float switch level control for 3 phase motor

Discussion in 'The Projects Forum' started by mztrordinary, May 25, 2016.

  1. mztrordinary

    Thread Starter New Member

    May 25, 2016
    3
    0
    Hi guys

    I want to turn a 3 phase pump on and off automatically with a float switch level sensor the motor is just a small 1kw motor controlled through a standard telemc contactor. I have attached links to the level switch i will be using along with the relay and relay base that i will be using too. i just need to know the connections or if possible and ideally a schematic of how to wire this in so the pump turns on at low level and stops at high level automatically.



    Thanks guys





    http://ie.rs-online.com/web/p/level-sensors-switches/0339730/













    http://ie.rs-online.com/web/p/non-l...573743D333533393136267374613D3033353339313626







    http://ie.rs-online.com/web/p/relay...573743D333533393636267374613D3033353339363626
     
  2. BR-549

    Well-Known Member

    Sep 22, 2013
    2,004
    394
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,564
    2,379
    Switching direct with a low voltage coil on the contactor as per the preceding link would be the simplest.
    BTW using the O/L's in the ground side of the coil as shown is considered an unsafe no-no now.
    Max.
     
Loading...