Star Delta Overload Positioning

[Anonymous user]

Hi,

I have a project to replace 2 old star delta starters for newer contactors and overloads (3x LC1D65AP7 & LRD350 etc). In the existing system the overload is on the star contactor (KM2) side and I haven't seen this before.

Would there be any operational reason for this or could this be a error on the origional manufactures part? Are there any instances where it is required to have the overload  on the star side?

The starter is operating a smoke extract fan incase of fire. 

Kind Regards

Michael

[NathanChiam · Accepted solution]

Hi @Anonymous user 

Possible to share the motor kilowatt rating, control panel site photo or control panel drawing? 

Kind Regards
Nathan Chiam