contactor

  1. David1977m

    Can someone explain what this link is in this contactor drawing?

    This is in the level 3 science material handout. I know how a contactor work and asked my tutor what the link is, he looked at it and said he doesn’t know. Can someone please explain what it is please.
  2. A

    Contactor not latching

    Hi all. Is it too early to wish everyone a happy Christmas?😅 Looking for a little bit of help regarding a contactor. I got a call to look at a 230v heavy duty mixer/blender in a busy hospital kitchen. It has stop/start buttons and a contactor within the appliance itself. Contactor is a Teco...
  3. S

    Electric heaters contactor wiring question

    Hi , I have been tasked with putting 4 , 2kw panel heaters in a portacabin . I plan on wiring four 16a radials to each circuit ( fused spur at each heater). These will be controlled by a 24/7 time clock. Back at the CU. My question is to do with the contactors . I was planning on...
  4. S

    Contactor wiring with Nest thermostat

    Hello, I'm trying to get a contactor to work with a nest thermostat to activate an oil filled heater rather than a boiler. I wired permanent live and neutral to the two poles at the top of the connector (1+3), switched outputs to the bottom (2+4) then the common and demand lines from nest to...
  5. 3

    Using a proving unit to check for dead before removing this contactor. What do I probe on to ? Can someone please describe the tests i.e L1 -Earth.

  6. D

    Safety Contactor

    Afternoon all, I need some clarification regarding the use of a safety contractor and whether we can classify the safety contractor as a point of isolation. We have a control panel that requires inserting a castell key into the HMI unit to activate it. When we remove the castell key from the...
  7. 3

    Contactor. Proving dead . 3 phase .

    When working in a control panel. If I needed to replace a 3 phase contactor do I need to carry out a 10point check to prove dead on just the mains isolator. Or do I need to 10point check the mains isolator and then another 10point check on the contactor before removing. Many thanks
  8. B

    Wiring an off on switch into a Contactor for electric motor?

    I have a sawbench motor that needs an on/emergency off switch fitted, have the hylec on/off switch and a contractor 240V coil with NC contacts. Any advice on how to wire it up? Please see attached photos. Can’t seem to get my head around it and failing to make it work on the on off buttons...
  9. A

    Contactor for carbon mat under floor heating

    I'm after some advice please, I have carbon mat underfloor heating throughout my bungalow, each room has its own thermostat and are fed via a fused spur , these make virtually no sound, whereas my living room is a much larger area of around 40m2 and has its own thermostat and is fed from up in...
  10. M

    Can someone explain how these storage heaters were wired via the contactor?

    Been round to a house to quote to replace some storage heaters for new panel heaters and came across a strange (to me at least) way of wiring the old storage heaters via a contactor in the board, as usually I see their own off peak consumer unit which powers up at night via economy 7. From the...
  11. S

    Contactor wiring, break ring circuit through a stop button

    Hi guys , I have to break a ring circuit through a contactor with an emergency stop button .. just want to double check my wiring in the diagram is correct .. haven’t done much of this sort of work so any feedback is appreciated.
  12. K

    External Lights through timer and contactor via photocell

    Hello all, I know this is very simple but I would like some advice please. I am installing a new circuit to feed 5 external floodlights. It is to be controlled by a digital timer with volt free contacts through a 2 pole contactor wired with the existing photocell which also does a couple...
  13. Z

    Wiring diagram for 3 phase contactor start up

    Hi all, I have two three phase sanding machines that both have there own contactor start up. Both work fine. I have connected a dust extractor to them both. That also has its own contactor start up ad works fine. Its also 3 phase. How can I wire the the extractor to be triggered by either...
  14. J

    Contactor wiring help

    Hello, I’m need some advice on how a contactor is wired please and where the neutral go. I’m told it is connected to eco 7 and controls 3 heaters in a domestic flat. It stopped working after an electrician did something on a different circuit in the consumer unit. The contactor is an Eaton...
  15. Raj0089

    Solution needed!!!!…I used a Contactor instead of an ATS to connect 2 power sources (main and ups) for power redundancy

    I used a Contactor instead of an ATS to connect 2 power sources (main and ups) for power redundancy and the output is connect to a Dell server. i.e, if main power is lost contactor will changeover to ups power and there should be continuous power supply for the dell server… but i have a...
  16. C

    Contactor that heats up

    Hi guys I bought an Hager Esc463s contactor, that seems to me it heats up too much? Under no load, just connecting the coil, it heats up to about 50 Celsius, ambient temperature 30 Celsius. Is this normal? Do the contactor coils heat up that much? It is not defective, as i sent it back, and...
  17. W

    Contactor connections

    Does it matter what side you connect your supply and load on a 4 pole contactor?? Basically the only place I could fit the contactor was underneath the DB do my supply had to come in the bottom, and there wasn’t a lot of room within the enclosure for 16mm tails so I connected them into the...
  18. D

    contactor single phase L3 used as a pilot light

    Using a three phase contactor but in single phase so just live and neatural using L1 and L2 . Is it okay to hook up a pilot light on L3 terminal so when contactor is pulled in L3 becomes engaged hence pilot light turning on. I dont want to know about aux contact because I will be using that for...
  19. D

    sizing up mcb and a contactor

    I have a servo drive that is rated 10AMP. It then has a second rating refered to as it's Peak current : 30AMP 1) Do you size a MCB using the Peak current rating or the standard rating? 2) Again when choosing a contactor would you go for one closest to it's peak current rating or standard...
  20. R

    Ufh contactor wiring advice please

    Evening all, Doing a bit of forward planning for an extension with possible electric ufh. i Have worked out room will need 25m2 split between 2 matts 15 and a 10. 150w per square meter matts. I work out as about 16.3 amps in total. Only one stat so a contractorwill have to be fitted.. if...
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