Wire magnetic reed switch with relay for high current
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- เผยแพร่เมื่อ 18 ก.ย. 2018
- An example of how to wire up a magnetic reed with to control high current loads using a relay.
The relay used: amzn.to/3aVoENS
The reed switch used: amzn.to/2OvDCMp
One thing I forgot to mention in the video is to make sure the jumper is set to the L side, not the H side. The jumper should be between on the L and middle pin. - แนวปฏิบัติและการใช้ชีวิต
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Thanks for the video and for the note about the jumper pin. Instructions worked great! I added the relay after my reed switch melted down from a too long LED strip in an under-shelf application in my pantry. The reed switch is staying cool and so far it is operating flawlessly.
OK no really,,,, I’ve probably watched 10 videos, And no one can seem to talk properly explain properly or even talk for that matter… They don’t show me where the powers coming from. They just show me what is powered up these videos are just dumb and stupid….. But not yours,,,, Yours is the best video on TH-cam hands-down,,, So simple and easy to explain, showing me where the power and the negative is coming from showing me the switch which I’m using a thermostat switch… And then the LED light in my case is a little tiny fan,,,,, How hard was that nobody can seem to freaking right except you… Thank you very much for your video. You did an awesome job.
Wow! Thanks. Glad it helped!
A video that I have been searching for a very long time !!!!
Thank god I didn't setup my project yet. I just found out that the reed switch is rated at 0.5A. And I'm going to connect it to 4A of LEDs. This video really solves my problem before the problem occurs!!
This video really helped me with controlling a high amperage pump using a reed switch fill level sensor and a relay. Thank you!
Very well appreciated sir! Presently installing LED lights in our pantry and your video clarified the wiring extensively. There are many negative reviews on Amz as buyers state the NC NO are reversed. Well, you go with what you have. Not sure why but the relay would not trigger with the jumper in its original position but the text you added explained and once positioned properly, all is fine.
We do have a 4 doors pantry on 2 levels. 2 switches are connected in parallel COM to COM, NO to NO for each level. They work fine independently from each other.
Mentioned your video on Amz review so others can appreciate your excellent work. Isn't it weird that you have to jump externally?
This was hugely helpful. Thank you.
Thanks so much for this video sir. Exactly what I needed!
I was looking for a video to assist with this wiring, thank you for the excellent video. In my case I have a 24v LED strip and power supply so I'm planning to use a step down transformer to 12V to run the relay.
I will accept anyones help that will offer it. I wanted so badly for this to work for me. I'm connecting this to a 12 volt truck battery. I ordered the relay thats recommended in the post. It came with 2 in the package. i installed one exactly as described and it worked perfectly . The switch was cool but after about 5 minutes the relay became very hot.I thought the relay was defective so i switch it out with the other one. Same issue. Then a ran across a post that said make sure you order the 12v version.I looked at my relays and discovered they were the 5v version. So that explained why the relay was getting so hot. I installed the new 12v version exactly as this video instructed and the identical way the other 2 were wired. Did not work. Thinking the new 12v relay was defective i ordered another. Installed it correctly and it doesn't work either. I'm at a lost as to why the two 5 v versions work and neither of the 12 v versions worked. This is wired to a 12v battery.
Does anybody out there have a explanation as to why and offer another alternative? I know this is long winded but damn i ned some help. Thanks for your patience and suggestions.
This video was exactly what I was looking for. I'm using the HiLetgo 24V. I found that when Low/High jumper was set to Low then DC- was supposed to trigger and it wouldn't reliably (the red LED would just flicker and not lock). I simply changed the jumper to High and used DC+ and IN then the relay would trigger reliably. I found 2ma of current to the ReedSw which is fine. Thank you again for a superb video.
Great! Glad it helped.
Found the answers below. Mine are not the 12v version.Ordered the correct one.
I know this video is old but where is the diagram you described how to wire this up. This is setup I’m trying to for my system. I have the reed switch and relay but can’t find the link to diagram mentioned. Thanks
Thank you👍
Ash 🏴
I have a magnetic switch with a Black, brown, and grey wire . How would it hook up to this same relay ? Thanks
Thanks for the great video! What wiring changes would I need to make to make this work without a negative? for example an led strip with two positives (one for white one for orange) and only one negative?
Can you share a link of the LED strip you are referring to? If it has two positives and one negative, then you should be able to run the 2nd positive to the DC+ screw terminal on the relay board. Its the one in the top right of this video.
@@mattadata2 Hi thank you so much for replying.
This is the LED strip: www.amazon.co.uk/gp/product/B07CNB8XL8/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
It has various positives for different functions. What I'm trying to achieve is 2 positives active with the door closed, and only 1 when its opened.
The two positives activate red or yellow coloured leds, with the yellow colour overriding the red (so if red and yellow are connected, only yellow shows)
I wired up everything as your video but the problem is with the ground of the led strip attached to "com" on the relay, it only activates at all when the door is closed.
Hey, I`d like some advice if you`d wanna give it.. If i`m planning on using two reed contacts of the same 60w power supply, as in I want to be able to open the lights(LED strips) individually on each side of my sliding door wardrobe, should i opt for two separate relays, one for each line or can i go with a 2 channel relay?.. The power needs for each side is about, idk, 10-20Watts.. Also , a fixed low lvl trigger would work just as well, wouldnt it?
Hi. Yes, any of those options would work well. Good luck!
Hello, this is just what I need! I’m building a DIY lamp controlled by a reed switch. I see you use a DC power supply. Will this relay work with an AC power supply such as a standard wall outlet? Thanks!
Hi. So this relay can switch AC current from a standard wall outlet ON or OFF to your lamp. But you will still need 5V DC to control the relay. (Be careful when messing with AC!)
I'm gonna use this set up for my shop but instead of a light I will have a alarm. How do I add independent reed switches
Connect busbars to the relay and then connect the reed switches to the busbar. That would mean that all the reed switches run on the same circuit through the relay and any one of them closing would activate the alarm.
Do you think I need to use a relay for 2 led strips in parallel, 12V 1.2Amp total, with a 18W power supply? Or is, for example, a 500mA reed switch enough, it will only power the leds for about 30 seconds max, each time a door is opened.
30 seconds max and I think you will be fine. Put your hand on it to feel how hot it gets.
@@mattadata2 the relay you have is at low level or high level?
@@franciscoribeiro9103 I have it set to LOW.
I know this is old video but do you have one that shows how to hook up multipule reed switches on one power supply for like multiple drawers?
It would be exact same way. Just put reed switch on each drawer and run each wire back to power supply.
Could you describe how to do this with a 5 position mechanical relay for an automotive application?
sorry, I don't know much about that kind of relay.
Thanks for the video. I tried to hook up the relay to my reed switch, but it doesn't work. I triple checked and the wires are all connected correctly. I tried to read your post. You said you forgot to mention in the video is to make sure the jumper is set to the L side, not the H side. What does it mean? Also, when I put the magnet to the reed switch, the relay doesn't click like yours.
Here is a photo of the jumper for the L or H photos.app.goo.gl/Daa1hWzg2W4JgdGL7
You are right, if it is not clicking, its not gonna work. Try the jumper change first.
@@mattadata2 Thanks for your reply, i don't see any photo from the link above. any help appreciated
Forgot to mention i have 16.4 feet of leds.
2 red (+) in dc+
3 black (-) in dc-
1 green (data) in in
?
And you're using 12v supply for both (for Reed switch and led strip) ?
San b - yes. One single 12v supply for both.
2 red (+) in dc+
3 black (-) in dc-
1 green (data) in in
Is this wiring ok as you said !!
And if you don't know the REED SWITCH can work with up to 300vdc 0.55 amp that's a wide rang
Can more than one switch be wired the the same relay and still function independently? Maybe with a fancy controller? Your videos are great! My supplier was telling me all wrong and this helped a ton. He tried to sell me a 50$ controller for each switch for 15 drawers in some cabinets. Thank you!
You could definitely do it with a small micro controller like an Arduino or node Mcu. So you want multiple switch inputs to one relay controlling one load?
I think you could simply put multiple read switches to the same pins on the relay.
Received 2 relays in my order. Wired 1 up exactly how this video shows.I have a green light on the board however when i open the magnetic switch the led's come on accompanied by a red light with the switch open. Is this normal? Now I have a green light and a red light lite up.The switch is cool now but after about 10 minuted the relay gets real hot. Is this normal? I thought the relay was bad so i wired the other up with the results. Are any of these concerns valid?
Not sure about the status of the LEDs...but I think that is fine.
How much current are you pushing through the relay? And what voltage? Just make sure you are under what the relay is rated for. 5V, 12V, 24V etc.
so they have discontinued selling your relay switch that you recommended. what would you recommend now?
This one should work. It is 2 channel, so you will only use “half” the board.
www.amazon.com/dp/B00LW15F42/ref=cm_sw_r_cp_awdb_t1_hMz6Eb126SQWH
@@mattadata2 I ended up getting these. Will these be OK? www.amazon.com/dp/B07WP7C8ZD/ref=cm_sw_r_cp_apa_i_GZz6EbRZHM900
Yep, that will be perfect.
Although using the relay absolutely is better than just using the reed switch (door contact sensor). Keep in mind that these reed switches are only rated for about 0.1A@100VDC (max), 1.0A@10VDC (max), 10W (max)
Hi can i use other relay for high current load? Like 36v 60A ? Which relay should i use with the reed switch?
Hi. Yes, you can use other relays. But 36v 60A is pretty big! You would probably need an automotive style relay or maybe even a solenoid. What are you powering?
Highest I saw was 36v 40 amp amzn.to/3oiYUQX
@@mattadata2 I built my own electric motor fin for my paddle board and i thought of adding a magnetic kill switch. Almost every Electric-fins out there have them built in and i have no idea how they do it 😅 I saw the 36v 40amp but it will just burn out since the constant amp the motor pulling around 48-50A. Will Solid state relay works? 🧐
Cool! Sorry, I really don’t know much about solid-state relays. But I know a solenoid would work. That’s what my golf cart has in it. 48 V and over 200 A
Hi, is the relay can be use for 12volts for car? Now trying to diy for my float but failed, the switch blow. Need your advise sir . THank you
Yes. Just make sure you get the 12v version. amzn.to/3Bj3jbv
@@mattadata2 hi sir, how can i contact maybe by email. I have the diagram but still cannot figure out which to connect. Thank you
mattadata.org/contact/
I was told that ammeter is hooked up on positive before the load and not on the negative side after the load.
So i need to use a push pull reed switch to trigger a 12 volt led for a moped, this will work?? I hope so running out of ideas
Sorry, I don’t understand the question. What are you trying to do?
@@mattadata2 Sorry I have a moped and need to use the brake lever to trigger a reed switch, for a LED brake light. the brake light is powered off of 12 volts motorcycle battery, will this work to convert the 12 volts to signal the reed switch?
Yes. You should be able to control the brake light with the reed switch. But, it doesn’t seem like the best solution to me. I have no idea where or how you would mount the magnet. As long as you can get past that issue, it should work fine.Good luck. Let me know how it turns out.
@@mattadata2 Thank you I got one and got my push pull reed switch, it works like a charm, Thank you for this viedo
That’s great!
Hey...first of all many thanks for ur video...really helped me....can u please let me know the circuit diagram of how to use two magnetic reeds with one relay.....I actually want to do this for my two sliding door wardrobe....
hmmm, great question. Let me think of a solution.
Here is a very simple diagram on how to wire two reed switches in parallel with one relay. Make sense?
photos.app.goo.gl/5T76vsaWFH6NfLPL9
@@mattadata2 so kind of u for a quick reply....but I didnot understand thru the diagram....can u give me the wiring diagram
Can it be used with a load of 24v dc alongwith 24v dc relay module
Yes if you buy the 24v version of the relay. In my demo, I used the 12v version.
Can I simply ground the negative wire instead of running it all the way back to my battery?
Yes, you should be able to assuming you are working on a vehicle with a negative ground frame or similar.
I wonder if a person can use this relay with other reed switches, like running motor and for hobby. I would think they are all exactly the same concept, magnetic switch running on 1/2 amp or get fried sooner than later with higher amp which happens easily.
Yes, should work for any application as long as the relay can handle the load, which is 10 Amps.
What is the Jumper for?
Justin Case - Signal trigger input (High or Low Level Signal, select via jumper)
But when u switch to high then power going thru reed switch is not 5v its 12v hoq to fix that?
The voltage here really doesn't matter....5V or 12V. What does matter is the amperage. The high amp load (Led strip in this case) is going through the relay only.....not the reed switch. The reed switch still has very little amperage going through it.
Just get a module that will work for your needs. I have seen them for 5V, 12V, and 24V
Can you explain the low / high trigger
Not 100% sure, but I think it changes are sensitive the trigger signal is. Some electronics run at 3.3 volts, some run at 5V+. So you can set your relay based on that.
Can we use normal switch instead of reed switch...??
Yes. No problem.
I am not sure if you really needed all this circuit you can simple use a relay on its own. Anyway it may be helpful for people with no knowhow of electrics.
Здравствуйте, схему можно?
Извините, у меня нет схемы.
@@mattadata2 скажите пожалуйста а Вайбер есть? Может быть вы нарисуете и по Вайберу мне отправите? Пожалуйста