Renogy Inverter Charger Installation - Part 2 | Complete Guide inc RCD Protection
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- Part 2 is a detailed guide on installing the Renogy inverter charger in your campervan. No prior electrical experience? no worries, our video will guide you through every step in a clear and easy-to-follow manner.
We cover everything you need to know, including fuseboards, circuit protection and fuses, earthing and grounding, cable sizes and RCD (Residual Current Device) protection for optimal safety.
Also, we uncover how to get an RCD to function on the inverter's centre-tapped output. This ensures the inverter's output power is safe and meets current (UK) regulations.
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Do you have questions about installing your Renogy Inverter/Charger?
For 1:1 support, wiring diagrams, programming help, etc. Visit - www.vandercamp...
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Disclaimer
- Jolly is a skilled electrician and electrical engineer with 20 years of experience, including 6 years specializing in campervan conversion electricals.
- Renogy has not sponsored this video, nor have they provided us with any Renogy products. All products were sourced by ourselves.
- The information is based on UK regulations and the UK inverter charger (230v), with references to the US (120v) inverter charger where relevant. Electrical regulations may vary in other countries.
- We detail how WE installed the inverter charger. Your electrical system may be different. Always read the manual and seek expert electrical help if you need it.
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Chapters ⌛
00:16 - Introduction
03:14 - DC Battery Wiring & Installation
08:33 - Fuseboards
09:24 - Fuseboard 1 - Hook-up Supply
09:59 - Fuseboard 1 - RCD
13:09 - Fuseboard 1 - MCB
16:40 - AC Input Cable
17:34 - AC Output Cable
18:03 - Fuseboard 2 - RCD
18:33 - Fuesboard 2 - MCB
18:55 - Fuseboard Enclosures
19:47 - Earthing & Bonding
25:39 - Switch On And How It Works
29:50 - Centre-Tapped AC Output Explained
32:55 - Testing - AC Output On Hook-up
33:55 - Testing - AC Output On Inverter
34:42 - Centre-Tapped Inverter & Safety
37:14 - How It Works Continued
38:26 - RCD Testing - DB2 - Inverter In Bypass (Hook-up)
39:27 - RCD Testing - DB2 - Inverter On (Centre-Tapped)
40:22 - Centre-Tapped Inverter Explained
How To Get An RCD To Function On The Inverter AC Output
44:28 - Neutral - Earth Bonding Explained
47:23 - WARNING - Product Manual Misleading Information
49:23 - Inverter RCD & Neutral-Earth Bond SOLVED
51:05 - Neutral-Earth Bond Contactor Installation
52:02 - RCD Testing - Inverter With N-E Bond Contactor
55:55 - Final Thoughts
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Video References 🎥
Installation guides and resources - www.vandercampadventures.com/renogy-inverter-charger-installation/
2000w Renogy Inverter Charger - shrsl.com/3wn5c
3000w Renogy Inverter Charger - shrsl.com/45u9s
PART 1 - Renogy Inverter Charger Installation - • Renogy Inverter Charge...
Inverter Charger Manual V3.0 - store-nkm2yhe9...
Tools 🛠️
Multimeter tester - ebay.us/TJiMWQ
Electrical screwdriver set - ebay.us/PRFpvY
Crimping tool (5-50mm) - ebay.us/ZVZ004
Wire strippers - ebay.us/WGw8Nm
Socket tester UK - ebay.us/TAz5aF
Materials 🛒
Contactor - amzn.to/3Iwk9JS
Fuseboard 4-way - www.wiredcampe...
Fuseboard 6-way - www.wiredcampe...
20mm cable gland - ebay.us/bHNtNV
Hook up socket - ebay.us/lybmHx
RCD 30mA Type A - www.wiredcampe...
MCB Double pole B10 - www.wiredcampe...
MCB's - www.wiredcampe...
200A Mega fuse - ebay.us/ctvWKX
Mega fuse Holder - ebay.us/DBh6Pf
300A Isolator - ebay.us/AslC8l
10mm DC cable (Grounding) - ebay.us/J05UEI
35mm DC battery cable - ebay.us/bqZiLd
50mm DC battery cable - ebay.us/bIuGuM
1.5mm 3-core flex cable - ebay.us/hkpGWU
2.5mm 3-core flex cable - ebay.us/hkpGWU
6.0mm 3-core flex cable - ebay.us/TJiMWQ
4.0mm Earth cable - ebay.us/5kG0SV
MET (Main earth terminal) - ebay.us/BHeNvr
Earth clamps (8mm pipe) -
Safety label - ebay.us/RfmUt3
DC cable lugs - ebay.us/fIVWVo
Ferrule's - ebay.us/1ArJdF
Heat shrink - ebay.us/1VcLPB
These product links are affiliate links. If you make a purchase via a link, we may earn some commission. This helps Vandercamp Adventures continue to grow at no extra cost to you. It’s a win-win situation!!
Stay connected with us! 🔗
Facebook: / vandercampadventures
Instagram: / vandercamp_adventures
Website: www.vandercamp...
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Thank you for your continued support.
Tags
#campervanconversion #campervanelectrics #renogyinvertercharger
You need to clarify that it’s double pole SWITCHED sockets that you need. All UK sockets will have double pole plus earth, but what’s important is that the SWITCH is switching both poles. DP switch.
Hey, thanks for your input. I'm sorry if that wasn't clear in the video. At 35:20, I clearly explain and demonstrate what SP and DP sockets are and how they function, including switching.
Do you have questions about your Renogy Inverter Charger or require a WIRING DIAGRAM? Jolly, your 'Renogy Inverter Charger Guru', provides comprehensive guides and resources to assist you with installing, setting up, and using your Renogy charger. Visit: www.vandercampadventures.com/renogy-inverter-charger-installation/
Thank you to everyone for your continued support. Your likes, comments, and subscriptions help the channel and the community.
PLEASE NOTE: There is a typo at 13:04 stating the RCD must be '30mA minimum'. The correct statement should read 'the RCD must be no greater than 30mA'.
Here is the link to Part 1 - th-cam.com/video/gecrb2rPUvU/w-d-xo.html.
The RENOGY Inverter Charger can be purchased here - shrsl.com/3wn5c
Contactor - amzn.to/3Iwk9JS
Hey just started building my van and was planning on using this setup but now I’m not sure as honest that has boggled my brain, would using a separate mppt and separate bonded inverter eliminate this problem? Just looking for a simple solution as I’m not massively confident with electrics thanks
Absolutely brilliant video 👍 - thank you.
Thank you 👍. If you need any additional help or support, please feel free to reach out to me.
I’m not to keen of the socket tester going into fault mode at the end there I would be alot happier if the thing did not go into fault mode at all anyway love your video thank you
Me too buddy. However, i can't find a solution except isolating the power for this short time. I'm hoping from watching the video it will ensure people are aware of this 'unprotected' window and to take care.
Thanks for the comment and kind words.
Absolutely awesome video, gave me a lot of very useful info, thanks
Excellent Video! Just 2 questionstho….could you not earth the in better case to the MET rather than the negative busbar? And would you still need an MET if you have a normal van (such as a T5) as the whole body is the chassis?
Just a thought on cable sizing.... 2000w is the continuous load, 6000w is the max load, the cable size stated by the manufacturer takes that into account
WOW. Thanks for this. A lot to take in for sure, but you've done an excellent job of making it understandable! Guess I'll not be using the switchless CBE style sockets. Just ordered that magic box to do the selective bonding. Thank you for the effort to make this video, it's going to help out a lot of folks! Pete
Hey Pete,
Thank you so much for your feedback and kind words. I've taken some much needed rest after finishing this video haha.
Let me know how you get on installing the contactor and please don't hesitate to ask if you need any assistance.
Regards,
Jolly
The Renogy PCL series inverters. Are they centre tapped or floating output? - there is a significant difference.
If it is centre tapped and that centre tap is galvanically grounded via the changeover relay then it will be dangerous to additionally ground L2 (or L1) as half the mains output will become short circuited.
If it has a floating L1 & L2 output then it should be left that way as Renogy have no information about the insulation quality of the inverter output circuitry. Grounding L2 for example will double the output voltage seen on L1 and double at least the voltage stress on the internal transformers etc.
So either way if the design has not been created for grounding then you are walking into unknown territory with the Renogy inverters. If it goes pop and releases the magic smoke then any warranty claim will be voided.
If you want to run grounded output and have a functional RCD then get a Victron inverter or similar design spec - some Sterling units also support an RCD.
So does the new model's now have this feature or have they not added it yet?
As far as I'm aware the N-E bond feature has not been added to the newer units.
Some of my customers have noted that Renogy support informed them the N-E bond function is installed. However, after testing they confirmed it hasn't.
Please be aware and test the AC output to confirm.
Regards,
Jolly
@vandercampadventures thank you. I think I'll save and get a victron. I also just noted all my factory fitted sockets are double pole so that's a win.
I've searched everywhere to have the (240V) circut breaker/rcd setup made clear on my 3000w renogy inverter charger. Thankyou for a very comprehensive clear and thorough explaination. Like others its been sitting around being one of those things I wanted to upgrade on my rv but wanted more backgrounding on. You've given me this. Cheers Tim
Hey Tim, thank you for the comment and kind words. It's reassuring to know the video is helpful.
Regards,
Jolly
This is exactly what I need!! Thanks for the video! Would you mind giving me a link for the contactor please?
Hey @Jessabelle99,
Thank you, and you are welcome. See the 'Materials' section in the description for the contactor link. Let me know if you need any assistance 👍.
Regards,
Jolly 🤘
Good video, only additional test id carry out would be to simulate a failure of the contactor to make sure the incomer RCD trips, which it should as it'd introduce a N-E fault. Also, the RCD only needs to be tested every 6 months.
Thanks Paul
BRILLIANT video ,thankyou also subscribed . you should have more subscribers than Greg Virgoe 👌👌
Hey there, thanks so much for the support and kind words 👍. Greg is a legend in the field 🤘
Great video and information, thanks for the hard work. I’m just installing mine bought in February this year and contacted Renogy about the omission of the neutral earth bond switch and they have replied saying it is installed! I’m finishing the install tomorrow so I’ll test as per your instructions pre retro fitting the relay and send them the evidence. I’ve asked them to pay for the additional relay and associated wiring costs but they have failed to even acknowledge this request. I’ll post later my tests and further correspondence from Renogy.
Hey there, i can confirm that all PCL Renogy Inverter chargers, even the new REGO inverter charger coming soon to the UK, does not have a N-E bond relay switch. Maybe they misunderstood. However, i'm happy for you to prove me wrong with your results.
Feedback from my customers has been that Renogy are offering an external relay setup at an additional cost. However, the setup and instructions are poor.
If it turns out there is no N-E bond relay, i have wiring diagrams for an external RCD contactor installation here - vandercampadventures.com/downloads/renogy-inverter-charger-rcd-contactor-wiring-diagram-uk/
Keep us posted and let me know if you require additional support.
Regards,
Jolly
Thanks for the incredible detail! Have bought and followed the wiring diagram, really clear thank you 👍 inverter working fine, on switching to shore power it stabilises for 8secs ~ then trips the DB1 rcd and shore power side rcd. Anyone else have this issue it’s a 2024 2000w version. Renogy helpline did clarify there has not been a N-E contactor fitted internally.
Hey Josh, thank you for the kind words and support.
It sounds like a wiring issue, send me a wiring diagram of your setup and I'll have a look for you 👍.
Regards,
Jolly
Fantastic instructional videos - many thanks. I've just binge watched them. I've had the 3k version for almost 2 years now in my caravan. My initial wiring hasn't been perfect mostly because I'm swapping out a 30A hook-up cable inside of the 'van, depending upon whether I wanted to use the inverter or shore power. If I understand correctly the RCDs in the van won't operate as I don't have the N-E bond? Clearly not a great situation. I also had an issue with the pass-through. The smaller Renogy inverters pass-through whilst switched off. I'm guessing that this one needs to be switched on to pass-through as it also operates as a UPS. HOWEVER, the cooling fan came on for a minute or so every hour, even when there was no AC load - not great at night. I'd be interested to hear if anyone else has experienced this. Oh, whilst I'm on I don't suppose you've ever run a Tassimo coffee machine using this inverter - it doesn't half make a funny noise... Although, it must have made a few hundred coffees with no issues, so far. All the best and thanks again. :-)
Hey there, many thanks for your support. I think you're my first 'binge watcher'. Thank you for taking the time to leave a comment and ask questions.
Correct, the RCD on the AC output won't function (as an RCD) because the inverter is centre-tapped (no N-E bond). You can carry out a simple test to ensure your inverter has/hasn't got an internal N-E bond relay. See video section - 33:55.
The inverter charger must be on for the automatic transfer relay (pass-through) to function.
Unfortunately, the cooling fan operates approximately every hour (I've not timed it exactly). I've not tested the fan's operation when there are no loads. I agree that this is a nuisance.
What makes a funny noise, the Tassimo coffee machine? Does it make a noise when on hook-up power (pass-through)?
Regards,
Jolly
excellent video, has answered alot of questions. im fitting a renogy 2000w inverter (only,no charger). Will investigate if its centre tapped. many thanks for putting this out 👍
Hey Garry, thanks for the comment and kind words. The Renogy inverter (none charger) is also centre-tapped. The AC output is similar to what's explained in the video.
I have a detailed wiring diagram to show how to wire an RCD to the inverter. It will be available on the website this week. I'll keep you updated.
Here is the link to the webpage - www.vandercampadventures.com/renogy-inverter-charger-installation/
Give me a shout if you need any assistance.
Regards,
Jolly
Good video, Interestingly I get 60V measurement when running on battery not 100+V as I would have expected, using the standard 2000W Australian model with 240V output, I have been looking into installing an RCD before I install the unit and was surprised when plugging GPO tester in and hitting RCD test the inverter does nothing, now I know why after watching this, I would have preferred if Renogy just installed an RCD in the unit like REDARC and some others do and just charge another $40 for it, it would save a lot of headache.
Hey Pork-Chop,
You may be reading 60 volts because there is a load on the AC output. Slight variations in tolerance and capacitance can cause the voltages to change. Try testing it with all loads switched off.
Some new Renogy products in the US now have built-in N-E bonds, which is promising. However, even though an inverter states it has an RCD, protective device, N-E bond, etc., I would still install an external setup. This way, you know the safety devices and can ensure they work and will protect you. A small price to pay to be safe, I think!
Regards,
Jolly
Excellent video and have subscribed! very informative although I am now in panic mode! Has this issue been addressed yet? V3 p14 of the manual states it has the auto switching. Just got mine 2 weeks ago and if it is still not fitted then I am not sure what I will do for my son and his young families house boat installation. Trying to save every penny we can and had heard good things about Renogy (other than slow customer service) which is why we have invested in a DCDC charger, MPPT and the inverter together with 2 x 200Ah lifeP04. Not exactly cheap but cheaper than Victron and hopefully up to the task. Worst case I guess I could look at the relay option although then we start getting in to galvanic isolators etc and my head explodes! Keep up the great work and again, awesome video.
Hey, thank you so much for the comment and kind words 👍.
The N-E automatic switching isn't installed on the Renogy inverter chargers. I have spoken to Renogy but they can't confirm if the automatic switch will be incorporated in the future. This information was removed from the manual so isn't in the newer versions.
Out of interest, what manual version did you get with the inverter charger? V3.0 online doesn't include the automatic N-E bond switching.
We've been using Renogy for 6ish years now, 2 years with our current camper and they perform really well and we've never had any issues. Customer service cancelled be slow but they've always replied to me.
Good luck with the install. Please shout me if you need any further assistance 👍.
Regards,
Jolly
Thank you for a comprensive explanation why neutral to earth is needed for correct RCD operation with an inverter.
A more expensive inverter charger from Victron, a Victron Multiplus, has the bonding relay/contactor built in, thus a much easier install.
All the Renogy inverters and Inverter chargers on sale in the UK, for permanent instalation, 😢😊 are center tap design and where installed in a application with distributed multiple outputs sockets and metal cased appliances, are inherently unsafe unless a RCD is fitted with an additional bonding relay/contactor as shown in the video.
😢
Hey Michael, thanks for the comment 👍
I have just bought the 230v 2kw inverter charger direct from Renogy and the manual supplied was still version 1.1 which still shows the built in neutral to ground bonding relay which assuming they havent now introduced this is extremely dangerous to me as I had started planning my build and ordering parts based on the assumption that the manufacturer's manual is correct!🤬
Hey Darren, i feel your pain. It's very dangerous and misleading which is why I've tried to reach people who have the product to educate them on the dangers and more importantly, a solution.
There are only a few inverters that incorporate a N-E bond. Even so, i would still recommend installing an external N-E bond to ensure it functions correctly.
I have a wiring diagram for installing an automated N-E bond switch, here's the link - vandercampadventures.com/renogy-inverter-charger-installation/.
If you need any help or support, please give me a shout.
Regards,
Jolly
Hi Jolly, a few question for this, you showed the switch for the hook-up, you had to manually switch this on to energize the contactor to debond the Earth-Neutral, are you saying you have to manually turn breaker for the hookup on each time you plug the van into hook-up power and then turn this off when you leave hookup power ?, or do you leave everything on and it all works automatically as you plug or unplug the hookup ?, and for an inverter that only has output sockets could you just use a 2 pole contactor that simply bonds and debonds the Neutral to earth behind the GPO without the need of a 4 pole that switches the neutral and active, this would have to be controlled via an external switch manually so you disable it when plugging into a powered site, finally is this all irrelevant if using double insulated appliances, as these have no link back to earth, so if something went horribly wrong you are not actually protected by the RCD I assume ?, thanks
Hey Pork-Chop,
I manually switched the breaker on and off to demonstrate how the contractor works. You don't need to operate the RCD and breakers manually every time you're on hookup; leave them on. The inverter charger has a slight delay when switching over to AC bypass and charge, so it's safe to use the hook-up plug as the on/off "switch."
Yes, double-pole appliances can be used without an RCD and N-E bond. They are double-insulated, so there is no earth connection. However, they must plug directly into the inverter, not via an extension lead.
If you're referring to the Renogy inverter and not the inverter charger, the installation of the N-E bond will depend on whether you're using the AC input on the inverter. I have a wiring diagram for the Renogy inverter that details the N-E bond, RCD, and contactor installation. Here's the link - vandercampadventures.com/renogy-inverter-charger-wiring-diagram-rcd-contactor/
Centre-tapped inverters are safe to use as long as the electrical installation is done correctly.
Regards,
Jolly
Any concerns grounding the inverter to the chassis of the vehicle? If 12v systems is also using the same chassis ground, could there be potential issues there? Thanks for the video!
Hey Lucas, that's a good question! Thanks for the kind words. Earthing and bonding in a campervan can be tricky because the right answer depends on your specific setup.
The simple answer is yes. There could be issues if the electrical system is not installed correctly.
A campervan's AC and DC bonding and earthing create a continuous bonded system, which can potentially energize the entire system in the event of a fault. Therefore, an RCD MUST be installed. The RCD will isolate the system in the event of a fault to earth.
When inverters and 230v AC electrics are installed in a campervan, an RCD MUST be installed on the AC input (hook-up) and AC output of the inverter.
I hope this helps! Please let me know if you need any help with earthing and bonding your electrical system. I can offer 1:1 support and wiring diagrams to suit your system.
Kind regards,
Jolly
Great follow-up video (the one I've been waiting for). As a layman I will be copying your method as I have just about got my head around it, thanks to the way you explain it in a way a layperson like myself can understand. Kind of wishing I bought the victron multiplus ll now, but I have the renogy 3000w inverter charger so I will run with it set up the way you laid it out. Again, great info, well laid out and well presented. I for one am extremely grateful you take the time and the trouble to help layfolk like myself with videos like this 👍
Hey LincolnDave,
Thank you so much for your kind words and honest feedback, it really helps me out. Sorry for the lengthy delay in publishing it.
If the video helps a handful of folks ill be happy. Good luck with the install and please shout me if you need assistance.
Regards,
Jolly
Why does it state that 70 mm cable is required to then go on and explain 35 mm is sufficient.
6:10
Hey Jolly, thanks very much for the informative video, I had a mare going through all the sockets, checking through all the wiring, trying to figure out where the neutral and live had been switched 😂 Out of interest, could the sockets just be run off one MCB on a radial circuit rather than having an individual MCB for each one?
Hey, thanks so much for your comment and kind words.
Yes, you can install more than one socket on a radial circuit. The important things to consider are:
- The radial circuit cable must be able to carry the current of the total load of the sockets.
- The MCB must be suitably sized to protect the cable.
Regards,
Jolly
Amazing video, thank you Jolly. I've had this inverter sat in the parts pile for nearly a year waiting to get the time to fit it and you've just saved me a whole load of heartache figuring that all out. Thank you again.
Hey James,
Thanks for the kind words. It's nice to hear i've saved heartache. However, you'e got no excuses about getting it installed now you know what your doing ;). Good luck and give me a shout if you need any help.
Regards,
Jolly
Same here! Glad I found this video.. I'm guessing this is basically the only safe way to install this inverter?
Installing it in this way will ensure it meets current wiring regulations and is safe for you and your loved ones to use 👍
My inverter has no voltage between earth and neutral but also no voltage between live and earth either
What can i do to make this system safe?
Hey, I'm more than happy to help but would need a lot more information from you to determine what the issue is here.
Please go to my support website here - www.vandercampadventures.com/renogy-inverter-charger-installation/
Nice one Jolly! Exactly the information I’ve been looking for! I do have one question tho with the contactor. Im looking at the Heschen 63a 4 pole but I have the option of normally open or normally closed. What one should I be getting? Thanks mate
Hey Tony, thank you for the comment and your kind words.
The link to the contactor used in the video is here - amzn.to/3Iwk9JS. It can also be found in the video description. The contactor is 4-pole with 2x NO and 2x NC contacts.
If required, I can provide a detailed wiring diagram for the RCD contactor setup and support.
Please see here for more information - vandercampadventures.com/renogy-inverter-charger-installation/#our-services
If you need anything else, give me a shout
Regards,
Jolly
@@vandercampadventures thanks Jolly! Just ordered it. 👍🏻 I’m not sure if you would know but I’m struggling to find a video on this.. I decided to get an Automatic Transfer Switch instead of a rotary selector switch. Do you know if this would be installed in between the RCD and the contactor, or after the contactor? I know the inverter has a bypass mode but we didn’t want to be limited by the inverter when on hook up. So decided to get a ATS to auto switch over when hook up is on. Thanks again mate! You’re a legend!
Hi, did you put a diagram on your website, apologies if you have but i cant find it and im stuck with the same issue
Hey Eddie, we're in the process of setting up the payment system on the webpage that will allow you to download the drawing. My apologies for the delay.
However, if you fill out the contact form, select RCD and request the RCD contactor drawing I can send the invoice and drawing to you via e-mail.
Here's the contact form link - www.vandercampadventures.com/renogy-inverter-charger-installation/#contact-jolly
Regards,
Jolly
Thanks Jolly, it took me a few viewings to get my head around it, fitted it today and I have tested the 12v inverter side only so far but no issues, thanks for posting your videos, they really do help,
Hey Darren, thank you for the comment and kind words. It's reassuring to know the information is helpful. Good luck with the rest of the install and don't hesitate to shout me if you need assistance 👍.
Regards,
Jolly
Excellent info you have given here. My question is would the RCD's still work with a generator plugged in to the hook up, and would a RVD be required is such situation and how?
Hey Graham,
Sorry for my late reply. I'm currently looking into this for you to ensure i can provide the most accurate advice. What generator are you planning to use?
Also, are you comfortable with setting up the generator program settings on the inverter charger? I can help with this if you require support.
Speak soon,
Regards,
Jolly
@@vandercampadventures I'm planning on using my generic portable 2.0kva inverter generator if required, it doesn't have a N-E bond. I'll be just plugging it into the vans external power inlet via extension cord.
The inverter is still on the bench at present but plan on having it fitted in my van in the next month. Just want to be sure the AC side safety works as intended.
Hey @@grahamfabian3458, I would like to discuss this directly with you. Is that okay? If so, please send me an email at jolly@vandercampadventures.com.
Hey up.. this is absolutely brilliant. Well presented and great understanding..content like this is very valuable even for us who will engage a sparky but it's nice to know why and how it works.
I'm currently deciding spend extra on victron or enerdrive inverter (in OZ) which have built on RCD and neutrla earth bond, or go RENOGY inverter charger 3000w at a quarter of the price. ..My question. In Oz some say use and RCD AND RVD combined. But is your additional switch the same as just putting in a manual change over switch for shore power to inverter power do the same thing? To add more into the mix would I need a 3 position change over switch if I wanted to run between shore power/inverter power/petrol generator?? This is my dilemma picking the correct inverter and correct switching method for 240v.
This would make another great video.
Hey Gavin, thank you so much for the comment and positive support, it means a lot to know were helping.
We swear by and highly recommend the Renogy inverter charger because of it's high quality at an affordable price compared to the competitors. Also, the lack of a N-E bond and RCD can put people off but i have designed a way to install an RCD with an addition of a N-E bond - I have a detailed wiring diagram for this.
RCD & RVD - An RCD must be installed and an RVD is not required by regulations. However, an RVD can be installed with an RCD for additional protection.
Additional Switch - The contactor and N-E bond setup in the video is not the same as a bypass switch. The contactor is designed to introduce a N-E bond when the AC output power is supplied from the inverter (not on hook-up). This N-E bond is required to ensure an RCD will function on the AC output and protect you.
Changeover Switch - A changeover switch can be installed to bypass the inverter. However, in my opinion, a changeover switch is not necessary because the inverter has a built in bypass switch that will automatically bypass the inverter when it senses an AC input.
There is a lot more to cover in this topic so would agree that this would make a great TH-cam video.
Ide be more than happy to go into more detail and work with you to find the best solution for you. I can also design detailed wiring diagrams to suit your setup. However, i do charge for consultations, support and wiring diagrams. Please drop me an e-mail if your interested, at jolly@vandercampadventures.com.
Regards,
Jolly
Thanks jolly. Watching the video are we concluding if ALL your 230-240v sockets are double pole, that's Means there is no need for a contactor switch ?
Secondly, if there is no need for a change over switch from battery power to inverter power, how would this work if you plug in a generator into the external 15amp into the caravan? No need for may change over switch in that regard?
I will run the 3000w RENOGY inverter as it's $400AU and already have a lithium charger,.so the weight of the inverter charger and the fact it's no earth bond anyway seems better option to run separate 240v charger imo.
3. Do you run battery to chassis ground or buss bar or shunt to chassis ground?
Hey mate at 13:07 you recommend using either a 30A or 63A RCD, I could only find a 40A one where I live. Would it be alright to use a 40A one?
Hey Pablo, 40A will be fine 👍. I should have said anything higher than 30A.
Regards,
Jolly
@@vandercampadventures legend mate thanks for the video it's helped me a lot!
Hi mate, I’ve purchased the exact same model in here in Australia and just wanted to ask if you guys use RVD’s (Residual voltage device) on caravans? Can they solve this problem if they are double pole? It’s been suggested in another Renogy owner video here in oz but not for the issue you’ve outlined. Many thanks for all the info you’ve provided
Hey buddy, thanks for getting in touch.
We don't really use RVD's in the UK, they're currently not a requirement in the regulations. However, some installations do benefit from them.
The regulations state that an RCD must be used. Therefore, an RVD is to be used alongside an RCD as 'additional protection' and not to be used without an RCD.
In some instances an RVD will pick up a fault before the RCD.
I hope this helps 👍. Let me know if you have any more questions.
Regards,
Jolly
@@vandercampadventures you’ve helped and made things more clear than the answer Renogy has given. Thank you so much mate
Hi , Excellent video. I have virtually the same setup, though not installed yet. My question is, can the two DB's be combined into one? Thanks Mark
Hey Mark, thank you for the comment. Which two DB's do you mean?
Regards,
Jolly
Hi, sorry for confusion, I meant fuseboard1 and fuseboard2 into one enclosure. Thanks@@vandercampadventures
No worries. Yes you can incorporate them into one fuseboards. However, you must have a label stating 'dual supply' because the fuseboards will have 2 power supplies 👍.
Regards,
Jolly
I am in Canada.Thank you for this information.
Hey Trevor, thank you for the comment.
I hope the information was useful even though it's based on a UK specification. I'm currently building my knowledge of the US and Canadian electrical regulations and working on wiring diagrams.
See my consultancy page for more information (link in the description).
Regards,
Jolly
Can I ask a question. towards the end when you tripped the hookup and the inverter kicked in, does that mean if you have a real fault while on hookup the inverter will still kick in and then trip as the faulty appliance is still plugged in?
I tripped the breaker to demonstrate what would happen if the hook-up power was turned off. If the AC input power (hook-up) is lost, the inverter will kick in immediately. A faulty appliance will trip the protective device on both hook-up and inverter power.
This installation ensures it meets current wiring regulations and is safe.
Regards,
Jolly
Cheers mate.
Awesome video very informative
Thanks Aaron 👍
At 43:29 wouldn't the appliance/load be earthed back through the inverter then the inverter would trip using it's own internal protection? Given that the system is 'floating' and the risk of shock is the same as in the home (i.e. you would still receive a shock if you touched live and neutral) couldn't you dispense with the RCD on that side? Also, I'm wondering if the earth on the inverter casing is connected to the centre tapped earth in the inverter. By bonding the earth to neutral it seems like you reintroduce the risk of shock for the purpose of adding an RCD?
Hey Matthew, thank you for raising your concerns and questions.
"At 43:29 wouldn't the appliance/load be earthed back through the inverter then the inverter would trip using it's own internal protection?"
Yes. When the inverter charger is connected to an AC input (hook-up), the transfer relay will be in bypass. Therefore, the AC input is connected to the AC output.
"The inverter is equipped with a 20A self-resetting magnetic fuse for internal protection."
I haven't been able to test or obtain test results from Renogy for this protection, so I can't guarantee the level of protection it will provide. Therefore, I recommend using an external fused setup for added protection that you know and trust.
"Given that the system is 'floating' and the risk of shock is the same as in the home (i.e. you would still receive a shock if you touched live and neutral) couldn't you dispense with the RCD on that side?"
The residual-current device (RCD) on the AC output side is there to provide earth leakage protection for the inverter AC output power when not connected to the hookup. The RCD's purpose is to protect you (the human) against fatal electric shocks.
"Also, I'm wondering if the earth on the inverter casing is connected to the centre-tapped earth in the inverter."
I don't know where the inverter casing is directly connected, nor has Renogy provided me with this information. However, I have tested the earthed casing to confirm the earthed connection.
"By bonding the earth to neutral it seems like you reintroduce the risk of shock for the purpose of adding an RCD?"
When you introduce a Neutral-Earth bond, you are introducing a potential to the earthed system, which is why the N-E bond must be accompanied by an RCD. The RCD will sense the leaked current and isolate the power.
A floating AC system is safe to use when it's installed correctly. For a campervan, the safest option is to have RCD protection. More importantly, an RCD is required by the BS7671 wiring regulations.
In conclusion, a correctly earthed campervan system with an RCD equals safety for you.
The subject of RCDs and earthing in campervans is extensive on its own. I hope I have provided you with sufficient information.
Regards,
Jolly
@@vandercampadventures Hi Jolly - thanks so much for your reply and taking the time to make this detailed video! It's definitely the most comprehensive out there and the safest design out of everything I've found so far.
Thank you for your kind words Matthews, it's reassuring to know I'm helping and making systems safe.
You know where I am if you need any help or support 👍
I wish the RCD Contactor Wiring Diagram was accessible on your website and not hidden behind a £15 paywall.
Hey John, thanks for raising your concern.
I presume your watching the video to gain knowledge and help with installing the product and how to get an RCD to function?
As an expert on the I've provided a clear and concise wiring diagram to ensure your system is safe and meets current UK wiring regulations and standards. Something the product manual doesn't provide.
The wiring diagram and product design have taken a few years of design and testing. This is to ensure the setup meets current regulations and will ensure anyone with a little knowledge can install it and be safe. Also, 20 years of electrical experience, time to make the TH-cam video and designing the wiring diagram.
The price also includes 1:1 e-mail support from myself if you need any help or guidance.
Based on this, we feel the £15 price is very reasonable. However, if you still have concerns please e-mail me.
Best review and guidance of the install i have found. Thankyou... It made it very easy to research correct RCDs and circuit breakers. One thing ive seen on the circuit breakers is the rated short circuit breaking capacity, Some are 6 KA some 4 some 10. What would you recommend?
Hey Adam, thank you so much for the comment and kind words. It's reassuring to know it's helped you out.
Ideally a short circuit current test should be performed at the mains hook-up to determine the size you need. However, this is impractical.
Therefore, I would recommend 6KA. 6KA is typically used for domestic installations and 10KA is typically used for industrial installations.
The KA value is how much short circuit current the CB can withstand.
Hope that helps 👍.
I now offer 1-1 assistance with installing and setting up the Inverter Charger so give me a shout if you need anything 👍.
Regards,
Jolly
Thanks so much for taking the time to make this video, it’s something I have been looking for for a long while.
I do have a question though - when there are essentially two ‘lives’, I am struggling to understand how the NE bond is different to a live to Earth fault. I.e. the LE fault leaves the earth carrying 115v, but the NE bond leaves the earth at 0v?
Hey Courtney,
Thank you for the comment and kind words. Your question is explained in detail in the video, have you watched it entirely?
Fantastic informative and thoughtful videos which should be receiving revenue from Renogy for doing their job for them. I'm going to be fitting the 3000W inverter soon and this has helped greatly, thanks. I'm planning on running a camping induction hob from it, so I need to be attentive to every detail as I'll be drawing a fair old wattage from it. Can I just ask, when you are using 240v sockets in the van, does everything go through your inverter circuit regardless of whether you are on shore power or not? Meaning, does your inverter always have to be switched on to enable the bypass to operate? Or do you have independent shore power sockets that would allow you to disable the inverter? Cheers
Thank you so much for the comment and your kind words, it's nice to know the info has helped you out.
All our 230v sockets are powered via the inverter so we need the inverter on to use them. We only switch it on when we need 230v power as we don't need it all day 👍.
Let me know if you need any more help or assistance 👍.
Regards,
Jolly
Really well explained video, gave me the confidence to wire up my 2000w renogy inverter/charger, just plug in the socket tester and getting 1 red light - open ground, switched off and checked earth continuity right through from socket to chassis.... Any ideas as to why I would get open ground from the tester?
Hey Andy,
Thanks for the comment, i'm chuffed the video has helped you out.
Please drop me an e-mail Andy at jolly@vandercampadventures.com and i'll help your rectify the open ground issue.
Regards,
Jolly
Does the bible actually say rcd test is half times and 1 x both 0 andc180 degrees.
The previous edition required the RCD to be tested at 1/2, 1 and 5x and at both 0 and 180 degrees. The latest update requires the RCD to be tested at 1x and must trip in less than 300ms.
Regards,
Jolly
@vandercampadventures gn3 states 1/2 times test as well as 1x . Last year I failed my AM2 as I did not test 1/2 as per GN3. 🙃
Your video is excellent, by the way. Well explained.
Thank you Gino. Heres a bit of bedtime reading if your interested - electrical.theiet.org/wiring-matters/years/2022/91-july-2022/changes-to-rcd-testing-in-bs-76712018plusa22022/
@vandercampadventures I love reading lol electrics is my porn lol.
A great video, I am currently in the same situation. Do you have a wiring diagram for the Contactor? I am assuming that a relay would serve the same function?
Hey, thanks for the comment.
I'm in the process of drawing up a schematic diagram for the RCD contactor.
The drawing will be available here - vandercampadventures.com/renogy-inverter-charger-installation/
A relay can be used instead of the contactor. However, relays are generally used for low current purposes (switching and signals). Whereas, contactors are designed to handle higher current circuits.
Regards,
Jolly
Please note that your inverter/charger does not have enough room on each end to cool plus mounted in a small enclosed space. With that said your inverter/charger will overhead and shut off.
Hey Harry
Thank you for sharing your concern. As someone who has worked with electrical components for 20 years, I completely understand the devastation that heat can cause. However, it is important to note that the manual guidelines for the location and ventilation of the inverter charger are just recommendations.
While designing our layout, I was worried about ensuring adequate ventilation for the inverter charger. However, to follow the recommended ventilation guidelines, we would have required a space of 1000mm x 700mm, which we do not have. Therefore, I contacted Renogy support to express my concerns and discuss our proposed airflow and vents plan. Renogy confirmed that their stated ventilation guidelines are recommendations only. The most important thing is to ensure the vents aren't blocked and the air can move and circulate through the inverter charger, which should not be in a sealed box.
Our unit is not in a sealed box; it's in a space allowing sufficient airflow. We have installed 2x 75mm drop-out vents in the floor, one on either side of the inverter charger. Additionally, we have created 3x 50mm vent holes in the seat base to ensure the air can circulate underneath the bench seat and electric compartment.
Given my concerns, I have closely monitored the unit's temperature when the charger is charging at full power (65A), and the inverter is powering a high load. I can assure you that the unit does get warm, but not enough to cause any concern, even during a 2-week heatwave of 40 deg C.
Regards,
Jolly
Did you find out how to turn off the annoying noise surely the manufactures realise that’s a really annoying noise and everybody must hat it when I turn the unit on and squeals for a whole minute, that’s really annoys me. I’ll end up taking it apart and taking the buzzer out. is there a fuse in the unit on the heavy current side You give good information really well explained.
Hey Mart,
Thanks for the comment and kind words!
The button noise is the only sound that can be turned off via the settings.
The 'unit on' buzzer cannot be turned off, unfortunately.
The buzzer also acts as the warning alarm so I wouldn't recommend taking it out.
Regards,
Jolly
Thank you for explaining what wires u used n where they connected. We got our kit from renogy but they dOnt tell us how to connwct the fuse in the instructions
Thank you for the comment and kind words. The Renogy manual only covers the unit itself, not installation side.
I can provide installation help, RCD wiring and wiring diagrams if you need, get in touch with me here - vandercampadventures.com/renogy-inverter-charger-installation/
Regards,
Jolly
Best information to resolve the issue of floating neutral inverters that I’ve seen, and I’ve watched many. I’m currently looking for a 120V, 4-pole connector relay that will do the same as Jolly’s 230V connector. I’ll follow Jolly’s video to get the wiring right, hopefully the first time. Thank you Jolly!
Hey there, thank you for taking the time to leave a comment. Your kind words mean a lot to me and make all the effort I put into creating the video worth it.
I apologize for not being able to source a contactor for 120v. You should be able to find a similar model that meets your needs. Ensure the contactor has at least two normally open (NO) contacts and one normally closed (NC) contact. Typically, they come with four poles, so you should look for two NO and two NC contacts. Also, ensure that the amp rating is sufficient to carry the current for the inverter.
If you have any further questions or need additional help, please don't hesitate to contact me.
Best regards,
Jolly
Thanks. That helps a lot. Do you still plan to post your wiring diagram on your blog? If not, I think I can figure it out from your video. Thanks again! @@vandercampadventures
Yes, I'm currently working on it 👍. It will be available in a few weeks time.
I'll also create a PDF download so you can access it offline.
Regards,
Jolly
Great solution but I’ve no idea how to wire that 😂. I currently have hook up to consumer unit, consumer unit to inverter, inverter to double pole socket.
Hey Met,
We're currently looking at designing a manual, document or kit for the N-E bond contactor.
Does the AC output of your inverter wire directly into a DP socket?
@@JollyGoode it will do it’s still in progression so not in use as we speak. Although it’s wired in to hookup via consumer unit.
Hi
Sorry to be a pain but in the recap at 13:04 it states 30mA MINIMUM for the RCD .Yet in the literature you highlighted at 10:13 it states 30mA MAXIMUM for the RCD.
Have I misunderstood somewhere ?
Cheers.
Fattrucker
Hey Fattrucker,
Thank you so much for bringing this to my attention. Your right, the recap statement of 30mA minimum is incorrect. The RCD must not exceed 30mA.
Thanks again Fattrucker 👍, I'll keep you in mind to proof watch the next video before we publish it 😉.
Regards,
Jolly
@JollyGoode Err thanks for that , I think . LOL
Fattrucker
@@JollyGoode I’m glad you got @Fattrucker’s name right. I can’t even say it 🤣