Hope you all enjoyed having a look inside the welded contactor, such a common fail on these you would think you could by each contactor individually but I haven't tracked any down yet! Next week's episode will follow the build of our new office building inside our workshop building so see you all again then! Have a great weekend and thanks for watching! Remember, if you have any questions add #AskEdd to your comment....Thanks.
My guess is they are custom parts for the application, or quite possibly the part number is unique to this application. Obviously Panasonic make them, but as to the availability aftermarket, that could be tricky. Thankfully the whole assembly isn't that expensive, which comes with everything needed to restore the function for many years to come.
Replying to @eddchina: PUT ONE END OF A 1 INCH DIAMETER HOSE ON YOUR BELLY BUTTON AND CONNECT THE OTHER END OF SAID HOSE TO ANOTHER BELLY BUTTON AND GO **SSSSSSSSS**
@@eddchina PUT ONE END OF A 1 INCH DIAMETER HOSE ON YOUR BELLY BUTTON AND CONNECT THE OTHER END OF SAID HOSE TO ANOTHER BELLY BUTTON AND GO **SSSSSSSSS**
@@eddchina I mean Technology Connections made 2 whole videos about contactors and a ton of people watched. Slap a car on that contactor, and you have double the audience! We're here for the long run!
Of course we want to see your work on boats also. You're no one trick poney Edd. I'd happily watch you working on trains, planes, automobiles or boats.
Hello, Edd! I might be able to shed some light on the current rating of that contactor. The contactor is rated for 120A of constant current load. This represents the thermal limit of the metal parts and their ability to dissipate losses into the surrounding environment without becoming too hot and sustaining damage. The key factor here is time. It takes a significant amount of time (minutes) for the contactor to heat up to the maximum permitted temperature at a 120A load. Here's the fun part: Because the cruising power consumption at motorway speeds is approximately 20kW for a Nissan Leaf, you are only loading the contactor with around 60A. The maximum power of 80kW is only used during hard acceleration. In these scenarios, the contactor is loaded above its maximum constant current rating, but since this duration is limited, the metal parts inside don’t dissipate enough energy to heat up excessively. Once you reach cruising speeds, the contactor is only loaded to a quarter of its maximum thermal capacity (half the rated current results in a quarter of the maximum thermal losses), allowing the contacts to cool down again. The same principle applies to electric motors used in electric drivetrains. They can deliver immense power and torque, but only for a limited time before requiring a cooling period. The driver doesn’t need to worry about this because the motor control unit monitors the motor’s winding temperature and reduces output torque to prevent overheating. You’re unlikely to notice this as a driver unless you are, for example, towing something heavy up a steep hill. tl;dr: You can safely exceed the rated current of a contactor for a limited duration.
Thank you. Nice explanation. In that case it will make sense to uprate the contactors in our new Electric Ice Cream Van record attempt so we can use more current for longer. Better cool the batteries a bit too then I suppose!
@davidjereb you're correct, but the problem (as Edd brushed the topic of in the EV service episode) is the capacitors in the Leaf. If there's any kind of leaking current that drains the capacitors, the current in the moment the contactors engage will far exceed the nominal capacity. Especially if the control resistor is also faulty. My bet is that the current (in the moment of contact) could be as high as 300 Amps, and that's far more than these contactors can withstand (even for a short time). That's probably also why you exchange the complete module instead of just a new contactor.
I'm and electrical engineer and I design inverters. Big contactors are like a necessary evil because you really need them, but if they open on an inductive load with basically any current going through them they're prone to arcing. Also, the voltage and current ratings aren't really ratings for power, since when the contacts are open, there's no current through it, and when the contacts are closed there's no voltage across them. Its likely the maximum current expected to go through it is 80 amps or less on a 100 amp contactor at full load (I'm not sure what kind of derating they use in EVs it might be more or less than 80%).
As a retired sparkie, the last thing I would ever want to own is an EV car, but I find your program fascinating as you delve into the details and practical stuff, its fascinating and I learnt a great deal, like James May on steroids
The atmosphere of the contacter is probably sulfurhexafuoride (SF6). Very dense, and good at suppressing sparks. Not toxic, but a very strong greenhouse gas.
The current rating on the contactor may be the breaking capacity rather than the sustained current rating. Breaking capacity will be much lower than sustained rating as it’s the arc that damages the contacts. Once closed there will just be some resistive heating. Normally in a car the contactor disconnects when you’re stationary and switching off, so the current should be low. On my EV I just see the power jumping to 30 amps in bursts when stationary just for the heater or the DC/DC 12v charger.
We are always happy when you upload new videos Edd. Happy new year to you too. Of course we want to see boat fixing videos too so keep them coming!!!!!!!
Love seeing all the restorations and projects along with the explanations on stuff that I wouldn’t normally come across in everyday life. Really liking the updates in each episode about what’s happening in the workshop generally too. Great channel 👍
Hey edd! I think you should make videos on just about anything. For most of us, we can relate because every guy who works with their hands knows, you jump from one thing to the next depending on the mood, budget or waiting for parts. The important thing, is that you keep making videos and showing us what you are working on. Back to work! Lol 😆
More of everything please Edd, it’s a joy to have you regularly back on TH-cam. I’m loving the paint job idea for the river launch and how that necessitates a bow thruster! 😉 If you want the ultimate in manoeuvrability build your own azimuth thruster for the stern then all your low speed steering issues are gone! ⛴️
Greetings, Edd! I appreciate the reason for you putting out several 'strands' of video at once; TH-cam's viewer-analysis stats for content creators go into great detail of who's watching what, for how long, and what they thought about it. And where they live. And maybe what they're wearing and what they had for breakfast. Essential data for a bod trying to tailor his output to an eager but fickle audience. I'm not fickle, but I'm probably the worst kind of viewer to analyse. I watch ALL of your videos to the end. I like ALL of your videos, whatever the subject. I give all of your videos a 'Like' because I enjoy the content, whether it's a bunch of guys sitting around chatting and quaffing tea, or a bunch of guys repairing stuff, or a bunch of guys talking about sitting around chatting, quaffing tea and repairing stuff. I don't suppose that's very helpful. I'm based in the north of England at the moment (West Yorkshire). I'm skint. I'm single. I'm a girlie-girl. I'm straight. I had hot sweet milky tea, buttered toast and marmalade for breakfast. I'm an unapologetic petrolhead and used to be a rally driver [amateur] back in the Group-B era and did the (East African) Safari twice. I'll watch anything you care to upload. You Tube may have to invent a whole new demographic category for me. The bottom line is: yes to everything. The boat? Great. Chassis? Yep. EV? Why not. It's all fascinating and entertaining, so you do whatever you're most comfortable doing, and I'll continue to watch and enjoy. It ain't what you do, it's the way that you do it, dear boy.😁 So please just keep doing it.
Welded contacts, the achilles heel of just about every high current relay/contactor ever made. I had this happen on my Toyota starter motor, 4kw @ 24v and around 160A with contacts MUCH larger than this. Despite the fact that this contactor failed, the spark suppression must be pretty good to get away with contacts that small IMO. At least DC arcing doesn't produce RF interference you can get with AC.
That's true and the EV's AC inverter would buzz a lot more without all of the screening in the cables etc. I remember seeing a very cool AC arc speaker years ago and a few people taking that to new levels here on YT too...
How your hands don't look like an old dartboard is beyond me. The boat and the Range Rover get my vote! It's great to get regular videos from you again Sir.
Thank you, have to be thick skinned to be on YOuTube so perhaps my hands have extra protection?! Thanks for watching, all of the above projects will be on their way soon!
@eddchina I'd really love to see a Talbot campervan getting it's clutch and synchro gears done. By an amazing stroke of luck I happen to have one, if you fancy it? 😉
13:15 The ceramic insulator is probably not *beryllium oxide* , but if it is then you should run away. It's safe, right up until it gets shattered or cracked and its dust gets into your lungs. Sometimes they're clearly marked with a BeO warning... Sometimes.
I really doubt it's BeO - that's normally only used when you need something to be both an excellent electrical insulator and an excellent thermal conductor.
I'm happy to watch whatever you work on. The only thing I would like is a reasonably regular schedule. This seems to be happening now, which is great to see.
10:30 Firstly, the power printed on a motor can mean many things. It can mean the peak power the motor can produce, it can also be the peak continuous power the motor can produce, or the peak continuous thermally limited power a motor can produce, and/or many other definitions. The peak current draw might be as high, but the nominal current draw much lower. The capacitors would be able to supply the short term power pulse, and 'smooth out' the current from the battery (hence have a lower current draw through the relays). Meanwhile the current printed on the relay might be nominal current draw, but still able to handle much higher current pulses for short durations. It all depends on the definitions in the datasheet, I am sure the engineers have done their homework.
I really like all the technical, nerdy, geeky, fun & interesting modifying & building things you get up to (yes I would like to see you fit a bow thruster) Edit: are you going to use a heat-pump to heat/cool you office?
Never seen anyone mentioning proper servicing of an EV before you. Replacing battery on every issue without proper diagnosis contradicts the main purpose of EVs. Hopefully more people starts worrying about this problem
I've watched many videos about contactors in HVAC systems. Very similar failure issues. Which, to a much smaller context, reminds me of the points in old cars.
Sometimes switch contacts are rated for the *SWITCHING* current, and they may be able to *carry* more current than that when engaged. It would be presumed that the highest current situations (hard acceleration) would not include moving the Contactor at that time. The Contactor would be actually switching on and off when turning the car ON or OFF. ...Maybe...
I'm stunned how small that contactor is/was. I would have expected something much more beefy. Maybe that is why it failed. A bit of built in obsolescence? Also +1 to see the boat back in the water
1 Vote for the boat resto. Big vote for the fast red car! Electrical stuff too detailed for me but I get others enjoy it. Love the John content, funny man. Thanks Edd.
Happy New Year Edd... looking forward to the office build... and the boat... and the Range Rover... and the Ferrari... and anything else you want really. 👍
I’m a long-term Ed China fan, plus viewer of this channel since basically the start. But it was so disappointing when, after having got us all so invested in the channel with Workshop Diaries however long ago it was (at lest 3.5 years ago if not more), you just disappeared without word or explanation. Can you tell us you won’t miss just up and leave again in a few months time?
In short, another component designed to operate on the edge of failure. All those pennies and grams of weight saved got some middle manager a big fat bonus.
show all types of things your doing its all fun and interesting but it may also hurt your youtube algorithm not sticking to one thing, but i hope you do show everything your restoring/fixing in detail.
Whilst they have a custom part number for the Nissan application, they're just standard Panasonic AEV14012 contactors different mounting ears. The specifications are 120 Amp continuous, 225 Amp for 3 minutes and 400 Amp for 30 seconds with 38mm2 busbars (conducting heat away). They are Hydrogen filled and fitted with magnetic blowouts to help quench an arc if opened under load.
@@eddchina You need the Nissan specific version for a direct drop in and I don't think they're available from Nissan (I've got a couple of used ones to hand) . I've used Kiovac, or Albright contactors as replacements. Both have higher current ratings. The EV200 has a 200 amp continuous rating and is readily available from Farnell, Mouser etc. I usually call Dalroad Norso, they're very helpful.
Your math is correct.... IF the motor is DC. It's the same problem as with almost all other consumer electronics. The manufacturers save where they can, so things like these contactors aren't dimentioned with the redundancy needed for 20+ years of use. BTW, the ceramics is just for electrical insulation. I sincerely doubt that it's fully encapsulated to provide a "no oxygen" environment.
definitely wanna see what ever projects get finished ✅ over time. I’d try and bar the engine over without the spark plugs, and water pump attached. Definitely oil change, drop the oil pan. I’d inspect the bearings just to be safe and rings. Inspect the bore for scoring. Valves need to be cleaned. Valve adjustment. But definitely need to fix the paint. Ferrari’s you don’t abuse one for what they cost. Water pump may be rebuilt most likely a bearing went.
Slightly different but same. Bought my son a Kia with non working windows. Took switch apart and quick sand of contacts and hey presto all working at zero cost
I bet you James May could have built you a Range Rover out of Meccano. Yes to the boat restoration. Perhaps at a later date a motorcycle as well. A nice older Triumph for example.
Hope you all enjoyed having a look inside the welded contactor, such a common fail on these you would think you could by each contactor individually but I haven't tracked any down yet!
Next week's episode will follow the build of our new office building inside our workshop building so see you all again then! Have a great weekend and thanks for watching!
Remember, if you have any questions add #AskEdd to your comment....Thanks.
My guess is they are custom parts for the application, or quite possibly the part number is unique to this application. Obviously Panasonic make them, but as to the availability aftermarket, that could be tricky.
Thankfully the whole assembly isn't that expensive, which comes with everything needed to restore the function for many years to come.
Solid State replacement for the Contactors?
Replying to @eddchina:
PUT ONE END OF A 1 INCH DIAMETER HOSE ON YOUR BELLY BUTTON AND CONNECT THE OTHER END OF SAID HOSE TO ANOTHER BELLY BUTTON AND GO **SSSSSSSSS**
Definitely want to see all of the restorations. Boats, cars, tricycles !! I’m down.
Cool, thanks. I better get back in the workshop and get cracking!
Voting +1 on showing the boat restoration, more content is always better
More content it is, be great to get the boat back in the water this year too!
@@eddchina
PUT ONE END OF A 1 INCH DIAMETER HOSE ON YOUR BELLY BUTTON AND CONNECT THE OTHER END OF SAID HOSE TO ANOTHER BELLY BUTTON
@@eddchina
PUT ONE END OF A 1 INCH DIAMETER HOSE ON YOUR BELLY BUTTON AND CONNECT THE OTHER END OF SAID HOSE TO ANOTHER BELLY BUTTON AND GO **SSSSSSSSS**
@@eddchinaplease do my friend 🙏🏻
"Do you want to see us restore a boat?" ...Edd, we're watching u tear down a contactor.. we watch everything 😂❤
True, thanks for watching, need to re-arrange my sock draw so I'll grab the camera!!
@@eddchina I mean Technology Connections made 2 whole videos about contactors and a ton of people watched. Slap a car on that contactor, and you have double the audience!
We're here for the long run!
Of course we want to see your work on boats also. You're no one trick poney Edd. I'd happily watch you working on trains, planes, automobiles or boats.
That is brilliant news, definitely want to keep broadening the scope of the engineering we cover in our videos! Watch this space...
Rebuilding Deltic diesel would be nice :)
I'm sure a pacer would fit
Hello, Edd!
I might be able to shed some light on the current rating of that contactor.
The contactor is rated for 120A of constant current load. This represents the thermal limit of the metal parts and their ability to dissipate losses into the surrounding environment without becoming too hot and sustaining damage. The key factor here is time. It takes a significant amount of time (minutes) for the contactor to heat up to the maximum permitted temperature at a 120A load.
Here's the fun part: Because the cruising power consumption at motorway speeds is approximately 20kW for a Nissan Leaf, you are only loading the contactor with around 60A. The maximum power of 80kW is only used during hard acceleration. In these scenarios, the contactor is loaded above its maximum constant current rating, but since this duration is limited, the metal parts inside don’t dissipate enough energy to heat up excessively. Once you reach cruising speeds, the contactor is only loaded to a quarter of its maximum thermal capacity (half the rated current results in a quarter of the maximum thermal losses), allowing the contacts to cool down again.
The same principle applies to electric motors used in electric drivetrains. They can deliver immense power and torque, but only for a limited time before requiring a cooling period. The driver doesn’t need to worry about this because the motor control unit monitors the motor’s winding temperature and reduces output torque to prevent overheating. You’re unlikely to notice this as a driver unless you are, for example, towing something heavy up a steep hill.
tl;dr: You can safely exceed the rated current of a contactor for a limited duration.
Thank you. Nice explanation. In that case it will make sense to uprate the contactors in our new Electric Ice Cream Van record attempt so we can use more current for longer. Better cool the batteries a bit too then I suppose!
Yes you’ll find in a lot of electronics the headline rating is just a nominal value, that applies a particular scenario.
@davidjereb you're correct, but the problem (as Edd brushed the topic of in the EV service episode) is the capacitors in the Leaf.
If there's any kind of leaking current that drains the capacitors, the current in the moment the contactors engage will far exceed the nominal capacity. Especially if the control resistor is also faulty.
My bet is that the current (in the moment of contact) could be as high as 300 Amps, and that's far more than these contactors can withstand (even for a short time).
That's probably also why you exchange the complete module instead of just a new contactor.
Thanks for that! I love getting smarter every day.
Fair enough. But that contact looks like a spot welder. If it's a common issue on the Leaf presumably it's been underspecced for the job.
I'm and electrical engineer and I design inverters. Big contactors are like a necessary evil because you really need them, but if they open on an inductive load with basically any current going through them they're prone to arcing. Also, the voltage and current ratings aren't really ratings for power, since when the contacts are open, there's no current through it, and when the contacts are closed there's no voltage across them. Its likely the maximum current expected to go through it is 80 amps or less on a 100 amp contactor at full load (I'm not sure what kind of derating they use in EVs it might be more or less than 80%).
As a retired sparkie, the last thing I would ever want to own is an EV car, but I find your program fascinating as you delve into the details and practical stuff, its fascinating and I learnt a great deal, like James May on steroids
Yes, please, to the boat video. I always enjoy and learn from the content you post. Thanks!
Fantastic! Thanks for watching, more boat stuff to come then...
The atmosphere of the contacter is probably sulfurhexafuoride (SF6). Very dense, and good at suppressing sparks. Not toxic, but a very strong greenhouse gas.
aka The other funny voice gas.
Thanks. Oops! maybe I can still scoop it up off the floor?! I seem to remember there being a shortage of it in Germany a while back.
@@eddchina Just very diluted. You can find a fun video where they have an aquarium filled with SF6, and float a boat made from aluminium foil in it.
The current rating on the contactor may be the breaking capacity rather than the sustained current rating. Breaking capacity will be much lower than sustained rating as it’s the arc that damages the contacts. Once closed there will just be some resistive heating. Normally in a car the contactor disconnects when you’re stationary and switching off, so the current should be low. On my EV I just see the power jumping to 30 amps in bursts when stationary just for the heater or the DC/DC 12v charger.
Thank you. That's got to be it, makes a lot of sense!
I was just commenting on another video how I watch people clearing up their workshops so I will watch anything you do!!!
All Edd content is good content, so yes I want it all. Or as much as you can keep up with. Always learning from your videos, so the more the merrier.
Thanks very much, we are aiming for weekly offerings for as long as we can...
Thanks Ed.EV's have recently peaked my interests. Thanks for the shop update.Bring on the boat build !!!
Bringing the boat jobs up the list as we speak! Watch this space...
Yes to the updates. Amazing to see such a tiny bit of metal responsible for everything.
You would have thought a slightly more butch version wouldn't have cost that much more and would have been so much more reliable!
Boats, cars, office builds, you record Edd, I’ll be here watching it!
We are always happy when you upload new videos Edd. Happy new year to you too. Of course we want to see boat fixing videos too so keep them coming!!!!!!!
Thank you. I'll add the boat jobs to the list. After we've had a bit more progress with the Ferrari and the Range Rover, of course!
Love seeing all the restorations and projects along with the explanations on stuff that I wouldn’t normally come across in everyday life. Really liking the updates in each episode about what’s happening in the workshop generally too. Great channel 👍
Hey edd! I think you should make videos on just about anything. For most of us, we can relate because every guy who works with their hands knows, you jump from one thing to the next depending on the mood, budget or waiting for parts. The important thing, is that you keep making videos and showing us what you are working on. Back to work! Lol 😆
Yes to the boat. I am very interested in the bow thruster installation.
More of everything please Edd, it’s a joy to have you regularly back on TH-cam. I’m loving the paint job idea for the river launch and how that necessitates a bow thruster! 😉 If you want the ultimate in manoeuvrability build your own azimuth thruster for the stern then all your low speed steering issues are gone! ⛴️
Hey Edd;), Happy New Year to you too ! I personally would love to see any progress, so yeah can’t wait 💪Thanks!!
Yes... please show maximum content, including a fab video on the boat bow thruster.
Thanks
Happy new year to you too, dear Edd !
Love the channel -the content changes and gives greater appeal of interest with all the projects - Hi from New Zealand
Hello New Zealand! In that case more boat stuff to come and definitely some car boat (amphibious) stuff too when I get the chance!...
@@eddchina love to see the boat
GREAT TO SEE YOU BACK A VERY HAPPY 2025 LOVE TO SEE MORE OF YOU PLEASE .
Happy 2025 to you too! Working on weekly if we possibly can!
Greetings, Edd! I appreciate the reason for you putting out several 'strands' of video at once; TH-cam's viewer-analysis stats for content creators go into great detail of who's watching what, for how long, and what they thought about it. And where they live. And maybe what they're wearing and what they had for breakfast. Essential data for a bod trying to tailor his output to an eager but fickle audience.
I'm not fickle, but I'm probably the worst kind of viewer to analyse. I watch ALL of your videos to the end. I like ALL of your videos, whatever the subject. I give all of your videos a 'Like' because I enjoy the content, whether it's a bunch of guys sitting around chatting and quaffing tea, or a bunch of guys repairing stuff, or a bunch of guys talking about sitting around chatting, quaffing tea and repairing stuff.
I don't suppose that's very helpful. I'm based in the north of England at the moment (West Yorkshire). I'm skint. I'm single. I'm a girlie-girl. I'm straight. I had hot sweet milky tea, buttered toast and marmalade for breakfast. I'm an unapologetic petrolhead and used to be a rally driver [amateur] back in the Group-B era and did the (East African) Safari twice. I'll watch anything you care to upload.
You Tube may have to invent a whole new demographic category for me.
The bottom line is: yes to everything. The boat? Great. Chassis? Yep. EV? Why not. It's all fascinating and entertaining, so you do whatever you're most comfortable doing, and I'll continue to watch and enjoy.
It ain't what you do, it's the way that you do it, dear boy.😁 So please just keep doing it.
Great video great mechanic Edd China nice to see you again ❤
To see you nice! Thanks for watching!
Everyone knows your a very busy man,therefore we want to see everything only the construction and mechanical conquests obviously .. great stuff Edd
Squeezing all the jobs in and then filming them too definitely makes for more busyness!
Failure analysis, Clive would be proud.
And it wasn't even my fault! For a change!!
So glad to see you again and hope to enjoy many more of your adventures !
Welded contacts, the achilles heel of just about every high current relay/contactor ever made. I had this happen on my Toyota starter motor, 4kw @ 24v and around 160A with contacts MUCH larger than this. Despite the fact that this contactor failed, the spark suppression must be pretty good to get away with contacts that small IMO. At least DC arcing doesn't produce RF interference you can get with AC.
That's true and the EV's AC inverter would buzz a lot more without all of the screening in the cables etc. I remember seeing a very cool AC arc speaker years ago and a few people taking that to new levels here on YT too...
How your hands don't look like an old dartboard is beyond me.
The boat and the Range Rover get my vote! It's great to get regular videos from you again Sir.
Thank you, have to be thick skinned to be on YOuTube so perhaps my hands have extra protection?! Thanks for watching, all of the above projects will be on their way soon!
@eddchina I'd really love to see a Talbot campervan getting it's clutch and synchro gears done. By an amazing stroke of luck I happen to have one, if you fancy it? 😉
Cannot wait to see you working on the range Rover build and yes would like to see some videos of the boat as well. Take care
My kind of engineer. If it breaks, fix it. If you can't fix it, break it the rest of the way to see how it works!
Absolutely, I'm very good a breaking things!
13:15 The ceramic insulator is probably not *beryllium oxide* , but if it is then you should run away.
It's safe, right up until it gets shattered or cracked and its dust gets into your lungs.
Sometimes they're clearly marked with a BeO warning... Sometimes.
I really doubt it's BeO - that's normally only used when you need something to be both an excellent electrical insulator and an excellent thermal conductor.
Can’t wait to see what 2025 brings for you, Edd. Don’t burn yourself out though!
I'd love to see more on the boat Edd!
Keep up the great work.
Thank you, will do!
I'm happy to watch whatever you work on. The only thing I would like is a reasonably regular schedule. This seems to be happening now, which is great to see.
That was very interesting to see the contactor, thanks Edd.
You are very welcome, it was a great suggestion to have a deeper look!
Looks like a old set of points that have been arching.mad to think it was so much work to get to repair that
10:30 Firstly, the power printed on a motor can mean many things. It can mean the peak power the motor can produce, it can also be the peak continuous power the motor can produce, or the peak continuous thermally limited power a motor can produce, and/or many other definitions. The peak current draw might be as high, but the nominal current draw much lower. The capacitors would be able to supply the short term power pulse, and 'smooth out' the current from the battery (hence have a lower current draw through the relays).
Meanwhile the current printed on the relay might be nominal current draw, but still able to handle much higher current pulses for short durations. It all depends on the definitions in the datasheet, I am sure the engineers have done their homework.
We are here to see you work on anything Edd ! .... Haffren was also very entertaining !
Thank you. Hafren was an interesting project for sure and I think Phantom will definitely float your boat too!
It's nice to see the Vice Of Knowledge works.
Happy New Year Edd, Nice to see the chassis again. Boat changes sound interesting definitely include it please.
I really like all the technical, nerdy, geeky, fun & interesting modifying & building things you get up to (yes I would like to see you fit a bow thruster) Edit: are you going to use a heat-pump to heat/cool you office?
Never seen anyone mentioning proper servicing of an EV before you. Replacing battery on every issue without proper diagnosis contradicts the main purpose of EVs. Hopefully more people starts worrying about this problem
First time Isee Edd breaking instead of fixing 😂😂😂
Ps. We wanna see you working. Doesn't matter if it'a a boat, a bike, a car or a bicycle
I've watched many videos about contactors in HVAC systems. Very similar failure issues. Which, to a much smaller context, reminds me of the points in old cars.
Happy new year and welcome back Sir so happy for watching you 😎
Thanks for watching! Happy New Year to you too.
@eddchina thank u Sir 😎
Would enjoy watching videos on the boat. …the variety maintains the interest.
Brilliant, more varied content coming up but we will make a chunk of progress on the Ferrari and Range Rover first! Promise!
Sometimes switch contacts are rated for the *SWITCHING* current, and they may be able to *carry* more current than that when engaged.
It would be presumed that the highest current situations (hard acceleration) would not include moving the Contactor at that time.
The Contactor would be actually switching on and off when turning the car ON or OFF.
...Maybe...
Crazy how that little device can brick the entire car, thank you for these demonstrations Edd, I keep learning new stuff every time 🫡
Boat Restauration sounds thrilling lookin Forward to it ,thank u🎉
I've seen every episode of Wheeler Dealers and will watch all videos on this channel!
GO ahead Edd love all your work
Whatever job you decide to share with us, we shall watch!
Would love to see the boat updates.
I'm stunned how small that contactor is/was. I would have expected something much more beefy. Maybe that is why it failed. A bit of built in obsolescence? Also +1 to see the boat back in the water
Brilliant, thanks for the vote. Definitely think Nissan should have spent a £1 or two more on the contactors!
1 Vote for the boat resto. Big vote for the fast red car! Electrical stuff too detailed for me but I get others enjoy it. Love the John content, funny man. Thanks Edd.
Right chuffed with this much Edd C content, cheers
Happy New Year Edd... looking forward to the office build... and the boat... and the Range Rover... and the Ferrari... and anything else you want really. 👍
Yep, I'm keen to see the boat.
Definitely want to see the boat!!!!
Wow ... This is great!!!! A bit of everything
I’m a long-term Ed China fan, plus viewer of this channel since basically the start. But it was so disappointing when, after having got us all so invested in the channel with Workshop Diaries however long ago it was (at lest 3.5 years ago if not more), you just disappeared without word or explanation.
Can you tell us you won’t miss just up and leave again in a few months time?
I learn a lot watching your content. Awesome edd
Ed, The boat has to be your favorite colour; orange. I'm looking forward to the coming videos.
It’ll look like a lifeboat 😂
It will definitely have a dash of orange at least, that will look great on the water too!
@Desmond.TuTu. I'll try not to make it too lifeboat-like!!
Hi Edd, great to see you!!!
I want to see it! I want to see all of it!!
Definitely include all the projects, very interested to see what happens with everything especially that Ferrari…
Thanks. Absolutely need o know if that Ferrari is a runner before we get too distracted by everything else!
Always good watching Ed china 😊
In short, another component designed to operate on the edge of failure. All those pennies and grams of weight saved got some middle manager a big fat bonus.
Definitely be interested to see the boat project.
Fab, it's now officially on the list!
show all types of things your doing its all fun and interesting but it may also hurt your youtube algorithm not sticking to one thing, but i hope you do show everything your restoring/fixing in detail.
Yes the algorithm is a tricky thing, Colin Furze manages to be pretty eclectic when he's not digging so it must be possible...
I would say, as you picked up, that the contactors are in fact under rated for the task. Hence the way it failed.
I think it is definitely a possible issue but I think @Richardincancale, above, has a great explanation...
Great content 👌
Keen for the boat content 👌
Whilst they have a custom part number for the Nissan application, they're just standard Panasonic AEV14012 contactors different mounting ears. The specifications are 120 Amp continuous, 225 Amp for 3 minutes and 400 Amp for 30 seconds with 38mm2 busbars (conducting heat away). They are Hydrogen filled and fitted with magnetic blowouts to help quench an arc if opened under load.
Love it, knew someone would know more about them! Thanks for the info, how much are they when bought separately?
@@eddchina You need the Nissan specific version for a direct drop in and I don't think they're available from Nissan (I've got a couple of used ones to hand) . I've used Kiovac, or Albright contactors as replacements. Both have higher current ratings. The EV200 has a 200 amp continuous rating and is readily available from Farnell, Mouser etc. I usually call Dalroad Norso, they're very helpful.
How about 1 project at a time, Ed.
Strikes me that with enough power to the bow thruster you should be able to do nautical doughnuts!
We want to see everything you guys do, keep up the good work, its fantastic 😊😊😊
If this helps, I think they're still looking for Jimmy Hoffa. Just kidding. Thanks for the video upload Eddie. Happy belated new year!
Thanks, you too!
Yes to the boat build.
Your math is correct.... IF the motor is DC.
It's the same problem as with almost all other consumer electronics. The manufacturers save where they can, so things like these contactors aren't dimentioned with the redundancy needed for 20+ years of use.
BTW, the ceramics is just for electrical insulation. I sincerely doubt that it's fully encapsulated to provide a "no oxygen" environment.
I'll have to break another one an see if I can capture the gas/vacuum, or just ask Panasonic!
is definitely SF6
Yes, my vote to see the boat restoration. Also, would of been nice to know if you could buy the failed part.??
Great, thanks! I did have a quick look online but nothing obvious came up, it might be available with a different part number perhaps...
Sure, keep them videos coming! Soo 1 up for the boat!
Hello from Finland!
Hello Finland! Great to have you aboard. Boat jobs making their way up the jobs list soon...
definitely wanna see what ever projects get finished ✅ over time. I’d try and bar the engine over without the spark plugs, and water pump attached. Definitely oil change, drop the oil pan. I’d inspect the bearings just to be safe and rings. Inspect the bore for scoring. Valves need to be cleaned. Valve adjustment. But definitely need to fix the paint. Ferrari’s you don’t abuse one for what they cost. Water pump may be rebuilt most likely a bearing went.
We want to see the boat!!🤩
Aye aye!
Hello Edd and happy new year 2025 to the whole team from France bye....
Genial Edd, me gusta eso de desmontar y romper con la curiosidad de un niño que quiere saber como funcionan las cosas
Thank you. It's pretty much what I spent my childhood doing. Putting stuff back together came a little later!
Drill a hole at the bottom of the threaded part and separate - just a thought!
Nice idea, only thing is once the protective gas has escaped the contacts will oxidize more readily so its ultimate demise would be brought forward...
Slightly different but same. Bought my son a Kia with non working windows. Took switch apart and quick sand of contacts and hey presto all working at zero cost
we just want more edd
Do we want to see the Ferrari, the Range Rover, the Leaf, the boat, or the office build?
Yes. The answer is yes.
I want to see the video of you putting that contactor back together again!!!!🤣
That's a shame as I may have been 'examining' the camera while i did that so the footage may have been disassembled too!!
Yes, to the boat video, please.
Brilliant, I better order the paint!
Gelukkig en een gezond nieuwjaar 🥳🥳
Thank you. Happy and Healthy New Year to you too!
That Boat, yes! Not usually a big fan of Boats but that one looks mean 😁.
I bet you James May could have built you a Range Rover out of Meccano. Yes to the boat restoration. Perhaps at a later date a motorcycle as well. A nice older Triumph for example.
An old triumph would be great fun, although I'm a little too big for any motorbike!
Would love to see more of the boat
Great, in that case, it'll be coming up after a bit more office, Ferrari and Range Rover progress!!