contactor

  1. G

    communal lighting , contactor

    got a 240v ac set up for communal lighting in a small block of flats , call out was that outside lights not working , the contactor has 25mm incomer from db1 and 25mm outgoing to db2 incoming side also has 1.5mm t&e. i cant seem to find the operating device for the contactor any...
    • glasgospark
    • Thread
    • communal contactor lighting
    • Replies: 56
    • Forum: UK Electrical Forum
  2. S

    led and photocell.

    recentlly fitted 4x23w,1x50w flood,and 2x80w floods via a photocell outside. the photocell keeps failing after about 4 weeks and ive changed it twice already. does anyone know why as im confused. the cell is capable of switching 1000w so is easily suitable(so i thought).. thanks simon
    • simon07904
    • Thread
    • contactor electronic led photocell start
    • Replies: 4
    • Forum: UK Electrical Forum
  3. B

    schneider multi 9 contactor

    I feel like a dope for asking but can someone tell me if a 25 amp 4 pole schneider multi 9 contactor is rated at 25 amps per pole or 25 amps in total? Ive been having a look at the schneider characteristics page and still wasnt sure
    • barneybhoy
    • Thread
    • contactor multi schneider
    • Replies: 15
    • Forum: UK Electrical Forum
  4. B

    Noisy contactor

    Hello I have installed a 100amp contactor in a generator control system I have designed tested and installed its a simple basic design two 230v ac contactors controlled individually by 12v 250v contact relays (12v relay used to get away with a cat5 between shed and house) and to change it all...
  5. L

    Contactor Wiring District Pump

    Please can somebody advise how I connect a contactor. I have a single phase district pump feeding multiple properties 12Amp max. LNE I have a local switch fuse spur for pump. LNE It is switched from a Biomass controller (has a 3A supply). LNE I have not connected one before and do not want...
  6. B

    Sizing Contactor to control Photovoltaic DC

    I know this is a U.K. site but I'm hoping someone will be able to answer a qn. Recently I saw a that a company was producing a remote disconnect safety system for PV panels mounted on a roof.This is to disconnect the arrays automatically if the mains is disconnected or manually after a storm or...
  7. N

    three phase contactor

    Hi Guys, please can someone help with a little problem I have........ please see photos! I would like to add a push switch to bring a motor in to turn over an engine (on a dyno) and I would like to use the contactor pictured but cannot for the life in me make it work , the single breaker appears...
    • naughtybear
    • Thread
    • contactor phase three three phase
    • Replies: 17
    • Forum: UK Electrical Forum
  8. J

    Patio Heaters through contactor?

    Hi all, Had a customer who has 2x 1.5kw patio heaters. He is looking for these to be switched separately, in an ideal world this would be from a 2G Master seal switch. Now obviously the loading is an issue. I was thinking of maybe using 2x din rail contactors in an enclosure as the db is...
    • jthenderson
    • Thread
    • contactor heaters pat pat testing patio through
    • Replies: 5
    • Forum: UK Electrical Forum
  9. infinity

    Emergency stops for LAB sockets

    I have been tasked with installing emergency stop buttons at the doorways to a few labs, so in an emergency they can hit the stop button and it will kill the power to all the sockets in the room. Now the problem is they are all rings with the DB's some distance away. Had they been radials t...
  10. B

    Remote cooker switch?

    I don't suppose anyone knows of a remote cooker switch? i.e. actual wiring and switch can be hidden behind the cooker and controlled from a switch elsewhere? It will be on a 32A circuit. It needs to be relatively small, say fit in a 35mm 2G backbox sort of size so I suspect that rules out a...
    • brman
    • Thread
    • click contactor cooker other remote switch
    • Replies: 21
    • Forum: UK Electrical Forum
  11. uksparks

    Best place to buy a new contactor

    Hi, Just got to replace an old MEM Autoline 3 with a resistor pack inside, its about 50 odd years old, Just wondered if anyone knew of anywhere that's good on prices for these? Basically just want a new one, like for like, 50A 4 Pole. Thanks,
  12. A

    3 phase contactor advice

    http://www.google.co.uk/url?sa=t&source=web&cd=1&ved=0CCoQFjAA&url=http%3A%2F%2Fwww2.schneider-electric.co.jp%2Fappl%2FElibrary%2FSETechnical_DB_INT.nsf%2F8a6913e20cdd8337492572b4000e156d%2Fdaecb55dd5d11c4349256dff002ba2f9%2F%24FILE%2F0381933_01A55.pdf&ei=MXiGUuvKK8KUhQeRjIDgCw&usg=AFQjCNHis8DmSa...
  13. E

    large circuit

    Hi all its been a while ,(too busy) i have been to a job today but a little out my comfort zone to be honest so turned it down but sitting here tonight i was wondering how you more commercial guys or gals would have designed the circuit , job was at a commercial nursery in Wolverhampton they had...
  14. U

    Din rail timer contactor wiring

    Got a call out to a pub today, outside lights weren't working. What a mess the wiring is, as usual done by a large 'reputable' electrical contractor! DB for externals fed from supply side of switch on another DB, blanks missing from, no grommets in it 6mm Earth for the 25mm tails feeding the DB...
  15. A

    3 phase contactor with overload

    Hi all, Could some one explain the correct way in connecting a 3phase contactor with overload protection. I have the supply going into l1, l2, l3 and motor connected to the load terminals, t1, t2, t3. I also have the 230v connected to the a1 coil and neutral on a2. Just a bit confused...
    • Akanami
    • Thread
    • 3 phase contactor current motor motors overload phase
    • Replies: 19
    • Forum: UK Electrical Forum
  16. W

    Contactor---> Ring, wiring advice.

    My apologies all, my post was of coarse missing some stuff, and rather confusing. 1. Are there any obvious rules preventing the use of ring circuits coming from a contactor like the one pictured below, it doesn't s seem there is. 2 Provided there are no restrictions preventing the use of a...
    • whproject
    • Thread
    • advice contactor ring wiring
    • Replies: 31
    • Forum: UK Electrical Forum
  17. rmaynard

    Thoughts needed - Battery back-up

    Iv been thinking about a way to keep the lights on during a power cut and have come up with the following idea, it will be mainly used in domestic properties, iv included an automatic change-over, im picking up a ups today and am going to trial it at home, just wondering if anyone has any...
  18. G

    100m switch line

    I have to put 25 led down lights in a garage , customer wants them all on one switch line which will be 100 metres long. I'm going to use 1mm. Should I break them down into two lots of 14 ?
  19. joel89

    Contactor Coil Current Rating?

    Just out of interest what current does an AC Contactor coil take? I keep using 300va transformers in my panel builds but never take coil currents into account mainly only have up to 8 contactors. Cheers
  20. S

    Indicator lamp connected across contactor coils

    Someone once told me this is bad practice but I cant remember why. Could anyone remind me? Thanks
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