This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Cable run through isolator/ contactor

Hi


Just looking peoples opinions on the following. I have a motor to connect via dol starter and plan to do as follows. Conduit dropping down from steel trunking to rotary isolator, out of bottom of isolator into top of dol starter. However as the motor is in an adjacent room, the supply from the contactor to the motor has to go back up into the trunking to get to it. I plan to run this cable back up out of the top of the contactor and through the isolator and up the same conduit as the supply cables. This would mean that the isolator is being used for ‘through wiring’ which has been frowned upon. I don’t really want to have to run a separate conduit out of the contactor back up into the trunking. Does anyone see a problem with this plan?


Thanks


Peter

Parents

  • Chris Pearson:

    I have no problem with "through wiring" but I am inclined to wonder why the isolator is in a separate room. Note that it will need to be marked to indicate what it isolates i.a.w. 537.2.7.




    Very common scenario in many factories, all drives housed in an MCC motors scattered around the plant , with local isolation of course, and if installed correctly, labelled with relevant circuit ID

Reply

  • Chris Pearson:

    I have no problem with "through wiring" but I am inclined to wonder why the isolator is in a separate room. Note that it will need to be marked to indicate what it isolates i.a.w. 537.2.7.




    Very common scenario in many factories, all drives housed in an MCC motors scattered around the plant , with local isolation of course, and if installed correctly, labelled with relevant circuit ID

Children
No Data