Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

pressure-sensitive switch question

pressure-sensitive switch question

pressure-sensitive switch question

Could someone shed me some light on how a pressure-sensitive switch works? What I am trying to do is to replace a pressure-sensitive switch with a regular switch. The pressure-sensitive switch has 3 wires comes out (Blue, Blue, Yellow) and my regular has two wire (yellow[ground] and blue[hot]).  The switch is for DC power.

RE: pressure-sensitive switch question

It is a switch that change state at a pre set value of pressure, you need to know, if your old swith is sigle pole double through i.e. normally wire 1 is connected to wire 2 then when activated, wire 1 goes to 3 or the extra wire is earth.
One important thing is snap action, the pressure switch will snap with spring like action from one state to another, the new switch may not have that and the turn on or off may pass through a non desireable state of not really "ON" not really "OFF" which may burn the contacts due to arcing.
If pressure level is not critical, you can do with a spring and some trials.

Maged A. Mohamed

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close