Reversing Contactors: Dissected and Explained

[@lmsubman243]

Those 107 dislikes obviously could not appreciate the superb instruction just delivered!! You don't get a presentation any better than this💯

[@biggunsnu]

Hands down the best video covering this out there. It's been a long time since I've wired contactors for forward/revers control. Perfectly explained.

[@adrianharrison-jones9230]

I'm doing a electrical course and this video is excellent, shame you can't do more, you have a natural gift for teaching. Cheers Bud for making it so simple.

[@MizunoIronMan]

Thank you for sharing such an informative and concise video. Wired up a forward/reverse contactor at college today for a three phase motor. Fortunate to have a tutor with a wealth of knowledge and patience who in a similar manner to yourself explained the concept expertly. Contactors and relays seem intimidating at first but once you gain an understanding of how the control circuitry works , then the ingenious simplicity reveals itself. Thanks again, look forward to viewing more quality videos from your channel.

[@crazi429]

Great video helped this old mechanic understand the operation of my old shop door. Now I can diagnose it better.

[@patterickktube1907]

This is by far the best tutorial video on contactors i have watched on you tube. you are a professor in my opinion by your approach. Thank you alot. God bless you.

[@pankajagarwal2529]

probably the best explanation on contactors i ever came accross. this sort of practical demonstration really helps where students get rejected by companies due to lack of practical knowledge.

[@brkshr]

Thank you so much. I’ve been trying to wrap my head around the logic of this for a few hours researching all over the Internet. I finally get it thanks to you.

[@leifstenstrom4723]

Hello William. Calling you from Swedem. My best ever spent minutes for understanding how a contactor works. I do hope, that education is your prime work in life.

[@Xxxcappie23]

Do more electrical videos, you have a gift of teaching that needs more frequency. Give this man a Bells

[@edburr3227]

You’re an absolute legend! Finally someone who explains it correctly!

[@iskoos]

How could you not like this video? It is an art work...

[@robertsaka8943]

This fellow is well tuned with the knowledge of Contactors. Genius.

[@TheOkiepreppers]

Now that's how electric motor controls should be taught. We informative with details on each contacts purpose. Thank you I learned.

[@N4594C]

Great explanation of the reversing contactor. I'm updating an old vertical mill with a MacMotion CNC system and this video is most helpful in describing what I need to do to add a contactor from the old electrical panel to the new panel. Thanks. Mark Mox

[@onlydoors]

This is a basic and more traditional circuit, very efficient and immune to overload and parasitic current. Very good explicated

[@hogg8888]

your a ledgend mate . saved me looking like i dont know what im talking about when im at work

[@ericmagray]

Fantastic video! My bandsaw just broke down on me and I have been scouring the web to find a solution quickly as I need the equipment running immediately. Your video is very educational and I know enough now to troubleshoot the next area of my problem! Thank you.

[@prashant1034]

Most simple and useful video to understand. Thanks William for putting such a wonderful effort.

[@eepower]

I Sincerely have to say this is one of the greatest videos. I am happy to joint your channel. Your great work making these videos is highly appreciated

[@dunbartuason5443]

I wish you did more on Star Delta timers & DIN rail delay timers... You have a way of explaining details in a very simplistic way. You are the best.

[@coilsmoke2286]

Thanx and a very nice primer on contactors plus 3 phase circuits. Why would 40 people 'thumb down' a purely factual and interesting video ? Crazy ...

[@youmah25]

the best 13 minutes of all my study time

[@insertname5365]

well done, you explain the concepts better than most teachers/tutors I've had..

[@permindermanku9665]

Hi William thats probably the best explaination I seen for a while keep up the good work!

[@davidhamilton2708]

Great video! Explained everything clearly and accurately 👌🏿

[@DJtheDad]

Thank you for a very clear explanation of these concepts with properly terminology and done in very clear English. A+++

[@montellpatterson958]

Great video, im an industrial Electrician and i enjoyed watching this video.

[@timcollard5109]

Thanks William. Excellent video. You made it very easy to understand. God job.

[@zeus_619]

Amazing refresher crash course on wiring forward / reverse motors 👏🏽👏🏽 Thank you! 🙏🏽

[@obinnankemdilim6682]

Excellent video. Very explanatory. I gained new knowledge watching this video.

[@aggibson74]

Great explanation. Wish I would have seen this video years ago before I had to figure it all out without a good place to find this info.

[@neutrodyne]

You did an excellent job explaining how reversing contactors work! Thank you for making the video. You may want to consider doing a follow up video explaining how to use this type contactor with say 4 different controlling switches at different locations like would be used in an elevator with a safety stop switch. Thank you again.

[@jimothyboomington]

Very nice and informative video. Especially for the electrician who does not work with 3 phase motors often

[@rashidbaloch3029]

Excellent explanation... Thanks man, for sharing your knowledge.. may God help you on every step of life.

[@walterhgriffith]

VERY good presentation. Clean and to the point.

[@TheStargazer1986]

Thank you! I wish there were more videos like this about all electronics!

[@Alehandruh]

I appreciate the cutaway sections you created for the explanation .

[@miguelmorrison4784]

Thank you very much this the best I've seen,my teacher couldn't really get it across to us like this but now I am gonna start practicing this until I am fully satisfy

[@charlieromeo7663]

Great video William. I'm replacing contractors in a surface grinder and one of them is a reversing contactor.

[@NarendraKumar1992]

Out standing Video for beginner to understand the base of contactor working principle and i think this useful concept in my application !!!..

[@rv32958]

helpful video..good job William..keep uploading such videos on electrical equipments and their working...its interesting.. appreciable work

[@seremaiarabaraba296]

Best detailed explanation for forward reverse. ..thank u very much.

[@rkctechnologiesinc2947]

Nice presentation, we have enjoyed using your videos for some training as its very simplified and easy to follow great job :-)

[@salihularry]

It's really a good video with short but detailed explanation, thanks a lot

[@bojanb4764]

Thank you very much for this video. I am finishing my electrical pre apprenticeship and motor control is very interesting on paper, yet very confusing to think about in practice as I have my first lab coming up tomorrow. Thank you for showing the actual components and what they do.

[@Cinqmil]

This is one of the best tutorials I've seen on contactors. Too bad you stopped producing content.

[@deightonharper877]

Sir you are an amazing teacher. Thank you for your time and effort.

[@harpreetsinghpadda203]

great demonstration .no match around the world william

[@razorworks9942]

Best explanation on motor and switch connections I've ever heard!! Got a new subscriber! Thanks, Razor!

[@RogueRubio]

Great video! You explained everything so well. Thank you

[@vet137]

OMG you are a wizard at teaching!!

[@zariellebelle8200]

Great video, you explained everything in a neat and clear way. Thanks!

[@MrNavenipreh]

This is a really well done video full of good information. Thank you, sir.

[@pingdwendeouedraogo4607]

great video, i have learned a lot through that video. thanks for sharing your knowledge. from Burkina Faso West Africa.

[@that1electrician]

Samuel Arnaud OUEDRAOGO Theres electricity in Africa? Mind. Blown.

[@nemojac]

nice informative presentation,any idea how to wire up a three phase motor operating Ridder type screw 1-10 ratio worm gear running contentiously back and forward through a limit switch and on timer?

[@metalmoto]

A friend of mine just gave me this chassis with a 80 amp motor reversing contactor on it. Not sure what it came out of. But it has momentary switches labeled, up/down, fold/unfold, open/close. Thanks for explaining how it works.

[@jokatech1]

2020 and the information is still helpful... thanks a lot man

[@glennbarron7268]

great video, helped me a lot to wire a contact with momentary and continuous run. very well explained

[@TheHoepleaser]

This VIDEO is so informational, it helped me a lot.

[@1gdfoster1]

Thank You Very Much! Simply explained with actual parts.

[@antonyj1651]

Answered lot of questions I had in my mind.Great presentation!

[@mutebijonathan1460]

thanks so much sir for your lesson me am here in Uganda learning, am doing a electrical engineering as my course.

[@Ktulu789]

Great video, and you even explained the last NO connector. I've just had a generator installed at work for power outages now by the summer and the installer used a couple of these to switch between the grid and the generator automatically. Besides he didn't use that fourth connector but installed an extra switch outside which I was wondering why he didn't use the fourth one? Now I think I understood it, the fourth one is for lower voltages. The installer has to come in some weeks to finish some touches so I will know what voltage goes through the fifth extra switch. I'm an IT admin, so my job is not directly related to electricity but I was reading a lot about the inner workings of some systems and how what one ordinarily thinks that is "just plug it in, and it works" is completely another matter behind the socket. Coupling armonics, inductance and a whole lot of things that complicate the matter quite much, not simply 200V 50Hz :D (Argentina). Thank you very much for your explanation and video. You've got me subscribed!

[@stuffoflardohfortheloveof]

That, my friend, was brilliant!. Thank you very much 👍

[@MrJgkamps]

Great Job William!! Looking forward to what's next!

[@J.Runk81]

Very good vid.. Ive been to more than a few IDA expos over my 14 years as a door man and they don't have anything on u! They should be paying u to put on tech seminars.

[@a914freak]

I have a pallet machine that that has a stacker and a conveyor underneath it unfortunately the motor turns the conveyor rollers towards the wall. The motor is controlled by a contactor, can I reverse the direction the motor at the contactor without rewiring the motor?

[@numerusv5266]

Simply amazing tutorial! Thanks👍🏽

[@galax574]

What is the main purpose of NO or NC terminals of the contactor? Can I just treat NO and NC as a switch, connect anything I want?

[@lukestrange5501]

Fantastic work. Will use this for training my crew.

[@thomashvnmusic]

Amazing, thanks for the effort put into making this video. I have learned a lot.

[@brianmcgirr4648]

Thanks. Changed reversing contactor with your help.

[@Unibomber2u]

Why would my 3 phase 48V DC motor run fine counterclockwise or backwards for what I need. But, when I switch any 2 of the phase wires it jerks and jumps then blows the fuse. I suspect it is trying to run in both directions at the same time. According to all the experts switching the phase wires is a simple method to reverse the rotation. Not on my motor. Any ideas?

[@SalmanKhan-vp1oq]

Dear brother, thanks for explaining the contactors in detail. please tell me how to wire the small contactors if we use to contactors one for utility company electricity line and other for a generator. If both the power supplies are on than how to keep on shut down and the 2nd one in running condition.

[@BC4Lyphe]

excellent video. thanks for putting your time and effort into it.

[@patmac]

Great video. Making the difficult simple. A true talent. Tx

[@waynepetti-tv]

What model number interlock does he have in between the 2 contactors so he can keep them locked in place.

[@BoggyBeams]

Great video! This explained some things I was pretty fuzzy about. Thanks alot!

[@pjgolden5265]

Great tutorial, many thanks. Can these contactors be used on a single phase 220V motor to operate up and down on worm drive car lift?

[@AaronPaul888]

Very nicely done sir and very helpful and informative. I plan on sharing this with our field techs. Also I have subscribed to your channel. Thank you

[@tonymagri2846]

You have made it so easy to understand Thank you

[@tonyfoxgg]

So reversing is done in 3 phase motors only? I'm doing a project for school and the project is to draw a schematic for a reversing starter with all 3 interlocks. We use 120v contact relays (with light bulbs instead of motors just to learn how to wire up) so this reversing starter has to be with a 3 phase?

[@walthanek6502]

Really well explained and illustrated Good job

[@mardidomingo2922]

thank you for sharing your knowledge, ive learned a lot..i hope you have more videos to learn me much more..especially in electrical and electronics..

[@KillingFloor2]

12:49 is that called low voltage protection?

[@imuruncledaddy8753]

Yes and this is caused by the loss of the magnetic field pulling the switch down. I believe this is how some circuit breakers offer LVP too.

[@ghulammohammedkhan1207]

u are a gud teacher.....u have described everything concisely. Can u please show some contactor applications with timers and relays......

[@peterday759]

ghulam mohammed khan juju

[@meesiphht2769]

What would be the significance of marking those 4th sets of contacts A1 and A2? Would that be for a double reversing contactor ? I have one - Telemecanique LC2K0901B7 Reversing Contactor - that seems to be such an animal but I can't find the engineering drawing on it. Thanks for the video

[@Automationacademytv]

Thanks in Advance leave a comments so that i can shout you in my next video

[@LubaLuba1]

Ok contactor relay is working with thermostat physically saw it and with meter but when I put in pull switch in the UNIT kicks on. What can cause this?? ·

[@michaelcarr4068]

great video and simply explained,good job.

[@MrWtfover1]

Nicely done. Very concise and easy to understand. I have a bit Q if you may offer some advice,I sure would appricate any help. I have installed 120/240 single phase A/C - feed to a 48vdc battery bank with a 5kw inverter/charge. all in one unit. It's a great system. it is designed to allow the a/c circuit (Feed to the inverter) to flow thru matching the phase at the inverter to the charger and the load up to 5Kw until the power is lost or interrupted and then it switches under 5 milsec to the inverter to carry the load up to 50amps. .Down Side? is the charger can consume up to 12amp just to charge the batteries the eats up my Kw available. However the panel I am feeding is a 125amp 120/240v and during the day ,if the load is greater than the inverters capacity...it see's this and it shuts down. as it should. Now for my big Q. Is an interlocking pair of Mech/Elect contactors my answer? I want the utility load to feed a sub panel during normal use not passing thru the inverter. What I think I end up with is. First I need to feed the inverter from the main house panel an it's own 50a 3p breaker. Then use from the main house panel a 100 amp breaker as primary source to a 100amp 3P contactor (also switching the neutral) and the load side of the inverter as the secondary source. on a 50amp breaker. I also am going to install a wifi timer to turn off and on the 120v coil...(this is for use during peak hours) for approximately 3-4 daily. While being there in case of a power outage too. To save the food in the refers/freezers. I think I am going to have to use a stand alone terminal block to split the and parallel the load wires so I will end up with3- #2s and 3- # 6s to accommodate the 50amp lower load capacity on the secondary contactor inverter. The customer is aware he can only run up to 50amp not run full power during the use of the battery bank/inverter. Sorry this is such a long winded explanation...any help would be appreciated. I look foreword to your reply. Thanks in advance.

[@cutecubb]

Good video, it explains the basics very well.

[@AngelGomez-uq8vq]

Arjun Singh jc

[@AngelGomez-uq8vq]

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[@AngelGomez-uq8vq]

Arjun Singh bv k

[@AngelGomez-uq8vq]

Arjun Singh v

[@abeltadesse6486]

explained vividly. Thanks a lot

[@mickeylewis8094]

Thanks for the well explained video!! Could you please show how I can incorporate a thermal overload protection in to this connection?

[@edgardagosto3928]

Thank you so much William! I'm trying to build an automatic transfer switch with contactors. Do you have any related video?

[@andyantro1]

wow,fantastic video,very well explained !

[@udokankamnebe2748]

Very good illustration. Thanks.

[@Easydread]

Great video. You have taught me something now 👍🏽

[@paulgerrard578]

How would you incorporate a limit switch to this ?