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Grid switch ratings enquiry

Farmboy
Had an interesting chat with a tech dept this afternoon after coming across some grid switches in a domestic kitchen.


Four grid switches (sharing a common backbox) are each fed via their own 16A cb's, and each feeds 1G sockets (for a cooker hood, fridge freezer, etc). Ignoring the cable sizes (the focus being on the grid switches), given the 13A plug fuses limits the loads in each cct, would you have the current rating of the grid switches equal to or higher than the 16A cb's (e.g. 20A), or lower (but equal to or higher than the socket rating e.g. 13A/14A)?


F
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    An interesting thing about 536.4.2.3 (which may be relevant or not to the discussion) is that it doesn't seem to apply to all switching devices. It specifically mentions "switches complying with 60947-3 or 60669-2-4.....snip" which looking at the entry for switching devices in Table 537.4 are the only two suitable for Isolation. Now grid switches I believe are typically to 60669-1 (even the ones printed Cooker etc), so a) aren't suitable for Isolation, and b) not apparently within the scope of 536.4.2.3?
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    An interesting thing about 536.4.2.3 (which may be relevant or not to the discussion) is that it doesn't seem to apply to all switching devices. It specifically mentions "switches complying with 60947-3 or 60669-2-4.....snip" which looking at the entry for switching devices in Table 537.4 are the only two suitable for Isolation. Now grid switches I believe are typically to 60669-1 (even the ones printed Cooker etc), so a) aren't suitable for Isolation, and b) not apparently within the scope of 536.4.2.3?
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