This fused mains thermoplastic plug 3-Pin 13A has a fuse built into it and three rectangular blades arranged in a triangle (usually a 3 amps fuse for smaller appliances such as a computer and a 13 amps one for heavy-duty appliances such as heaters).These sockets include shutters on the live and neutral contacts that prevent the introduction of foreign objects.Ring circuits protected by 32 A circuit breakers link the power outlets in a home. Fused plugs are necessary for this wiring, which is rarely used outside the UK.Perfect for heavy-duty appliances like coffee makers and small devices like phone chargers, etc.Technical Information:Color: BlackPack: 10