The easiest LATCHING RELAY CIRCUIT to understand ever! Both theory and practical explained.

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  • čas přidán 5. 11. 2012
  • I love relays! They are easy to understand, you can see them working and they are still in use today in many many systems to switch voltage into circuits to make things happen!
    In this tutorial, I explain from VERY BASIC terminology of a simple light bulb circuit to how to create a "latching relay circuit" and it's purpose in life!
    I relate a lot of this to older generation LIFT/ELEVATOR systems which uses latching relays.
    I hope this video makes sense, and sorry to all the more experienced electronics users explaining a "battery-switch-light bulb" circuit, but I always START AT THE BASICS so that everyone can understand it.
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    THE MRMATTANDMRCHAY CHANNEL, established 2008:
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    What is my channel about? "Old lift machinery made interesting", old air-raid sirens, prehistoric alarm equipment. If "I" don't find it interesting ...then IT DOESN'T GET UPLOADED!
    I always spend a lot of time editing my videos with animations, video in-sync with music and voice overs to make them this way.
    My moto - "Quality NOT Quantity" - spending a month editing a video is not a rarity!
    But without you, I'm nothing here. Thank you so much for watching.
    ...mrmattandmrchay is me (Matt) and my son Chay.
    THANK YOU very much for watching :)

Komentáře • 420

  • @darrylbanjoo2675
    @darrylbanjoo2675 Před 4 lety +1

    Best video on relays i've seen so far with excellent visual and theory explained. Excellent.

  • @elevatorfilmersg
    @elevatorfilmersg Před 6 lety +1

    This is a master piece, when I watched this video years ago when I was about 11, it was so easy yet Complex that I could understand it because of your clear explanations!

  • @scottstefan1
    @scottstefan1 Před 9 lety +1

    Awesome video! Very well thought out, simple and clearly delivered!!!! Thanks for posting this....

  • @Srinathji_Das
    @Srinathji_Das Před 10 lety +3

    Thank you for taking the time to record and edit as well as upload this. I found it relay informative. ;)
    Namaste

  • @pkumarbiz
    @pkumarbiz Před 8 lety +2

    Excellent presentation! Shows the circuit diagrams and the real-life equipment, with transitions between the two. Great learning experience. Kudos.

    • @mrmattandmrchay
      @mrmattandmrchay  Před 8 lety +1

      Cool, glad you enjoyed it! I did this a while ago now and did plan to make another one to explain COM-NO-NC as in my industry people have problems understand it! But it's on a long list of videos that I want to do and I might get round to planning it one day!

  • @almfreak
    @almfreak Před 7 lety

    fantastic explanation! I'm already very familiar with relays but this video is extremely thorough and you make the diagrams really easy to follow! well done!

  • @thromboid
    @thromboid Před 5 lety

    Super-helpful, thank you! Realising that series/parallel switches correspond to logical AND and OR, and seeing how you can make a latching relay circuit, helped me design a scheme for powering a device in a car from the permanent BAT supply using the ACC supply to turn it on but not off (using a separate switch for turning it off).

  • @Ferncraft.Pembrokeshire

    Wow. Simplicity in explanation. Been struggling to understand this and you made this very easy to understand. Brilliant.

  • @aearmada
    @aearmada Před 10 lety +12

    one of the best free info presentation. thanks very much sir. more power !

  • @Spoolz07
    @Spoolz07 Před 11 lety

    This is excellent! I'm in my late forties and I was rubbish at physics at school, but now I have a project that requires me to understand basic relay technology and I found your tutorial very clear and well presented. Thank you!

  • @hashim710
    @hashim710 Před 9 lety

    this is one of the best electrical tutorials that I have seen so far! I hope that you do more of these videos that explains the basic electrical components and how to use them

    • @mrmattandmrchay
      @mrmattandmrchay  Před 9 lety

      Hashim Al Sakkaf Wow, many thanks for your comment - I do have one planned that explains exactly what you just mentioned, but focusing on COM/NC/NO explainations of the relay contacts and how to use them.

  • @igogeh3532
    @igogeh3532 Před 5 lety +1

    Thanks for this video!
    Surely I'll be visiting for more. Indeed this has been my big question for a long time but with the help of this video I'll likely succeed

  • @Mindthegap720
    @Mindthegap720 Před 9 lety

    just started learning PLC and i love your explanation. keep em coming mate! subscribed!

  • @Pedal2Metal_on_YouTube
    @Pedal2Metal_on_YouTube Před 7 lety +62

    The best video on relays I have seen! I'm in a mechatronics program right now and the instructor did not explain these very well nor did he take one apart to show us the inner workings, so this helps tremendously; thank you!

    • @mrmattandmrchay
      @mrmattandmrchay  Před 7 lety +11

      Thank you very much for your kind comment :)

    • @speedmongrelZ
      @speedmongrelZ Před 6 lety +1

      You got that right!!! I'm a gear head and am currently wiring a line lock and a msd 6al-2 step into a latching relay setup. 94 z28. 6 speed. THANK YOU SIR

    • @RajKumar-bw5rq
      @RajKumar-bw5rq Před 3 lety +1

      6jkibiufkvjji

  • @danaalsani1091
    @danaalsani1091 Před 2 lety

    WOW. what a great explaination. im an engineer and this made me feel like i never really understood relays until i watched this video! THANK YOU

  • @pereirabrian
    @pereirabrian Před 11 lety

    Thank you for making this video. I was researching relays to use in a small project, and this video really helped me understand how relays work.

  • @mgpvii
    @mgpvii Před 9 lety

    Thank you for spreading your knowledge and taking the time to educate us. Peace!

  • @ManojKumar-dq1zm
    @ManojKumar-dq1zm Před 4 lety

    Very nicely explained. You are genious. First ever video I saw , explains so nicely with DIAGRAMS.

  • @MotorFlaps
    @MotorFlaps Před 9 lety

    Re relays, best tutorial I´ve come across.
    Ty

  • @larrydee8859
    @larrydee8859 Před 5 lety

    This is great!
    Thanks so much for explaining so we'll, how latching relays work.
    ( Years ago; I worked with large relay arrays).

  • @mahadihassan4008
    @mahadihassan4008 Před 3 lety

    Probably the best video on relays! Thank you!

  • @stm3252
    @stm3252 Před 4 lety +1

    Best tutorial how latching relay work!Thank you very much!

  • @josecunha731
    @josecunha731 Před 6 lety

    ...outstanding tutorial. Thanks! And in ACTUAL ENGLISH! How refreshing!

    • @mrmattandmrchay
      @mrmattandmrchay  Před 6 lety

      Thanks! I get comments now and again about my accent - to me it's normal haha!

  • @neodonkey
    @neodonkey Před 10 lety

    Great vid, very educational, made very clear, could be used at school level. Look forward to seeing more.

  • @ow3nc
    @ow3nc Před 9 lety +1

    Matt, I have to say that out of all the physics classes I attended at secondary schools, yours came out the best! Seriously... this relay video is very educative. I hope you make more of these... as you can tell, a lot of people appreciate the work you do in these videos.

    • @mrmattandmrchay
      @mrmattandmrchay  Před 9 lety

      That's a massive compliment and thank you very much for it!! :) :) I have plans to make further "easy to understand" electronics videos, but to do them "MRMATT" style with my perfectionist qualities takes time. Next video I want to explain building circuits using Normally Open, Normally Closed, Common, Double pole, Single pole switches.

  • @leethomas84
    @leethomas84 Před 11 lety

    This takes me back to my Uni days. I loved working with relays. I always found them much more rewarding than the microprocessor/assembly code options.

  • @shvideo1
    @shvideo1 Před 3 lety

    Awesome circuit with great explanation! Thank you for sharing.

  • @bhavanakorukonda34
    @bhavanakorukonda34 Před 3 lety

    thank you for the detailed explaination of relay and its types , this detailed explaination helped me a lot

  • @mrmattandmrchay
    @mrmattandmrchay  Před 11 lety +1

    Good question!
    The one that I am using to construct the circuit is a DPDT - Double Pole (2 sets of individual switches inside the relay) Double Throw (each switch has 2 contacts, one when it's on, one when it's off).
    The relay is 12volts.
    Buying the right relay is the easy bit, generally a 12v DPDT relay will suit most applications, the difficult bit is understanding "what connector does what" on the relay base - some are easy (like 12:01-12:05), some are not marked as clearly as this one is.

  • @3-dog-solution
    @3-dog-solution Před 5 lety +8

    Bloomin' heck, but through the befuddling circuits: a light was turned on in my mind.
    Amazing what you go through in just stepping into an elevator.
    It's a good vid to watch, .. Recommended.

  • @Aar_S_Tee
    @Aar_S_Tee Před 2 lety

    The best video on relays I have seen!

  • @varunsingh4743
    @varunsingh4743 Před 9 lety +5

    thank you so much .. the best explanation i have ever seen ... you are awesome

  • @nsetablet1374
    @nsetablet1374 Před 4 lety

    What a job well done. Fantastic explanation. Kudos to you

  • @shaunwalsh5637
    @shaunwalsh5637 Před 5 lety +1

    Your explanation helped me a lot, in particular your practical example. Thank you so much.
    I can now do a self latching SPDT relay!!

  • @norman8027
    @norman8027 Před 10 lety

    The work involved is very obvious. Excellent work!!

  • @bhavanakorukonda34
    @bhavanakorukonda34 Před 3 lety

    thank you so much for the information above different relays , this information helped to know in detailed manner about relay and its operations

  • @robertsmallwood383
    @robertsmallwood383 Před 8 lety

    Sensational tutorial mate! You should get a medal for your teaching style -- it deserves to be duplicated in every classroom in the world! If only I'd had you as a teacher in school, I'd have taken over the world by now! ;-) THANKS! Keep up the great work!

    • @mrmattandmrchay
      @mrmattandmrchay  Před 8 lety

      +Robert Smallwood Many thanks for your comment! I have another video planned to explain COM/NO/NC for beginners. Not sure when I'll make it as I've got other videos on the go, but it's in the pipeline.
      I always explain things with complete beginners in mind. I've been on loads of training courses where the tutor has "assumed" that everyone was at the same knowledge level, then gone on and on, leaving less experienced people behind.
      I love explaining and training also. I always think that, if the person doesn't understand what I'm training, then it's up to ME to rethink how I should explain it differently so they do understand.

  • @clarkso65
    @clarkso65 Před 7 lety

    Thank you Sir for sharing your knowledge, clearly explained!!

  • @tollchuck
    @tollchuck Před 9 lety

    wonderfully clear and concise . I have a better understanding now thank you.

  • @vancouverelevators_transit

    I really didn’t realize that I commented and viewed this video 3 years ago lol. I fully understand now. Nice job on this!

  • @TheHexxxtor
    @TheHexxxtor Před 7 lety +2

    Very good job demonstrating! thank you

  • @bryanphipps1909
    @bryanphipps1909 Před 3 měsíci

    The best,,,,,,, ,I've been searching for---ev--------er to find a Good video on 8 pin latching relays and how they work. Easy listing Easy watching ,,,,,,thanx

  • @yem.t.3930
    @yem.t.3930 Před 5 lety

    Bravo ! Perfect ! clear explanation ! Thank you Sir !

  • @plouf1969
    @plouf1969 Před 5 lety

    Excellent video - and I've seen plenty of these before getting to yours! Thanks!

  • @adarshpandey2978
    @adarshpandey2978 Před 6 lety

    The perfect explanation in all ways. Thank you, sir.

  • @actorzone856
    @actorzone856 Před 7 lety

    its an excellent tutorial, It brought me back to the old Cross Bar electro relay telephone exchanges, if you want to see relays and understand them its mind boggling, the exchanges are full of them, it takes 3 weeks to teach the students on just how to get dial tone which is tracing the circuit from the picking up of the telephone handset to obtaining dial tone, I never did the course as I didn't work in the telephone exchanges, goes to show how smart the technicians had to be, well over my head, unfortunately when the semi conductor was invented and the exchanges used micro processors their knowledge became obsolete.

  • @mrmattandmrchay
    @mrmattandmrchay  Před 11 lety

    many thanks for your kind comments :)
    I enjoy training and finding ways to explain things, problem is - "time" to do the videos :)

  • @stever2074
    @stever2074 Před 3 lety

    Fabulous... a clear explanation. Thank you!

  • @smatways8539
    @smatways8539 Před 8 lety

    we was finding the youtube channel like that give every every every single information about any object , and today we successful to took it.

  • @LegacyMicro
    @LegacyMicro Před 9 lety

    Thank you for the tutorial... Best I've seen!

  • @josephbanda9337
    @josephbanda9337 Před 5 lety

    Very good animation, very good explanation with a nice voice, perfect instructional video.

  • @PBS-nm1uu
    @PBS-nm1uu Před 6 lety

    this is the best presentation i have seen thanks for this video !!!

  • @ianwilliams6720
    @ianwilliams6720 Před 2 lety

    This one of best videos on relays .

  • @gntr93043
    @gntr93043 Před 7 lety

    I enjoyed this video,it gave a very good explanation of a circuit,from simple to complex.

  • @rjboyer7243
    @rjboyer7243 Před 11 lety

    Thank you for posting this! Unfortunately, I have a hard time understanding how relays work, especially when in use with I/O ports. This helped simplify and clarify.

  • @NicholasAarons
    @NicholasAarons Před 8 lety

    That Was Fantastic. Keep up the great work. Nick.

    • @mrmattandmrchay
      @mrmattandmrchay  Před 8 lety

      +Nicholas Aarons (Nick Mini) Many thanks Nick, I have a follow up video planned, but no dates as of yet (takes loads of planning, voice overs, etc to finally get a video like this up)

  • @retrofantasy
    @retrofantasy Před 3 lety

    Latching relays are clever, I got it now finally thanks to you. Didn't understand it when I was in college, I which I have seen your lecture back then. :)

  • @keithshreve6736
    @keithshreve6736 Před 7 lety

    Excellent video ! Explained very well, Thank You !

  • @Josh-lm7qq
    @Josh-lm7qq Před 8 lety

    This was really helpful .I always wanted to know about relays

  • @larrysnowdon7212
    @larrysnowdon7212 Před 10 měsíci

    Well I guess I’m late to this video but I can tell you as a tech . It explains things the best . I hope young techs see this thank you

  • @krzysztofbohuszewicz5095

    The best video i ever seen I want to build elevator model with real life solutions and now i can build it THANK YOU SOOOOOO MUCH

  • @conanyeah9585
    @conanyeah9585 Před 2 lety +1

    Thank you 😊 your explanation was excellent !!

  • @Fireship1
    @Fireship1 Před 8 lety

    Another great video. I enjoy them all. Been an elevator "nerd" my whole life. To this day I still will peek in open elevator machine rooms or watch elevator maintenance personnel doing their thing.

    • @mrmattandmrchay
      @mrmattandmrchay  Před 8 lety

      +Fireship1 Cool! I didn't know there were other people around that liked lifts/elevators, but since I joined youtube in 2008 I've learnt that there are many people, including you by the sounds of it :) Thanks for your comment

  • @Milvert08
    @Milvert08 Před 6 lety

    Thank you, this has been very helpful. I now understand what relays are and their function.

  • @glenboonzaier271
    @glenboonzaier271 Před 4 lety

    Awesome video. Very clear how this works. I'm a complete starter in this, just doing it for kicks and hobby. So you have explained how to use a "soft button" to turn a system on, how do you get the same button to operate as the off switch in the same circuit so that every other push is on, off, on, off, etc...

    • @mrmattandmrchay
      @mrmattandmrchay  Před 4 lety

      This could be done, but now you're probably introducing transistors and 'flip-flop' circuits. I'm not aware of an easy way to do this with just relays.

  • @toutouneduberry690
    @toutouneduberry690 Před 10 lety

    GREAT, absolutely great. Wonderful video. Thank you very much.

  • @masudhossain9529
    @masudhossain9529 Před 3 lety +1

    Best described latching relay circuit on net.
    Thanks a lot ❤️

  • @MichaelPeterMazur
    @MichaelPeterMazur Před 11 lety

    Best video yet, great job

  • @316Darius
    @316Darius Před 10 lety

    have a practical exam this afternoon using the latching circuit with a fluorescent lamp i can now fully explain what i want to say thank you!

    • @mrmattandmrchay
      @mrmattandmrchay  Před 10 lety

      I'm really happy that this video helped you :) Many thanks for your message

  • @Roberto2Weak
    @Roberto2Weak Před 10 lety

    OMG!! You totally helped me a lot!!! I spent 3 hours trying to figure it out. Saw this video and got it right away!

  • @ashwinidamle4920
    @ashwinidamle4920 Před 7 lety

    Best explanation ever! Thank you so much 😊 👌

  • @FireControl9000
    @FireControl9000 Před 11 lety

    Oh, and i forgot to say, excellent tutorial!

  • @elechliter
    @elechliter Před 7 lety +5

    What a perfect explanation!

  • @allenbraithwaite106
    @allenbraithwaite106 Před 5 lety

    Very good video,Lift companies should show these to Apprentices,Mates,even fitters.

  • @dabbigod
    @dabbigod Před 5 lety

    Fantastic =) Great tutorial, I learned a lot, Thank you

  • @tylerwaryk1266
    @tylerwaryk1266 Před 10 lety

    Thanks for the great tutorial!

  • @getyaboogieon
    @getyaboogieon Před 9 lety

    Brilliantly explained - Thanks very much

  • @cdmccul
    @cdmccul Před 2 lety

    Such a good video! Thank you!

  • @brandanmichael6982
    @brandanmichael6982 Před 2 lety

    Thank you! This helped me design a simple circuit to latch an output from a small PLC. I'm holding an output until I see confirmation from another modules output, then I release the output with the other SPST relay. Thanks again.

  • @SuperSagar30
    @SuperSagar30 Před 10 lety

    relays are became beautiful to me only because of u sir....
    thank you

  • @FireControl9000
    @FireControl9000 Před 11 lety

    @mrmattandmrchay Thanks a lot, really useful tutorial. I think this is especially great if there are any beginners that want to start using relays. This could come in handy for me. Its nice to have a little bit of extra electronics knowledge when you can.

  • @ritmo1130
    @ritmo1130 Před 6 lety

    A masterpiece, thank you !!!!

  • @gartmorn
    @gartmorn Před 4 lety

    Discovered this by accident. I was an electrical fitter in a power station, in Scotland, for 35 years and in the early days we did our own maintenance and repairs on the lifts. This really takes me back. Plc control came in and specialists took over maintenance and all we did, in house, was emergency egress of passengers when the lifts broke down. When we did work on them I remember scratching my head trying to work through sheets and sheets of schematics!

    • @mrmattandmrchay
      @mrmattandmrchay  Před 4 lety +1

      It was the same in the BT (British Telecom) buildings - the relays in the motor room lift logic were very similar to the ones used at the time in the telephone exchanges - so they kept the old lifts running using their own engineers (or so I'm told)

  • @keithshreve6736
    @keithshreve6736 Před 7 lety

    Thank you. Excellent Video!

  • @olegduplij2721
    @olegduplij2721 Před 8 lety +3

    This F U KING owsome. simple and perfekt !! Thanks a lot~Bless you and happy christmas you all who made this!!! Keep on like that i am with you.

    • @mrmattandmrchay
      @mrmattandmrchay  Před 8 lety

      Hey problems and thanks for the comment. I am planning another video to explain com no and nc. Not sure when it will be up though

  • @abar7178
    @abar7178 Před 4 lety

    Thank you for your time. great video thank you.

  • @josedominguez2021
    @josedominguez2021 Před 5 lety +1

    Fantastic!!!!!!!!
    I love Relays.

    • @mrmattandmrchay
      @mrmattandmrchay  Před 5 lety

      me too - most of my channel is based on lifts/elevators that use them :)

  • @paulbellbiz
    @paulbellbiz Před 9 lety

    Very nice! Thank you.

  • @billydamnit
    @billydamnit Před 6 lety

    Fantastic. Thank you for taking the time to break this down. You really should be an instructor

  • @TheZionPhil
    @TheZionPhil Před 8 lety

    You are very skilled at explaining things. Very well done.

    • @mrmattandmrchay
      @mrmattandmrchay  Před 8 lety

      +TheZionPhil cool thanks very much. I've been looking to do another one like this but all takes time to plan and record.

    • @VivekGangwar02
      @VivekGangwar02 Před 8 lety

      +mrmattandmrchay hello sir,where did you works..on youtube only or anywhere else?

  • @integritycommunications4079

    Awesome explanation!!!

  • @vigi86
    @vigi86 Před 6 lety

    Oh, this vid is AWESOME! Thanks mate!

  • @davemartinez614
    @davemartinez614 Před 3 lety

    Thanks, really helpful!

  • @HowToGuys
    @HowToGuys Před 9 lety

    Very neat explained.

  • @scroungasworkshop4663
    @scroungasworkshop4663 Před 3 lety

    Thanks so much. Cheers Stuart 🇦🇺

  • @cee710
    @cee710 Před 9 lety

    Great video mrmattandmrchay, from a Schindler Elevator empolyee.

  • @LoranBriggs
    @LoranBriggs Před 8 lety

    excellent video, nicely explains relays

  • @KURDinEXILE
    @KURDinEXILE Před 5 lety

    Excellent job, well done!

  • @RickRose
    @RickRose Před 9 lety

    Very well done--Thanks!