Solar (PV) Disconnects & How To EASILY INSTALL ONE from DIHOOL Electric
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- Опубликовано: 10 сен 2024
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⚡ Welcome to The Juice Box! ⚡
In today's video I bring you along for the complete installation of a solar disconnect or PV disconnect with 100 amp breaker. What is a solar disconnect? When do you need a disconnect? How to install a solar disconnect? All these questions and more will be answered today; in The Juice Box!
🔷 VIDEO CHAPTERS 🔷
0:00 - Intro
🔷 INFO FROM THE MANUFACTURER 🔷
#solarpower #solarenergy #thejuicebox
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This video and description contains affiliate links, which means that if you click on one of the product links, we may receive a small commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases
The polarity is Improntant because we're dealing with high voltage DC currents. By design, the plasma arc, created when the breaker trips, will be drawn into the extinguishing plates by a permanent magnet. Wire it wrong and the arc is repelled, and may not ever extinguish. This could cause a fire. Very important to get it correct.
Use non-polarized breakers.
GREAT work! You know one the most important aspects to a quality 'at home' demonstrator: MUSIC. As soon as I hear stupid music I kill the video in .05837 seconds. If, when I'm hearing it, it is also way to loud to hear the presenter, I think I can make the video kill in .003 seconds (depending on how loud the music has been mixed in, or how annoying the music is).
Legend presentation. As always. Love your channel and simply just the WAY you present! No ambiguity, BS and you don't talk too fast! Goes straight to my brain.
You ought to have talked about MCB with Polarity.
I just purchased the same brand DIHOOL, though mine is a 60 AMP with Female/ Male MC 4's on input and output ( top/bottom). Our system is small system with 9x100 watt panels on the sheds roof feeding a Zendure Superbase V 4600. The Zendure SBV4600 is an expandable unit that takes whats called Zendure SBV 4600 Satellite battery units, and it can keep expanding up to 46,000 (46K) Wh if needed. The Unit itself weighs about 121 pounds, and its on wheels, and the 2 out of the 4 wheels are powered in which it can be controlled on your cellphone through their APP.
With intention to protect my solar system against overcurrent and allowing to isolate system when you want to work on it (unless you can switch off the sun). However, read / view some test people have done with several of the "cheap" to buy (polarized) solar breakers, when the circuit is openen with the breakeran arc frames up and burns down the breaker and then the flammable material around it like roof, RV and that is not cheap at all, interrupties a DC current for a voltage some 50V is no joke: arc / stick wilders use this to on one spot create a lot of heat to melt 2 precies of steel together...As the arc is expected to be pushen by permanent magnet insite the extinghuising Chamber the direction of the current requires it to install in the "proper" way, For people who have grounded the aluminium frames of the solar panels also increased the risk of fire in case of a lichting stroke inside rthis grounded structure of alumimum/aluminium. Afdingen faulty breakers is like installing a sprinkler system which pumps gasoline to the affected area making things MUCH worden, 10 years ago in Australia is was "code" to install such breakers and now they are forbidden...For a single panel woth a Voc below 50V such a breaker if properly installed probably want catcher fire and is you open it you want drop from your roof by a shock is you isolate your system for higher string voltages they might and the solar panel is a current source abd completelydifferent than USA split phase utility where neutral is grounded a house site....DO NOT BELIEVE PRINTING ON CHEAP BREAKER WHICH SUGGESTS IT CAN SAFELY INTERRUPT CONTACT UNDER LOAD.....Just check several clips about DC MCB SOLR CATCHING FIRE....
Should ferrules have been used on the stripped wires instead of just twisting them before inserting into the breaker?
No
Keep the french cleat, but put a piece of wood on the lower screws that keeps it pulled down. That'll keep the cleat engauged, but be easily removable.
In other words, put a regular piece (not beveled) at the bottom, using the bottom screw holes on the box, that touches the flat bottom part of the cleat board, applying pressure on the top cleat. Still easy to remove (just take that board out), but won't mess up your wall either.
I was thinking about a board above cut to fit so it cannot move up. Or a board cut at an angle and use it as a wedge to hold it down.
I was about to buy PV disconnect, but I decided on watching a RUclips first and found you (Subscribing!). Your video reassures my research and installation plans. Going to make my purchase now. Thank you!
It would be great if you did videos on extension cables and best practices for getting them inside. I have some of the research, but your studio design and presentation skills help prepare people like me.
OMG you are all over the place! I mean that in a good way meaning you have multiple RUclips channels covering many topics. Just subscribed to this one too. Great video!
The hardcore reason to connect the positive from the panels to the positive on the breaker is about how the breaker does its job. Internally it has an electromagnet that is used to pull the contact away to open the connection when the breaker senses over-current. If connected in reverse, the over-current will cause this magnet to PUSH the connectors together causing the breaker to cook itself.
Love watching this new channel Sam
I watched your video on the Dihool Solar (PV) Disconnects. I am interested in a Dihool smart mcb to control the current used in my shed. The Dihool product drew me to your channel. Anyway, your video was very clear, concise, and effective. I will watch for your future videos. Thanks.
HOWdy T-J-B, ...
Thanks for taking us along ...
by the way =
those weather / water TIGHT fittings are referred to as: "GLANDS" ...
suggestion: when installing / securing STRANDED-WIRE in a screw-down FITTING (like your circuit-breaker) you might want to explore the use of FERRULES ...
... ferrules bind all of your STRANDED Wires together in a bunch to allow for a better contact &
WARNING: If this polarized breakers are connected with the source (solar panels) comming from bellow, the plus pole must be connected on the side where on top the minus symbol is printed on the breaker. There are magnets inside to push the spark into the extinguishing chamber, otherwise the spark is pushed in opposit direction into the mechanism and the breaker catch on fire within seconds! The current flow must go from + to - and of course the + stay a + even he leaves the breaker throught the - terminal.
If coming with the source from above as shown in video, the + must be connected on the side where the + symbol is.
Polarity marks should match the source side
@@tjmooney4181 If there are only polarity marks on the top, but you come with source from below, then plus goes into the minus side.
Thx a lot for all your efforts. You're absolutely good at what you do. Having said that, let me put in my 2 cents. When you're using the EG4 18K-PV (Hybrid inverter) you do not need a combiner box. Also, many are moving away from it and using instead an isolator. Thx
As an Electrician with 40+ years' experience hearing someone say "if in doubt just go big" is an absolute dumb way to design a protective circuit.
Let's summarise what a circuit breakers task is = to break the circuit in case of overload to PROTECT the circuit and thereby possibly protecting property and people from the consequences of overloaded electrical cabling e.g. fire hazards.
How is it going to protect a circuit if it is not designed for that particular circuit...go big??? great .....circuit breaker wont trip but the cabling will overheat....good design.
I won't go into how many other mistakes were made on this video....as the one I have highlighted should be sufficient for people looking for direction on their installations to skip this one.
Didn't even know these existed. I might have installed one at the cabin. Right now I just have an in-wall SAE socket.
Hi I see u connect red cable on the right side of breaker I have Lange dxpool 47 32 A break should connect red on right side or left or does not matter either way
I’d advise using ferrules and double insulating the connectors. Postive and negative must be in the correctly poled connectors or Arcing will probably occur.
If you place a straight 1 x 2 on the bottom you should be able to semi-permanent mount the bottom portion of your breaker box under the French cleat. this keeps the box from raising off the cleat.
I hope I was clear on what I said here.
You should use a UL listed DC breaker from Westinghouse
Hello thank you for sharing what size is the DIN rail
Is that a non polar MCB? The symbols on my circuit breaker show the outputs are on opposite sides to the inputs!
Thank you sir. Subscription earned
That's cool I like it. 100 v. 50 amp is what i need
Becareful
Reason it's marked negative and positive. The reasoning is when the switch is on or off it engages the off position on the negative side first before the positive side when you turn it on it does the positive and then adds the negative within the switch so there's no spark. It's like a car battery you always remove the negative 1st.
What happens when under a 550v and you turn the breaker off? Is there an ark?
DC breaker, does it have a polarity ??? Could be important. ???🔥
Why not just use a light switch? Maybe a stupid question but if it is a small PV system it should be fine. Right?
I don't understand why both legs need to be switched. Wouldn't a simple Blue Seas On/Off switch do the same?
8 Gauge wire on a 100 amp breaker??
The rating of the breaker is irrelevant. It's big enough to never trip, so it acts like an on/off switch. The wire size is matched to the solar panels and the distance to minimize voltage loss..
Folks, please use a proper, UL listed DC breaker, not some no-name crap.
What’s the point? If you’re running your solar power into a power station and If you don’t want solar can’t you just unplug the cables?
Never got notivied of this or the next video. Subbed and Belled.
Not sure what's going on.
Is this just an on/off switch or is it also a breaker and do I still need to use inline fuses with it?
So you could do a dedicated battery disconnect box just like that? Battery disconnects are not an easy solution to find online. Most search finds stuff for marine or rv life rather than residential. I need to have a disconnect for 20KWH eg4-LL battery backup. Would something like this work?
Like ur videos
2:31 haha
A small block of wood below the cleat and screwed to box, But breakers really are not disconnects they are meant for protection of the wiring
Other than the polarity signs for avoiding shorting mistakes, is there any difference with an AC breaker? (I can use a sharpie to add +/-)
The differences are monumental. AC cycles give the breaker a safe way to break the current at 0v. DC doesn't have that cycle, the current is constant. So, DC breakers need a mechanism to stop the electrical arc that forms when it tries to break the connection. Some people call it an arc-extinguisher.
Read my comment...WARNING...
I don't need that thing. I run off 12 volts and everything is smooth. Connecting your solar to the utilities isn't very bright.
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