×
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

FVC sizing

FVC sizing

FVC sizing

(OP)
Does anybody have a Table giving FVC starter sizes for various range of kW ratings ( heaters ) and also Lighting Transformers?
I am looking specifically at Siemens make ANSI design FVCs.

RE: FVC sizing

Sorry, but what does FVC stand for? Full Voltage Controller? Fixed Vacuum Contactor? Trying to guess but not getting there.

RE: FVC sizing

(OP)
Full Voltage Contactor comprising of a MCCB or Short circui+o/l protection and a contactor for the switching function............

RE: FVC sizing

That information is in the Siemens catalog, but I admit it can be a bit daunting to navigate if you are unfamiliar with it (and I work for Siemens so I should know). What country are you in? I have direct links to the US information but that doesn't show the kW ratings as readily (it's in there, but buried).

The problem is, if yopu are looking at IEC style contactors, the listings will be for the individual components, i.e. the contactors and breakers separately,ort as a combination starters with Motor Switch Protectors, (not MCCBs and only up to 100A). Once you get over 100A, you have to look at the individual components separately.

For North America, you can look at "combination starters" which do use MCCBs, but they are fpor motors only because they use Mag-Only MCCBs and therefore must have an Overload Relay. So again, for a contactor only, you are left looking at the contactors and MCCBs separately.

Let me know where you are and what size you need and I'll see what I can find for you in Siemen's on-line info.

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