Sonoff 16A Switch - Load Test

The Sonoff 16A switch is connected to a 15A load, the internal temperature is monitored. Also tested with a moderate overload.
Inside the Sonoff switch: • Sonoff 16 Amp Wifi Switch
EMI CRH7 fan heater: • EMI Electric Fan Heate...
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Contact info, sending stuff in etc.: xo4.uk/?YTT

[@brookerobertson2951]

I don’t watch your channel for entertainment…. you have a dry sense of humour… But when it comes to electrical safety or information regarding Installation of electrical equipment… you are my number one resource.. respect 100

[@AskZaina]

i am running water pump, 1200 watt, 5.5 am, 220 v daily for 20 minutes, working great

[@telkentexas4053]

JW is my new favourite KZbinr. I get the impression he is brilliant at everything,doesn't matter what it is....Neurosurgery,symphonic compositon,Tekken,take your pick he's probably brilliant at it.

[@proyectosledar]

Thanks John! I will love 30A one, for all my house.

[@scwfan08]

30A for the whole house?

[@kweenbeanhauau8763]

You should find something at least 60A for your house.

[@zjzozn]

A 30Amp would be safer for immersion water heater 👍

[@uzairahmeds]

My household load is under 3kw can I use one sonoff pow r2 to measure mains load? I also use solar inverter to run my household load

[@JaimeUgri]

Grate test, it has helped me a lot, didn't know if it could support a mining rig with 6 video cards working 24/7

[@JohnLee-mi8ez]

I had one of these switches for my electric car home charger rated at 16A. After about 4 months of use, one night I discovered the shell had deformed due to heat stress and there was a very strong burning smell. I cut the fuse at the main board and got rid of it. Probably not the smartest thing I have done, to run the switch at max load over a long period, and I consider myself very lucky. At lower running currents, they are very useful.

[@juliandivett4244]

Funny just bought one thinking about doing the same thing to automate my car charger. Clearly not going to do it now. Did you find an alternative?? Ideally Esp board so can hook up to home automation.

[@gondezo]

Hello John, it is safe to connect 4 Air Cond directly without MCB to sonoff 4ch R3 ? Does it have cut off system when overload or any electrical short? I need your suggestment and information.. Thanx before

[@jwflame]

No, it's just a switch. Overload and fault protection must be installed separately.

[@Stuartino]

Thanks John much appreciated. I will use it as I originally intended.

[@billieastotel9076]

Hello John, I have bought this switch, but I am very nervous about using it as the terminals are just spring loaded which seems a bit dodgy for 15 A (I am using it on an immersion heater), what do you think? I know there is a stress relief plate but this is also very flimsy holding all conductors with just one small screw into the plastic housing. Would you be confident using it for a 15A load??

[@dg2908]

Have you done a video before about how much of its rated current a BS1362 fuse can pass forever? Last week I came across another slightly unrolled 10A cassette reel in a community venue with deformed flex thanks to the 3kW heater plugged into it along with a few other items... 10A fuse in the extension lead plug

[@GlennPierce]

Thanks John. What do the Uk regulations say about wiring devices like this to say a house lighting circuit. I have seen people for example wire a lighting switch to the GPIO of this device to keep the existing switch working while providing wifi control. Is that allowed or do regulations not touch on that kind of thing ?

[@warnamu_com]

thank you for this test, you are awesome

[@grantrobertson4306]

Hi John - and thanks for the video. I have a question for you (or any electrical boffin) : you mention an inductive load like the vacuum cleaner, has that initial spike which is over load. If you're running on and off an inductive load (and thus, briefly overloading) - do you think this could be an issue?

[@singhparambir]

Thank you. Can you clarify what is recommended value of fuse? Mine blew yesterday. It was connected to an air conditioner. It normally draws 9 amps max. I don't know at some point there might have been a malfunction. I checked that the track has burnt and fuse blown. Track is ok though when checked through multimeter. So please advise the rating of replacement fuse. Thanks

[@gabsmit]

Great video John. All I wanted to know. 👍

[@billieastotel9076]

Great video, just what I wanted to see.

[@ColinRichardson]

John: Do you know if there are sockets out there that can show a "load level" of what is plugged into it? Or even one that could beep if it goes above 13amps for say 2 seconds (so we can ignore the spike) ??

[@zjzozn]

SONOFF do a module ‘POW R2’ with load monitoring with shut off 😁

[@thromboid]

Worth doing this sort of test - I have a remote-controlled plug/outlet adapter that sometimes sticks on when used with a heavy (but within rated limits) load. Not ideal!

[@tadeuszjendrys2902]

Hello. I am sorry for my English. I am using the translator. Did you measure the maximum current that sonoff power can measure without a relay? The relay is bridged with 2.5mm2 copper and we measure how long it can withstand. greetings. Tadzik

[@MrVaskiss]

It would be interesting to see the same test with new Sonoff mini R3 (also rated as 16A), ideally compared to Shelly analog relay.

[@James-4812]

Have you ever noticed with Fan heaters, when you turn them off at the mains socket, there is usually a spark behind the switch button, sometimes it makes you jump. Other appliances can do the same thing, but fan heaters are the worst!

[@frontdeskdominickstreetapa9019]

Hi, Just wondering if the Sonoff Touch(That's if you've tried them) works with the normal two-core-and-earth cable? Thanks

[@ID3driver]

Would the 16a version be safe for an immersion heater in the UK, I'm looking for a smart way of controlling as on agile electricity and can't see any smart times that can handle the load. I need something which is ifttt compatible

[@sean999ification]

Any chance of giving it 30A for a laugh?

[@ronbonick4265]

Thanks bro , keep'em coming

[@Debraj1978]

Thanks for the detailed review unlike others, who are least aware of the limits of this device. Other review just focus on the android app and wifi setting. Considering you were at a low ambient (8 deg C) and then the temperature raised to 59 deg C, that is 50 deg c rise. If I do the same in India, where ambient is around 35 deg C, will this rise cause a concern?

[@hasanmaz608]

13 minutes ago Hi, John , merry christmas & happy New Year , wish you all the best. Would you please do a video on an open socket outlet, with your usual great in -depth explanation . Thank you so much.

[@uzairahmeds]

My household load is under 3kw can I use one sonoff pow r2 to measure mains load? I also use solar inverter to run my household load

[@Cd1988B]

I’m using this on my 3kW geyser. Any recommendations why I should not. Pulling about 13.5A Max.

[@dodegkr]

great vid, thanks, makes me feel safer running a few led lights on these !

[@jonj9577]

Pretty Impressive and useful video. Just a quick Question, Can I use a 15a Sonoff device in a 10A circuit. I mean 10A input to 10A 2400w Max load. SorryI am totally a newbie on this

[@jwflame]

Yes, 15A is the maximum rating, no problem to use it with less.

[@Antechan]

Hi John, thanks for the informative video. I am intending to use one of these switches for my water heater that is rated max 3000W. I live in Singapore where the voltage is 220-240V, so that will make it 12.5A-13.5A That would be ok for a single load right? Cos I read somewhere this thing can only support up to 10A on single load while going up to 16A on multiple loads? Can you please help to confirm? Sorry if my question sounds too naive/ trivial. Thanks in advance :D

[@jwflame]

it's 16A - doesn't matter if that is one load or several, as long as the total is 16A or less. A 3kW kettle will be ok, it's much less than 16A.

[@Antechan]

Thank you for the reply. That was really helpful.

[@Hurleyandroid]

@@Antechan Have you already aply to your water heater system? I want to do the same. It work whit not problem? thanks

[@Techno_Basil]

@John Since you did the stress test. Do you think this device would handle 4 T12 Ballast's, because I would like to attach it to my florescent fixtures. The light wattage as a total is 320 watts, but I'm unsure of the ballast amperage.

[@jwflame]

Yes, that will be fine - 320 watts is only about 1.4 amps, and even allowing for double as they are fluorescents, that's still only about 3A, far less than the 16 it is rated for.

[@Techno_Basil]

Thanks!

[@g18210]

Why you don t use o contractor relay in combination with sonoff ??????? Do it and upload a video

[@Hurleyandroid]

It good idea

[@simonbentley2020]

hi john do you know why sonoff dont have a normal 16amp switch like their light switch 86*86 which you put into the wall? really want to get one for our boiler that i need the same kind of switch just 16amps.

[@zjzozn]

Simon Bentley timeguard do one fst wifi. Only works with their app. It’s not too bad

[@gertnel9421]

Hi John Very good an informative youtube, thank you. I was very interested why a ceramic fuse of 20 amp was used as you rightly pointed out. The answer became apparent when I read the features and specs of the device from the manufacturer. The reason is that you can with the software, mobile eWeLink app, specify that you want cut out at certain value of amps, volts etc. This would really be great if you could repeat the test after having set some of these max allowed values in the app for the device. Many thanks for the advice though.

[@Mandrag0ras]

What ever you do with the software, it cannot improve the limitations of the hardware. The relay, as said in another video, is rated for 16A of resistive load and the second rating of 10A @ 250 Vac is probably for inductive loads. It's possible that other components of the device have the same rating/limits. Keep in mind that the fat track of copper and solder on the pcb reached 80+ degrees C at full load, so imagine what's gonna happen at the spring terminals at full load over an extended period of time. So, I don't believe exceeding the rating of 16A would be a good idea.

[@iamdarkyoshi]

1250w hoover is banned now due to power draw? Lets say you used it for 10 minutes. With a less powerful motor, it'd likely take longer than 10 min to do the job, so sure, it takes less power, but you end up using the same amount of energy lol

[@jwflame]

+Luke Den Hartog www.bbc.co.uk/news/business-41119355

[@ColinRichardson]

Be nice if there was a nicer way to represent both total air flow and strength of suction. Though, if I seen a 2000watt Dyson, I would get that over a 2200 watt unbranded crap.

[@alistairstuart2009]

When we get out of the EU will we get our high power vacuums back?

[@ColinRichardson]

Depends if you want High powered, but inefficient (eg has suction power of 6) or Low powered but efficient (eg has suction power of 8). The point of the EU law is having efficiency over wasteful.. There are 1.0 litre ECO cars that are more powerful than 3 litre engines of the olden days.. I know which one I would prefer... Once all the trash brands that are relying on wasting high amount of energy to "keep up" have vanished.. and you have all innovation wars of "what's the most powerful suction we can get with 900watts" then decide if you want to go back to the cheap brands that cause your electricity bill to go through the roof for no reason other than, they are crap at making vacuums.

[@stefantrethan]

Better than the unrealistic power ratings on vacuum cleaners and air compressors in the US that well exceed the power capability of the outlet... The idea is that they are forced to get more efficient. I do not like bans like this, but would have liked a mandatory suction rating instead, that accounted for real world conditions. For example measure the vacuum pressure with a standardized orifice after sucking up 1/2 kg of flour or something. As it was buyers just went for the highest power rating, or the one that made the most noise, which obviously did not encourage improvement.

[@Dew_-km7gr]

Do you think my Sonoff th16 could handle 255 volts consistent ??

[@devymandagi2110]

Thanks john. This video really help. I plan to use it for my Air conditioner (AC) 10 Amp for daily use. Is it possible with this 16 Amp sonnoff ?? Without risk for burn, if i turn on the air con for 15-20 hours?? Please i really need your opinion. Thanks so much

[@jwflame]

No problem as long as the load is rated less than the sonoff.

[@FelipeRFranca]

Hi John, I would like to connect my air conditioner on Sonoff Dual 16A (10A/gang). Do you think that is safe if I split the energy in each gang? And turn on/off both channels at the same time?

[@jwflame]

No, if you use both channels for the same load, one of them will be damaged, as even if switched at the same time, they are still two separate relays, and one will close and open fractionally before another one, so most of the load will end up on one of the contacts. You need a device which is rated to the whole load with only one contact / gang.

[@FelipeRFranca]

John Ward, thank you for the response. I will try to find a way

[@Strider9655]

Please folks don't connect heaters to these things, the manufacturers tell you not to do it and heaters should never be left unattended, especially the cheap 2KW fan heaters (which like to turn into a ball of melted plastic when the fans fail), but equally i've had some pretty expensive space heaters that have failed quite spectacularly too.

[@anthonysibley1021]

Its perfectly acceptable to use them as a High Power load for testing purposes, But I do agree that they should not be left unattended

[@Strider9655]

Ooops I didn't specify that I mean't outside of testing conditions :)

[@longrunner258]

Seriously guys, *give up* with this line; I'm completely immune from (theoretically) baseless cop-outs like this. Far from protecting anyone (in the long term), repeating this claim is merely excusing the manufacturers from engineering their products *properly* (i.e. to stay safe).

[@flaviopires190]

Otimo video meu amigo! boa explicacao. se puder fazer mais testes com outros interruptores wifi !! Obrigado

[@helliko2430]

Can this work with a U.S. 240 volt 3 prong outlet and if so how should it be wired? The main issue I see is that U.S. 240s are synthesized from two 120 volt circuits so two of the prongs are "hot" where the third is used as both ground and neutral.

[@OldLordSpeedy]

helliko2 sonoff for USA exist. For non-DIY people you can buy one with US male plug in / US female plug off. IMHO should 120V lines use different connectors as for 240V lines! CEE system exists! Different cable code too!

[@eumesmo-kd1tr]

Great job man thanks

[@leslew778]

Would a 45w inline extractor fan and 2 led bulbs be ok to run on this

[@jwflame]

Yes, that's less than 1 amp.

[@leslew778]

@@jwflame great. Thanks John.

[@niallers8572]

Hi John can you do a video about fiber optic terminations

[@flaviopires190]

Ganhou um inscrito !!

[@naohwatson854]

60C sounds like a lot heating at 8C. On a hot summer day that would reach 80C on a table and probably close to +100C in a place with poor ventilation. It seem like it is just waiting to fail with such loads.

[@jwflame]

60C was the temperature of the PCB track, air temp inside the case will be significantly less.

[@ihnwtpu]

Actually he said the room temperature was around 18C at that point.

[@muhammedabbas242]

@@jwflame Anyway ... These types of small D.C. relays that soldered into PCBs are not practical with loads more than 5A. ~ 8A. They will be very dangerous above that.

[@zjzozn]

It’s the appliance fault condition that worries me...... boom before the 20A, even 13A fuse pops or 16/20/32A MCB trips 🤩

[@stefantrethan]

I guess that's one way to melt the snow on your shed ;-)

[@hasanmaz608]

Hi, John & happy New Year , wish you the best. Would you please do a video on an open socket outlet, with your usual great in -depth explanation . Thank you so much.

[@jonathancook4022]

Any idea if they make a 32amp version?

[@ColinRichardson]

32 amps? How thick are the wires in your house?

[@zadintuvas1]

Just connect a contactor to a sonoff

[@AsusEpoxy]

was thinking of that, but will lose the ability to measure power consumption

[@Equiluxe1]

Those electrolytic capacitors wont last very long at that temperature, I expect that they are not 105 deg. rated ones.

[@PetervanHofwegen]

they actually are rated at 105 deg. which you can see in the previous video ;)

[@chudyf]

I was hoping for overload protection to trip

[@cjwest9094]

They do have ops feature in the ewelink app, however would still prefer a hard limit as opposed to potentially buggy software

[@ronbonick4265]

what voltage ???

[@jwflame]

240V for the test. Device rated to 250V max.

[@nutsnproud6932]

John, Are you aware of a design fault on the TM-902C you use? I fixed mine following kzbin.info/www/bejne/roaZXmp9ZruEq8U