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Ceeform 32A OCPD rating?

Hi, 

What size MCB should be used for a 32A industrial ceeform socket? 

The appliance I am looking at comes with a 32A plug, with the device (an EV) itself pulling 31A of power continuously. The device is an Ohme charger, as per the below link: 

https://ohme.odoo.com/shop/ohme0402gb001-ohme-go-commando-to-type-2-uk-5

I generally try to load MCBs to a maximum of 80% of their capacity, therefore the suitable choice for the 32A socket outlet would be a 40A MCB. 

The ceeform has no built in fuse, like a 13a socket so in theory, the socket could be overloaded if used in conjunction with a bunch of splitters and extension leads. 

Thoughts? I’m sure the regs state something about 16A sockets protected by 20A MCBs, but I am unsure about 32A. 
 

Thanks. 

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  • Former Community Member
    0 Former Community Member

    broadgage: 
     

    In the USA, the electrical code restricts long term loading of circuits to 80% of the nominal capacity, or put another way requires a circuit capacity of 125% of the design load.

    My understanding is this is because US MCBs are rated by tripping current not holding current. So a US 30 A MCB will actually trip at 30 A (eventually) whereas a European 32 A must hold at 1.1x

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  • Former Community Member
    0 Former Community Member

    broadgage: 
     

    In the USA, the electrical code restricts long term loading of circuits to 80% of the nominal capacity, or put another way requires a circuit capacity of 125% of the design load.

    My understanding is this is because US MCBs are rated by tripping current not holding current. So a US 30 A MCB will actually trip at 30 A (eventually) whereas a European 32 A must hold at 1.1x

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