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Contactor Required

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  • 07-02-2011 9:15pm
    #1
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,591 Mod ✭✭✭✭


    I am looking for a contactor with the following:

    3 x NC main contacts rated for 40A up to 600VAC
    1 x NO auxiliary contact rated for 1A
    1 x NC auxiliary contact rated for 1A (nice to have but not essential)

    Coil voltage 230VAC

    Dose anyone know where I would get one? The main contacts being normally closed makes it a little different from the norm. I need this to ensure that it fails safe.

    Thanks in advance!


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    #2
    M cebee
    Closed Accounts Posts: 4,431 ✭✭✭M cebee


    out of interest what's it for


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    #3
    beanie10
    Closed Accounts Posts: 466 ✭✭beanie10


    Go to your nearest electrical wholesaler and ask for a 4 pole 40 amp NC contactor, hager is a good make.
    I think hager do a 2 pole 20 amp NC NO contactor which if you connect this coil to 4 pole coil it wil act as an auxillary contact,ie join the 2 A1 and 2 A2.


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    #4
    DublinDilbert
    Registered Users Posts: 5,379 ✭✭✭DublinDilbert


    Get an industrial automation contractor from the likes of schnider or merlin green. You can clip on auxiliary contacts for your extra 1A contacts.


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    #5
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    beanie10 wrote: »
    Go to your nearest electrical wholesaler and ask for a 4 pole 40 amp NC contactor, hager is a good make.
    I think hager do a 2 pole 20 amp NC NO contactor which if you connect this coil to 4 pole coil it wil act as an auxillary contact,ie join the 2 A1 and 2 A2.

    Yea but if you want fail safe setup its best to have the aux contacts mechanically attached to the main one, as one contactor could fail independent of the other when using 2 seperate ones, unless failure of one would not matter.


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    #6
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    Sounds like the type of contactor used for emergency lighting central test units. You can get N/C contactors with clip on auxilary contacts anyway.


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    #7
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    Could electrically interlock them and do it that way alright though beanie10. All depends on what the exact application is.


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