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contactor

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  1. L

    Contactor not closing

    We have a contactor that controls backs of lights. The local switches are not working. If you kill the breaker and reinstate the contactor operates and lights come on. Once they time out the local switch should work. Is this the contactor not operating or faulty switches ?
  2. C

    Dol starter

    Never really touched on motors always been domestic, any ways il cut to the chase, got a job dol starter 3ph not stopping on em stop button, am I right in assuming it can only be the dol stater is nakered, and just replace it, or could it be deeper and be overload setting wrong etc etc. Also to...
  3. L

    Switching Arrangement

    Back again! Im currently doing some garden lighting at my parents place and need some help on the switching arrangement. I ran all armoured's(9) back to the garage and connected them to a din rail enclosure, from this enclosure i ran a 12core armoured to the house via adaptable box. The...
  4. GBDamo

    Relay Question

    Any advice would be greatly appreciated. I have a slightly atypical job that requires the following to both power a single immersion heater:- 1 - iBoost+ solar immersion heater. To run for the majority of the time. 2 - Programmed switched feed via a contactor fed from a 230V 13A FCU. Powers...
  5. Stuart Houghton

    4 x 50 watt LED Flood Lights on 3 PIR's

    I'm planning to install 4 50 watt LED flood lights and three PIR's the idea is to link the switched output of the PIRs so if one is activated all of the lights come on. I also plan to link the switched output to a wall switch so that the customer can turn them all on manually. It is possible...
  6. R

    What size contractor

    Well lads iv been asked recently to do a job that the customer wants all the sockets in the garage isolated as he leaves in the evening preferably using an isolator switch. There are 4 socket circuits.Can anyone recommend what size (and brand) contactor and isolator switch cheers
  7. A

    Interlocking conveyors and motors

    I'm going to be learning to interlock conveyors so that one cant start without the preceding one running. For safety purposes. I'm working with a guy that does this all the time and we wont be doing this until next Saturday but he isn't the best at explaining stuff. He knows his stuff and is a...
  8. M

    Remote switching of 3 phase consumer unit

    Hi Guys I have a client that wants to switch a 3p cu (for lighting only) remotley.It is for back stage lighting . They want to switch it on automatically to bring up the lights on the stage when they fire up their PA system which currently remotely switches the amplifiers which are just below...
  9. N

    Wiring A Three Phase Contactor With 24v Coil

    Morning gents, Im trying to find a wiring diagram for a three pole (three phase) contactor, using a 24v coil. Ive found plenty with a 240/415v coil but none with a 24v coil. Im assuming theyre both very simular, only difference being you'd have to pick up your 24v from a different source instead...
  10. M

    Difference between Module type contactor and normal contactor of same amp rating

    hi guys need to know the differnece between a module type contactor and normal contactor. can we use moudle type contactor for power a distribution box with phase fauiler relay to avoid single phasing. the DB box is not the main db box its made to power three machines a vacuum / compressor...
  11. M

    schneider RM17TG20 PHASE CONTROL RELAY CONNECTION WITH CONTACTOR

    hi every body. need to make connection of a schneider contactor LC1D40A with schneider RM17TG20 phase control relay. need to how to wire between these two to make the relay will trip the contactor when single phasing happens in 3 phase system. schematic diagram will difficult to understand...
  12. R

    Help with wiring keycard switch??!!

    Got to price job for local hotel to install key card switches in every room, but could do with some help in the best way to wire these (Which will allow me to price accordingly!)! Currently there is 1 DB on each floor which serves all the rooms on that floor, the DB board is layed out with 6amp...
  13. C

    Contactor controlled distribution board via emergency stop

    Hi. Im looking for the best advice for wiring an emergency stop circuit controlling a dis board via a contactor. This is a dis board feeding circuits in a workshop so the whole dis board must be de energised when the stop button is hit. The problem being the contactor is fed from the dis board...
  14. Y

    Sizing a Contactor.

    Morning all, Possibly a simple question But a mix of doctor prescribed medication and post Wembley joy have left my brain elsewhere. I have a sub DB that needs the supply isolating if a fire is detected (commercial Kitchen) So The 3 phase supply for this DB needs a 4P contactor. Do I size the...
  15. C

    Contactor overload

    Hi all, had a blocked pump that caused a overload on motor, ocpd went before motor overload. Should the motor overload always discriminate with ocpd and operate first? The motor overload was set to auto but I don't think it ever operated under fault. Motor draws 6amps under load and the motor...
  16. B

    Lighting contactor with capacitor

    :welcome::conehead:Why are capacitor used across the contacts of lighting control contactors. I had some trouble with fluorescent lights blinking and found 48 volts coming thru the cap.277 volt circuit. Removed the cap and blinking stopped
  17. B

    Setting the overload on a motor circuit contactor.

    Hi I haven't much experience on this subject so thought id ask!. I need to choose and set the overload on a circuit contactor containing an overload. It's a 3ph motor rated at 14.1 amp do i set the overload at the same current rating or just above due to the initial inrush?
  18. M

    Timer Switch Failures

    Hello Forum Members, I would really appreciate any advice you can offer on this problem. I live in an apartment building in Montenegro. There are a large number of lights around the outside of the building and these are controlled by a timer switch to illuminate the car park and front entrance...
  19. B

    Contactor Fault

    Hi just after a bit of help with a intermentant issue I have with some car park lighting that is controlled by a time clock and 3 contactors. The contactors are sticking in so the lighting is staying on, ive taken off the load for the lights and the CB for the time clock which resets the...
  20. S

    Contactor and Underfloor Heating

    I have a flat that has Up and Under Heating system. The ceiling heating is fine. The underfloor heating has not worked for 18 months plus. There is an outside Pactrol sensor, which feeds into a Pactrol Weather Watcher control unit, which feeds into a Benedikt & Jager K2-23A10 Contactor. I...

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