This discussion is locked.

You cannot post a reply to this discussion. If you have a question start a new discussion

Grid switch ratings enquiry

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

Parents

0 Farmboy over 5 years ago

wallywombat:

Bear in mind that a single socket could have a 2-way unfused 'cube' adaptor plugged into it, effectively turning it into a double socket, where 20A may flow (but never 26A, because that never happens, because Reasons),

Good point, so perhaps being sockets in this specific scenario aren't the best items to use as examples, the issue is more to do with the order of items based on current rating e.g. load, switch, ocpd, or load, ocpd, switch.

F
Cancel
Vote Up 0 Vote Down

Cancel

Reply

0 Farmboy over 5 years ago

wallywombat:

Bear in mind that a single socket could have a 2-way unfused 'cube' adaptor plugged into it, effectively turning it into a double socket, where 20A may flow (but never 26A, because that never happens, because Reasons),

Good point, so perhaps being sockets in this specific scenario aren't the best items to use as examples, the issue is more to do with the order of items based on current rating e.g. load, switch, ocpd, or load, ocpd, switch.

F
Cancel
Vote Up 0 Vote Down

Cancel

Children

No Data

Grid switch ratings enquiry

Community Rules & Guidelines