Plug Top Fuses
Plug top fuses are small ceramic cartridge fuses that sit inside a 13A plug or fused spur and protect the appliance flex from overheating if a fault occurs. We stock Deta BS 1362 plug top fuses in 2A, 3A, 5A, 10A and 13A ratings, covering everything from lamps and chargers to kettles and heaters.
Stock up at trade prices with an account, and have fuses ordered by 5pm Monday to Friday delivered on the next working day across Northern Ireland and the Republic of Ireland.
Choosing the right plug top fuse
A plug fuse protects the flexible cable between the plug and the appliance. The right rating lets the appliance run normally while still blowing quickly enough to protect the flex if something goes wrong.
Common ratings and typical uses
- 2A - low-power equipment where the manufacturer specifies it, such as some lamps and electronics.
- 3A - appliances up to roughly 700W, such as table lamps, TVs, computers and small chargers.
- 5A - some appliances where the manufacturer specifies this rating.
- 10A - less common, used where specified for mid-range loads.
- 13A - higher-power appliances above roughly 700W, such as kettles, heaters, irons and washing machines.
Always follow the appliance manufacturer's guidance; the rating on the appliance plate or manual takes priority over general rules of thumb.
Where plug top fuses are fitted
The same BS 1362 fuse is used in rewireable plug tops, moulded plugs and fused connection units (fused spurs). When fitting a new plug, check the flex size suits the fuse rating, using our flexible cable range if a replacement lead is needed.
Safety tips
- Unplug the appliance before opening the plug or fuse carrier.
- Never replace a fuse with a higher rating, foil or wire.
- If a new fuse blows straight away, stop using the appliance and have it checked.
- Confirm a suspect fuse with a continuity tester from our testing equipment range.
Ordering from Meteor
Meteor Electrical is a family-run wholesaler with 40+ years in the trade and 5,000+ products in stock. Orders above £30 / €35 ex VAT are delivered free, and you can collect from our Cookstown trade counter with Click & Collect.
FAQ's
- What are Plug Top Fuses?
- What rating should a plug be?
- Which fuse do I use in my appliances?
- What does BS 1362 mean on a plug fuse?
- Do fused spurs use the same fuses as plugs?
- How do I test whether a plug fuse has blown?




