Fork Lift Charger

[highspark]

Anyone installed single phase fork lift charger socket? Got to price a job and not sure really what I am looking at. I know I need manufacturers details, running current etc..... What ampage does these usually run at? What size cable am I looking at....

 

[Guitarist]

You simply can't price it without knowing the details mate.

 

[highspark]

I thought this. What sort of cables sizes are we looking at then - minimum to maximum through Experience?

 

[ipf]

Just replaced and upgraded one. Obviously dependant on length of run and specifics, but should be ok with 40 amp mcb, 6mm swa.

 

[Amp David]

I had a 24 volt 110 amp charger last year and manufacturer insisted it needed an 80 amp supply Type D.

In the end we installed a 50 amp C type breaker with 10mm and to this day everything has been perfect. Only a very short run though

 

[Guitarist]

Personally, I wouldn't assume anything. You need a site visit and tech spec. Also, sort out when you would have access to the DB, as you may have to do the work when charging is not needed.

 

[Guest111]

bit like how long is a piece of string,I,ve seen them from little ones on a 13a plug top up to great big hard wired types.never assume anything or you,ll make an assof u and me.

 

[ipf]

As I say, dependant on run and specifics. We are talking single phase socket so have a look at the charger and find out the details.

 

[highspark]

There isnt one installed yet. Customer is moving premises. The run will be about 20m so not too far.

 

[ipf]

What about his existing premises ? Is he taking an existing charger ?

 

[plugsandsparks]

Tough one, seen them in all configurations. Would assume a dedicated supply, breaker cost is about the same anyway so its either 4mm, 6mm or 10mm. Then what are you connecting it with, F/S, isolater, blue commando etc, etc. Somewhere between £300 to £500 would have thought

 

[highspark]

Th unit is 48v 80amp. If someone wants to be so kind and do the calcs for me I'd appreciate it. Got to rush back to job. The length of run will be 25m on 230v supply

 

[Amp David]

Highspark your in box needs emptying:73:

 

[highspark]

Can anyone come along and give me a hand here? Only specifications I have been given are as follows.......230v, 50hz. 6.13KVA, 26.7A. Output 48v 80 A. This is the only information given on the manufacturers sticker. I have been told I need the output wattage BY NAPIT tech guys. Is the 26.7A the maximum ampage this unit will draw? Someone Help!!!

 

[plugsandsparks]

Well thats an interesting set of figures. Looks like you are going to be putting in a 32A supply. Now it gets interesting, if it can live with a C32 breaker, you are aiming for a Zs of 0.58. However a R1+R2 distance of 50m is going to give a resistance of 0.46 using 4mm SWA, so unless your Zdb is less that 0.12 you wont get it in spec.
If you go 6mm SWA then r1+r2 is going to be about 0.31 which should be good enough, but you need to check the Zdb first before choosing the cable.
If you need a D32 - oh dear suggest move the charging point closer to the DB - LOL.

I would ring the manufacturere or get the installation PDF off the internet and confirm what breaker size they recommend.
Hope this helps

 

[highspark]

I am totally confused by all this. Never again. The run will be 25m. Do them figures make sense to you. Napit tech guy says I need an output wattage......this is not on the charger....

 

[plugsandsparks]

Forget that its a red herring. The output wattage you have, its 48X80 but so what. You are putting in a supply feed to the charger, as i have said, the best advice i can give and the only advice i would listen to would be from the manufacturer of the charger. Its not hard, i am ringing manufacturers all the time, just get the make and model number of the charger, google it, get phone number, ring up and ask for technical support, you never know they may be sophisticated and have all their docs online.
Once you have the breaker size, its easy from there.
Sounds like you are making this harder than it needs to be.

 

[Amp David]

Merlin MCBs have a more tolerant max Zs too. Not sure what model MCB but check on there site.

 

[Brightspark2]

Well thats an interesting set of figures. Looks like you are going to be putting in a 32A supply. Now it gets interesting, if it can live with a C32 breaker, you are aiming for a Zs of 0.58. However a R1+R2 distance of 50m is going to give a resistance of 0.46 using 4mm SWA, so unless your Zdb is less that 0.12 you wont get it in spec.
If you go 6mm SWA then r1+r2 is going to be about 0.31 which should be good enough, but you need to check the Zdb first before choosing the cable.
If you need a D32 - oh dear suggest move the charging point closer to the DB - LOL.

I would ring the manufacturere or get the installation PDF off the internet and confirm what breaker size they recommend.
Hope this helps

As above.


Ignore the output ratings, concentrate on the 26.7A, 32A supply, 32A isolator, from experiance it should be fine on a C type breaker. Dont get confused its pretty striaght forward.

 

[highspark]

Iet forum lads are saying 26.7A aswell but I need to be sure. Probably right need to get intouch with manufacturer. Customers are a nightmare though they don't have a clue!