Dellmassive`s Camper Van Adventure

Ok double you turn...

Had a look at the alternative options.

Had a look at the combi units, ie inverter chargers.

Decided we don't need and 240v EHU in 96% of the time.

So decided to go with the inverter only option.

But 3kw ISH to convert the requirements.

And one that could be N-PE bonded, so we can make full use is the RCD protection in the consumer unit.

Decided that the 4% of time we need the EHU 240v in ..... It will be a stand alone battery charger clipped to the LB.

So after liking over the options...


I went for..


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View attachment 280289

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Yep, back to#team blue.


3000va, 2400watt continuos.

130% overload for 30mins

6kw peak starts.

N-PE bonded option.

But needs 90mm2 cable for 0-5m

Or twin 70mm2 - jeez



Recommended battery bank is 400ah.

So we have also ordered a second sb230 gen 4 to go under the passenger seat .. that gives me us a 460ah battery bank. From the guys over at @RoamerBatteries

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Could you get the 460 s4 Roamer where my 230 upright is on the floor in the back wardrobe cupboard under a false floor? You'd soon sell a spare 230 SB... There's certainly space with your new inverter on its end..? That'd keep the Mrs happy with her hairdryer and kettle!
 
Could you get the 460 s4 Roamer where my 230 upright is on the floor in the back wardrobe cupboard under a false floor? You'd soon sell a spare 230 SB... There's certainly space with your new inverter on its end..? That'd keep the Mrs happy with her hairdryer and kettle!
I've asked Roamer for a 460, and working with @RoamerBatteries to get one arranged.

We decided on a second sb230 for two reasons.

1. The inverter is too big fit under the seat.

2. We want to keep the 12v inverter to battery cables short as possible.... That 70/90mm2 stuff is £24 a meter!!!! We looking at £150 of cable and sundries just to hook it up.

3. We want to keep as much space in the rear cabinets for storage.

So it's twin seat base batterys and the 3kva inverter As close as possible to them... Then 240 out as needed via CU with RCD & MCBs.
 
Thing to remember with the cheaper inverters (and power banks) is the "UPS" function is a value add - they want to give you more functionality but don't want to add any more components.

If the output is floating and powering one single device it's generally safe enough, and that's how they expect them to be used. It's why they general have sockets (13 Amp UK or 10 Amp IEC) not hardwire terminals.

What those designs are not good for is hardwiring to distribution wiring or supplying more than one thing in the complexity of a van whose body is grounded for EHU safety.

So the simple rule is keep Inverter 240 and EHU 240 apart.

If you want ease of use go for the higher end stuff that as a transfer switch/relay for LN and a transfer switch/relay for PE to N bonding from the likes of Victron, Clayton, Mastervolt

I love the combi charger inverter we have on the narrow boat, they're not the best on space though as a lot of them use a low frequency inverter and use the same transformer core to do 240v to 12v and 12v to 240v. It makes them incredibly robust physically and electrically but it does mean you have a larger heavier transformer in them. Ours is now 20 years old and is in use most weeks of the year.
 
Check out this inverter deep drive....

Defo one for the geeks... It's faily data and tech heavy.

With love for Renogy and Victron.



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48v is great, I run the domestic solar at that.

It would be good for a Crafter with loads of garage space.

But might be a squeeze in a T6, thought you could do it with twin 24v batterys.

2kw and under is fine for 12v

2kw and up, 24v or 48v should be considered.

I'm just playing devil's advocate and calling on the 12v 3kva Victron challenge.
 
more stuff ordered that i didnt know i needed . . . . .



getting one of these. . .

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which then means i need one of these. . .


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