You are not registered yet. Please click here to register!

plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!

Go Back - Interactive Q & A > - Interactive Q & A > LIVE PLC Questions And Answers

PLC training tools sale

Thread Tools Display Modes
Unread August 23rd, 2019, 01:10 AM   #1

Adenitz is offline
Join Date: Feb 2010
Location: tir
Posts: 29
Choosing appropriate motor protection switch

Hello experts,

can you suggest me what would be appropriate motor protection switch for the following motor (used on a valve drive):

3 phase 400V, P = 0,25 kW, I = 1.0A, cos fi = 0.6, S2-15 (Short-time duty S2 - 15 min), 1400 o/min, Insulation class: F

Thank you.

Last edited by Adenitz; August 23rd, 2019 at 01:15 AM.
  Reply With Quote
Unread August 23rd, 2019, 08:02 AM   #2

gclshortt is offline
gclshortt's Avatar
Join Date: Dec 2014
Location: Ontario
Posts: 2,966

The above threads may help you out.
Connect with us on Facebook:
  Reply With Quote
Unread August 23rd, 2019, 11:13 AM   #3

kallileo is offline
Join Date: Jun 2008
Location: Thessaloniki, Macedonia, Hellas
Posts: 218
You need short circuit and overload protection for your motor.
The operating/nominal current of the motor is 1.0 A so in your case I would use a thermal-magnetic motor circuit breaker like Schneider GV2ME06 1-1.6A which protects against both short circuit and current overload faults.
Set it to 1A and you should be ok.
Also check if your motor has built-in over temperature protection.
  Reply With Quote
Jump to Live PLC Question and Answer Forum


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Topics
Thread Thread Starter Forum Replies Last Post
level switch vs pressure switch Charbel LIVE PLC Questions And Answers 10 December 12th, 2014 10:19 AM
PLC Industrial Layer 3 Switch tgr9004 LIVE PLC Questions And Answers 9 July 29th, 2014 09:29 AM
Switch in combination with a timer pdupreez LIVE PLC Questions And Answers 2 February 21st, 2014 03:08 PM
Machine Guarding - Deadman Switch khurley LIVE PLC Questions And Answers 9 January 31st, 2007 07:54 AM
Control Logix ENET & Hirschmann switch Vlad_M LIVE PLC Questions And Answers 4 December 1st, 2004 07:55 AM

All times are GMT -5. The time now is 06:29 AM.