Doubling Up Connections on Breakers

[carlyai]

Doubling up connections on breakers is not good practice, (I read this after I wired the CU up) so I decided to rewire to remove the double up breaker connections.

Having another look the box is probably too small for all the 6mm2 cables and probably cause more problems by connecting 6 cables to the RHS terminal block.

At the moment it all working at 16A but I want to bump the charge current up the 32A. 

I could try it like it is and monitor it with my heat-sensing camera.

 

Any suggestions?

 

Also: I have my pool equipment on the same feed. It draws about 8A when running.

I need to design a cct. like:

 

If the current is greater than 5A, don't charge EV, if not charge, repeat.

I need some relays and comparator I think.

Any bits of electronics that can help with my design?

 

[Dan O]

5 minutes ago, carlyai said:

Doubling up connections on breakers is not good practice, (I read this after I wired the CU up) so I decided to rewire to remove the double up breaker connections.

Having another look the box is probably too small for all the 6mm2 cables and probably cause more problems by connecting 6 cables to the RHS terminal block.

At the moment it all working at 16A but I want to bump the charge current up the 32A. 

I could try it like it is and monitor it with my heat-sensing camera.

 

Any suggestions?

 

Also: I have my pool equipment on the same feed. It draws about 8A when running.

I need to design a cct. like:

 

If the current is greater than 5A, don't charge EV, if not charge, repeat.

I need some relays and comparator I think.

Any bits of electronics that can help with my design?

 

did you design this set up and wire all this up yourself?

[Crossy]

For your current sensing have a look at these https://www.lazada.co.th/products/m3050-m3056-ac-current-detection-alarm-03a-30-v50-v-current-sensing-switch-i5132554704-s21673895200.html?

 

You'll need a contactor to control the car charger.

 

[Crossy]

Provided your wires are about the same size and the total doesn't exceed the terminal size limit doubling up isn't too bad, it's done all the time in the UK for ring finals.

 

You could get double entry ferrules and crimp both wires in there then into the terminal.

[carlyai]

46 minutes ago, Dan O said:

did you design this set up and wire all this up yourself?

Yep a bit rough I know.

[carlyai]

48 minutes ago, Dan O said:

did you design this set up and wire all this up yourself?

[carlyai]

37 minutes ago, Crossy said:

For your current sensing have a look at these https://www.lazada.co.th/products/m3050-m3056-ac-current-detection-alarm-03a-30-v50-v-current-sensing-switch-i5132554704-s21673895200.html?

 

You'll need a contactor to control the car charger.

 

https://img.lazcdn.com/g/ff/kf/S432269cb5aaa40e98f2115c633de22bdF.jpg_2200x2200q80.jpg_.webp

Thanks. I hate them camels, angry buggers.

 

Mount another box above the present box with the contactor etc.

[Dan O]

26 minutes ago, carlyai said:

Yep a bit rough I know.

It past a bit rough a while ago. I would redo the box with a larger panel and wire it properly 

[carlyai]

3 minutes ago, Dan O said:

It past a bit rough a while ago. I would redo the box with a larger panel and wire it properly 

Yeah.....Nu

[Crossy]

33 minutes ago, Dan O said:

It past a bit rough a while ago. I would redo the box with a larger panel and wire it properly 

 

Call it a "proof of concept" 

[Fruit Trader]

MCB's or DIN rail devices of reasonable quality will have caged clamp down terminals. These should accommodate two single or 7 strand cables up to 6mm without ferrules.
 

 

[BritManToo]

1 hour ago, Crossy said:

Provided your wires are about the same size and the total doesn't exceed the terminal size limit doubling up isn't too bad, it's done all the time in the UK for ring finals.

 

You could get double entry ferrules and crimp both wires in there then into the terminal.

The electrician fitting my EV charger point doubled up the EV socket with the 4kw bathroom shower last weekend 32a MCB. 

[carlyai]

2 hours ago, Dan O said:

It past a bit rough a while ago. I would redo the box with a larger panel and wire it properly 

Can you show me some of your currently wired equipment, so you can learn me?

[Dan O]

3 hours ago, Crossy said:

 

Call it a "proof of concept" 

Compared to the original wiring in my house here this is next level work!

[carlyai]

6 minutes ago, Dan O said:

Compared to the original wiring in my house here this is next level work!

Waiting ....show me how to improve myself. 🙂

[Dan O]

1 hour ago, carlyai said:

Can you show me some of your currently wired equipment, so you can learn me?

I'm not an electrician but have replaced wiring and installed a solar panel system.  You can do a search on the internet as well.   That box is just way to small (size wise for me) and the use of those terminal blocks and doubling circuits isn't good long term. 

 

Below is what I started from at the farm and the second was my quick change over and then cleaned up farther after I traced out each circuit and broke them up. 

[JBChiangRai]

You could consider a timer and 2 way contactor.

 

Power is supplied to pool on contactor NC poles, timer adjustable to 8 hours (typically 1,2,4,8 hours selectable), when selected NC opens and NO to EV charger closes.

 

Contactors are available everywhere, I'm sure you can find a timing module on AliExpress or Lazada.

 

 

[carlyai]

5 hours ago, Fruit Trader said:

MCB's or DIN rail devices of reasonable quality will have caged clamp down terminals. These should accommodate two single or 7 strand cables up to 6mm without ferrules.
 

 

@Fruit Trader where do you get diagrams like this please?

I was having a senior moment with a 2 outlet power socket with 2 on/off switches and it all fell to pieces. Can get most back together but have 4 clips that a diagram like this would help me with.