I am looking for some advice regarding overcurrent protection for a few 
common international AC receptacles.

Suppose we have a product that takes an input of 120/208Y from a 30A 
service, and we want to put a North American convenience outlet on it (Nema 
5-15R).  We would put a 15A fuse or breaker in series with the line side of 
the 120V feed to this outlet, as required by the Canadian and US electrical 
codes and reinforced by most CSA and UL safety standards.

Now suppose we have a similar situation in a 230Vac product for the European 
market, with say a 30A, 230Vac supply circuit to the product.  Suppose this 
is ITE so we are subject to EN60950 for Europe.  If we want to put a Schuko 
convenience outlet on the product, I assume we have to put overcurrent 
protection ahead of it.  Am I right in this assumption?  If so, what is the 
current rating required, and does the overcurrent protection have to be in 
both sides of the supply or is a single item OK?  Where is all of this 
written down?

I have the same questions regarding the British and Australian sockets too.

Any help the forum can give me will be greatly appreciated.

Jim Eichner
Statpower Technologies Corporation
[email protected]
The opinions expressed are those of my invisible friend, who denies anything 
attributed to him by Egon Varju :>)

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