×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Non listed sensors in class 2 circuit permited?

Non listed sensors in class 2 circuit permited?

Non listed sensors in class 2 circuit permited?

(OP)
Hello,

we are using different types of sensors in our maschine.
encoders, light barriers etc.
Now we want to sell the machine in the USA.

We are now looking for UL-Listed/recognized parts. But we want to use also non listed parts.
Does the NEC permit the use of non listed/recognized sensors (24V), that are supplied from a class 2 supply.

The NEC describes in 725,2 Definitions:

"Due to its power limitations, a Class 2 circuit
considers safety from a fire initiation standpoint and provides
acceptable protection from electric shock."

Can we generally say, that components in class 2 circuit are not investigated.

Thanks for your help.

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!


Resources