×
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

Class II, Div I motors

Class II, Div I motors

Class II, Div I motors

(OP)
Hi,

I am trying to educate myself a bit on Class II, Div I motors and Ex rated motors in general for USA or NEMA land.

Can I ask a few general questions.

Is Class II, Div I similar to Zone 22.
Can Class II, Div I motors be driven by VSDs
I presume the VSD cannot be installed in the field and insulated bearings from frame 280 or equivalent up are required.

And good dos explaining the do’s and don’ts and recommendations would be great. Thanks

Feg



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