fingernail and small screwdriver; there is actually a small tab connected to the NC position, so these are really three-terminal microswitches but the NC terminal is essentially clipped flush with the case. I swapped the two terminals (the small metal tabs easily slide out of the case)and so far it seems to be working fine as an NC switch now.

      • ThinkerT / about 12 years ago / 1

        Thanks for your comment! That's what I was planning to use them for! Are they effective?

  • DeadTom / about 13 years ago / 1

    Is this a normally open switch or normally closed?

  • Sam Lanzo / about 14 years ago * / 1


  • wayland / about 14 years ago / 1

    is this momentary?

  • wassabi / about 14 years ago / 1

    Wasn't blue, but worked great otherwise. Lever is great for all sorts of applications.

Customer Reviews

No reviews yet.