Contactor with auxillary contacts

  1. Hi,

    i want to make automatic on/off the 3 phase pump with float switch and 3 phase contactor(with auxillary contacts) for my tank.

    i have,
    1. contactor with auxillary contacts(3 phase contactor , a1,a2 coil voltage 220volts, no and nc)
    2. Float switch(single phase)
    3. with this i want to put Manual On/Off switch for pump(no , nc)

    i want the connection details, can anyone help?
     
  2. jcsd
  3. dlgoff

    dlgoff 3,136
    Science Advisor
    Gold Member
    2014 Award

  4. Please refer to attached page and following descriptions.

    F1: Fuses
    Q11:Contactor or automatic star-delta starter
    F2: Overload relay with reclosing lockout
    F8: Float switch 1-pole (circuit: pump full)
    S1: Changeover switch (MANUAL-OFF-AUTO)
    F9: Float switch 1-pole (circuit: pump full)
    M1: Pump motor a Cable with float, counterweight, pulleys and clamps
    b :Storage tank
    c: Pressure pipe
    d :Centrifugal (or reciprocating) pump
    e :Outlet
    f :Suction pipe with filter
    g: Water-failure monitoring by means of a float switch
    h: Well


    -----------------------------------------------------------------
    Creative thinking is enjoyable, Then think about your surrounding things and other thought products. http://electrical-riddles.com
     

    Attached Files:

Know someone interested in this topic? Share a link to this question via email, Google+, Twitter, or Facebook

Have something to add?