fork lift charger circuit size

[Riograndeelectric]

I have a customer that wants a 60 amp 3 phase 208 voolt circuit installed for a fork lift charger. I was told it is a 60 amp circuit by the fork lift service tech who rewired the charger for 208 volt 3 phase.
I ma trying to locate a code article that gives me the rating and size of the circuit do I need to adjust by 125%?
the only NEC artilce I can find is 511.10 . where would I look under in the NEC for fork lift chargers?

 

[chris kennedy]

You have the paper work? See what size primary fuses the charger takes at 208, that usually has the 125 built in.

 

[Riograndeelectric]

The service tech said it has 60 amp internal fuses.

 

[augie47]

Other than the one you found, there is no Code Article specific to chargers.
I have not seen one that meets the "max current for 3 hours or more" definition required to be "Continuous".

 

[petersonra]

Battery chargers rarely take full load for any length of time. Unless you can find something in the instructions that says otherwise, or it is a very long run, I think a 60A circuit is quite adequate. In any case, since it has 60A fuses in it already, what would be the point of making the circuit 125% more?

 

[Riograndeelectric]

Thanks all for your input. I was not sure on the 125% rating I was just guessing on this.
Cameron

 

[Barbqranch]

Charger current

Charger current

We have an electric fork lift, with a 3 phase 208 volt charger. It pulls around 48 amps or so for the first few seconds, then drops off fairly quickly. I haven't checked it after 3 hours, but I would be surprised if it is more than 30 amps.

 

[kwired]

... since it has 60A fuses in it already, what would be the point of making the circuit 125% more?

:thumbsup: