3amp in a 13amp FCU?

[ickleric]

Hi,

I'm just fitting a FCU for my boiler, running a spur of a socket in the same room which is on the ring main. Now on a previous thred someone said to use a 3amp FCU for the boiler. So just been to B&Q and they only had 10amp and 13amp FCU. So i bought a 13amp FCU, which lets you change the fuse. But it doesn't say wether you can put a 3amp into it? Would it be ok? I can't see why it wouldn't but want to check

Cheers in advance.

 

[JonoPashley]

13A is the maximum rating for the FCU not what it should be fused at. So the 3A fuse would be fine.

 

[Steve]

ALL FCUs are 13 amp.

The 10 amp "FCU" you saw was likely a lightswitch

 

[ickleric]

thats what i thought it would be, best to check though.

cheers for your help.