relays | Page 4

relays

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  1. K

    Relays and contactor wiring?

    Is the connections the same on a relay as it is on a contactor, with the a1 for switched live to switch the coil on, and a2 for the neutral coil.?
  2. U

    Advise regarding relays

    Called to agents shop today no sign lights , on further investigation I think it could be the relay, the relay supplies a couple of timed circuits. two circuits work fine and the sign light do not .not sure how the relays work never fitted one before .
  3. F

    Explaination Of French Intermediate Switching!

    Help!! trying to complete a job, in London for a French couple. At a late stage, two floors first fixed, the client wants to use a French make of accessories, Arnould (off shoot of Legrand). Basically, they do not make an intermediate switch like ours but uses a system back at the CCU on the...
  4. H

    Heating relays

    Can anyone recommend a 240v relay, what I'm trying to do is use two pumps instead of pump and two motorised valves but when I send power to the boiler and one pump I don't want the other pump to run so was thinking if a relay
  5. K

    test plan for distance relays

    dear sir, My name is Rajesh.B ,working as protection engineer in APTRANSCO,india. while testing distance relays using doble f6150 , the results are not found satisfactory. any one can help regarding ALSTOM Pd521,ge-d60,siemens 7sj60,ABB-Razoa. kindly mail me regarding this...
  6. K

    test plan for distance relays using doble f6150

    Dear sir, We had doble f6150 testing kit , please any one can providev test plan for distance relays like : alstom pd521, er-ohmega, ge-d60,
  7. B

    Pilz Relays

    i am an apprentice in a factory doing electrical engineering. i would like to know how pilz safety relays work, and how they are wired into an electrical circuit. any info would be appreciated.
  8. M

    G59 Relays???

    Does anyone know if G59 relays are absolutely mandatory for every system above 16A/phase? Someone has said that if you install a sunny tripower 10000TL you don't need to install a relay as it has the adequate G59 protection incorporated? I know this is a bit of a grey area but I'm hoping someone...
  9. G

    Single shot Relays required

    Need to source 2 of the following. Single throw relay (don't need DPDT) Any input voltage, but 12v DC preferred. Very low switching output of 3volts. On energising the relay they need to switch over the 3volts for about half a second or so but then remain off until relay is cycled off back...
  10. K

    relays

    can any one give me the connections for a hager relay its a ER 125 single module the clickes onto the din rail i have been tyold that a1 and a2 is coil and that if i link 2 and 4 they be come common but i need to know what 1 and 3 are? one is N/O and other is N/C but i just dont know witch way...
  11. shakerbess

    induction type overload relay

    hi could anybody help need to find out the following please little stuck question: show how an induction relay maybe used together with other components to protect against overloads and earth faults on the transition and distribution system any help would be great thankyou
  12. S

    Small PLC's or Logic Relays used in Domestic/Commercial Settings

    Hello All I am looking for peoples experience of using small PLC's or Logic Relays in the domestic setting. I am looking at the likes of the moeller easy, mitsubishi alpha, and the likes. I have only used one of these types of relay in an industrial application over ten years ago and this was...
  13. C

    relays, time delayed

    hi, i am connecting a time delay relay onto a lighting circuit. i am going to have a switch on the circuit, when you switch the light on it should go on and stay on, until the switch is switched off again. when the switch is switched off, i want the light to stay on for ten minutes then go off...
  14. J

    solid state relays

    anyone know a good source for a 3pole solid state relay. Not sure what load it has to handle but reckon it would be around 10kw I think the control voltage would be 110v but would need to check it out
  15. D

    3 Phase Stuff..!

    going for a job interview tuesday and well i have got to do a trade test :rolleyes: stuff i should know but have not used it for a while!! as i never really needed it..! had a good heads up so far but 2x Niggly stuff which i not really had much to do with..! Star / Delta Motors...! am i...
  16. D

    Relays , Contactors and Electronics...

    Im bit empty headed when it comes to them things but i just applied for a job that pays silly money and well i need to brush up on my skills and knowledge about them...! any good books or courses you know about! sorry for sounding ignorant about them but they never really floated my boat so...
  17. S

    Relays...

    Hi, could somebody give me a little tutorial on relays on the basics of how they work? Iv never really understood them too much. Thanks in advance lads. ;)
  18. J

    Relay/Contactor Advice

    Hello all I have been sent here from Tilersforum so hopefully posting in the right place! I bought some Heatmiser 12v Network Thermostats and need to use one of these to actuate my underfloor heating (240V/2KW so that is roughly 8A). I am therefore looking at 12V coil Relays or Contactors...
  19. B

    Wiring Diagram for relays

    Can anyone please advise how to wire a couple of relays with a standard push button switch, to allow a thermostatic controller, when reaching a certain temperature, to send an input to the relay(s) and thus tripping the switch off. The key thing I want to achieve is that the switch/button...
  20. J

    Pilz safety relays

    Hi, Does anyone know how to wire Pilz PNOZ safety relays in electrical control panels. I have wired several panels in the past, but in my new job these safety relays are standard.;)

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