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contactor

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  1. S

    Installing underfloor heating (warmup under wood panels) with contactor

    Hi just want to ask i been instaling heating mats before, but now I need to install 3 mats for large kitchen/ dining, total 36 square meters of mats, each mat have 1680 Watts, and this need to be 1 zone - on one thermostat, maximum I can connect to thermostat is 3600Watts, We run separate cable...
  2. J

    contactor wiring

    has anyone got a good clear diagram of how to wire communal lights through a contactor with a timeclock/photocell
  3. B

    Using a Contactor

    Have been advised by the Fire Officer that the supply to the stage area of our large club ( which supplies amplifiers etc for musicians) must be automatically isolated in the event of a fire alarm. At present they use a couple of 13A sockets which are on a ring main. I have no experience of this...
  4. D

    3 phase contactor not dropping out

    Hi folks here goes im replacing a contactor on a 3 phase sheet metal bending machine the old 1 is obsolite an was gave 1 that would do the same job the old 1 had termanals 33 an 34 new 1 dosent 33 had a red going in and a link to A2. i put the red into A2 and a link to 13 an its energising bet...
  5. L

    Induction hob and oven switching

    Hi All, As part of one of my jobs for NIC accreditation I'm fitting an induction hob (8kw) and double oven (>2kw combined) the customer has requested they have separate switches on the same plate but does not want the oven on a socket should they change specification at a later date, any advice...
  6. polo1

    Teleswitch advice

    Hi guys, Sorry about the quality of the picture. Note the connections outgoing from the teleswitch to the isolator. Can anyone confirm what the two supplies to the isolator from the teleswitch are for (the isolator out serves as the line supply to the heating contactor coil. See Post#4
  7. S

    Contactor voltage coil

    Hi Guys Can anyone tell me what the difference is between contactors that require 230v coil voltage and 400v coil voltage? We are swapping over a contactor serving a bank of lights. The original contactor was 230v and the one I accidently ordered was 400v and didn't start up on power up. Could...
  8. M

    Over load contactor its been awhile

    can some please guide me i have little problem the contactor stays on if push it in then fan runs but if i push the start button nothing happens it has been sitting in the garage for a year I have now installed but i may have a wire in the wrong place any tips would be very gratefull thank...
  9. T

    contactor

    Hello people Can any provide me a basic drawing of a contactor connected up does the neutrals have to go in supply side of contactor or can they all go on neutral back and a link from there to a2
  10. T

    contactor fed straight from dno meter.

    Any 1 ever seen a contactor wired from dno meter which has 1.5 coming out meter for economy 7 to switch contactor, have these meters got a fuse in them to protect the cables.
  11. T

    24a contactor 4 pole

    Hello every 1 I have never worked with contactors much so just want abit of info, ive come across a 24a 4 pole contactor for a heating system now what i want to know is, is its maximum switching load 24a or is the maximum load what the contactor can handle, it has 4 separate live conductors for...
  12. J

    Contactor to switch an oven

    Hi Guys, Apologies if this is a basic question for most of you, but i haven't had much if any experience with contactors. Basically we have been asked to quote to fit a timer to an industrial oven (63A) so it will switch on at 4am and warm up before the bakery opens so they can get on with...
  13. J

    Should I use a contactor or a relay?

    I have to design a unit which utilizes both 24V and 110V for lighting. We will supply these voltages by using a dual type transformer. The 24V will supply an alarm and heat tracing whereas the 110V will supply a lighting circuit. Should I install a contactor or a relay to protect from under...
  14. W

    Panel/Convector heater?

    Have a customer with no heating at all in 2 of her bedrooms ( No gas supply also ) both rooms are around 6 x 3 meters .. Any suggestions for a decent panel/convector heater that will heat these rooms adequately?
  15. M

    Contactor

    Hi all Im struggling to understand why we use contactors i know hoe they are wired and i know how they work, take a lighting circuit controlled by a contactor that needs more amps than a 6amp switch surely wudnt this trip the 6 amp mcb or am i lost all together

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