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

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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:
I'm passionate about uploading quality and interesting videos for YOU, my audience.
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.
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THANK YOU very much for watching :)

Опубликовано:

5 ноя 2012

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Комментарии : 420

@Pedal2Metal_on_YouTube 7 лет назад

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 7 лет назад

Thank you very much for your kind comment :)

@speedmongrelZ 6 лет назад

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 3 года назад

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@elevatorfilmersg 6 лет назад

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!

@darrylbanjoo2675 4 года назад

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

@Spoolz07 11 лет назад

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!

@pereirabrian 11 лет назад

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.

@Srinathji_Das 10 лет назад

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

@scottstefan1 9 лет назад

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

@pkumarbiz 8 лет назад

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

@mrmattandmrchay 8 лет назад

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!

@leethomas84 11 лет назад

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.

@thromboid 5 лет назад

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).

@MotorFlaps 9 лет назад

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

@aearmada 10 лет назад

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

@mrmattandmrchay 10 лет назад

thank you!

@danaalsani1091 2 года назад

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

@igogeh3532 5 лет назад

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

@bryanphipps1909 2 месяца назад

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

@Ferncraft.Pembrokeshire 3 года назад

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

@TheHexxxtor 7 лет назад

Very good job demonstrating! thank you

@stm3252 4 года назад

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

@mrmattandmrchay 4 года назад

thanks for the comment

@almfreak 7 лет назад

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!

@Mindthegap720 9 лет назад

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

@ianwilliams6720 2 года назад

This one of best videos on relays .

@josecunha731 6 лет назад

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

@mrmattandmrchay 6 лет назад

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

@mahadihassan4008 3 года назад

Probably the best video on relays! Thank you!

@larrydee8859 5 лет назад

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

@mgpvii 9 лет назад

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

@ManojKumar-dq1zm 4 года назад

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

@mrmattandmrchay 4 года назад

Thanks a lot!

@3-dog-solution 5 лет назад

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.

@norman8027 10 лет назад

The work involved is very obvious. Excellent work!!

@willsarms3 3 года назад

this video was by far easier to understand than looking images up on google

@yem.t.3930 5 лет назад

Bravo ! Perfect ! clear explanation ! Thank you Sir !

@vancouverelevators_transit 2 года назад

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

@rjboyer7243 11 лет назад

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.

@HowToGuys 9 лет назад

Very neat explained.

@hashim710 9 лет назад

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 9 лет назад

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.

@mrmattandmrchay 11 лет назад

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

@smatways8539 8 лет назад

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

@varunsingh4743 9 лет назад

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

@mrmattandmrchay 9 лет назад

VaRuN SiNgH Thanks very much! :)

@clarkso65 7 лет назад

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

@shvideo1 3 года назад

Awesome circuit with great explanation! Thank you for sharing.

@Aar_S_Tee 2 года назад

The best video on relays I have seen!

@stever2074 3 года назад

Fabulous... a clear explanation. Thank you!

@tollchuck 9 лет назад

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

@FireControl9000 11 лет назад

Oh, and i forgot to say, excellent tutorial!

@elechliter 7 лет назад

What a perfect explanation!

@mrmattandmrchay 7 лет назад

Cool, thanks!

@neodonkey 10 лет назад

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

@bhavanakorukonda34 3 года назад

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

@adarshpandey2978 6 лет назад

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

@mrmattandmrchay 6 лет назад

Thanks very much for the comment :)

@larrysnowdon7212 9 месяцев назад

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

@ritmo1130 6 лет назад

A masterpiece, thank you !!!!

@shaunwalsh5637 4 года назад

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

@mrmattandmrchay 4 года назад

Excellent! Glad you found it useful :)

@Josh-lm7qq 8 лет назад

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

@tylerwaryk1266 10 лет назад

Thanks for the great tutorial!

@conanyeah9585 2 года назад

Thank you 😊 your explanation was excellent !!

@mrmattandmrchay 2 года назад

Cool, thanks for the comment

@ow3nc 9 лет назад

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 9 лет назад

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.

@MichaelPeterMazur 11 лет назад

Best video yet, great job

@toutouneduberry690 10 лет назад

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

@bhavanakorukonda34 3 года назад

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

@nsetablet1374 4 года назад

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

@Fireship1 8 лет назад

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 8 лет назад

+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

@plouf1969 5 лет назад

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

@mrmattandmrchay 5 лет назад

cool, thanks for the comment :)

@iliapopovich 3 года назад

Fuck, now I got it. I did all kind of mathematics in the electric engineering course ,like Karnaugh maps, Boolean algebra, Complex numbers, Integration etc, all passed very well, but now a days nobody explains you how a simple latch actually works. Good job man.

@LegacyMicro 9 лет назад

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

@mrmattandmrchay 9 лет назад

Many thanks for the nice comment :)

@SuperSagar30 10 лет назад

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

@keithshreve6736 7 лет назад

Thank you. Excellent Video!

@robertsmallwood383 8 лет назад

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 8 лет назад

+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.

@mrmattandmrchay 11 лет назад

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.

@krzysztofbohuszewicz5095 7 лет назад

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

@billydamnit 6 лет назад

Krzychxxx me too!

@gartmorn 4 года назад

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 4 года назад

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)

@cdmccul 2 года назад

Such a good video! Thank you!

@316Darius 10 лет назад

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 10 лет назад

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

@allenbraithwaite106 4 года назад

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

@integritycommunications4079 5 лет назад

Awesome explanation!!!

@getyaboogieon 9 лет назад

Brilliantly explained - Thanks very much

@mrmattandmrchay 9 лет назад

getyaboogieon Many thanks!

@josedominguez2021 5 лет назад

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

@mrmattandmrchay 5 лет назад

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

@Milvert08 6 лет назад

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

@mrmattandmrchay 5 лет назад

Cool, glad it was useful for you :)

@abar7178 4 года назад

Thank you for your time. great video thank you.

@retrofantasy 3 года назад

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. :)

@mrmattandmrchay 3 года назад

cool, many thanks for your comment! :)

@masudhossain9529 3 года назад

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

@mrmattandmrchay 3 года назад

Thanks and welcome

@actorzone856 7 лет назад

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.

@keithshreve6736 7 лет назад

Excellent video ! Explained very well, Thank You !

@mrmattandmrchay 7 лет назад

+Keith Shreve thanks for the comment :)

@AvocadoAtrocity 5 лет назад

This is a masterpiece.

@mrmattandmrchay 5 лет назад

Thanks, wish I'd spend even more time on it if I'd know it was going to get this popular lol! :) Thanks for the comment

@borisrunakov1662 11 лет назад

excellent tutorial!!Thank you

@RickRose 9 лет назад

Very well done--Thanks!

@danielwinsor6018 11 лет назад

That was fantastic! Thanks!

@davemartinez614 3 года назад

Thanks, really helpful!

@stevieboi61 Год назад

i learned. thankyou for sharing.

@paulbellbiz 9 лет назад

Very nice! Thank you.

@ashwinidamle4920 7 лет назад

Best explanation ever! Thank you so much 😊 👌

@mrmattandmrchay 7 лет назад

+Ashwini Damle thanks for the cool comment :)

@gntr93043 7 лет назад

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

@mrmattandmrchay 7 лет назад

Cool, thanks for your comment.

@shridharkulkarni7053 9 лет назад

thanx for posting understood clearly

@robviolin1 10 лет назад

Thanks for your help.

@olegduplij2721 8 лет назад

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 8 лет назад

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

@NicholasAarons 8 лет назад

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

@mrmattandmrchay 8 лет назад

+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)