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How many watts can a 13 amp fuse take?
3000 watts
Plugs for appliances rated between about 700 watts and 3000 watts (the maximum rating of a wall socket) should be fitted with a 13-amp fuse (coloured brown). For example: 13A Fuse – Washing machine, dishwasher, microwave, kettle, toaster, iron.
How much current can a 13 amp fuse take?
BS 1362 Fuse Operation Characteristics In fact a 13A fuse will allow a current of 20A to pass indefinitely without blowing.
Can I use a 5 amp fuse instead of a 13 amp?
It would probably need to be 1.25mm2 in size or larger to safely be protected by a 13A fuse. Having said that, a “6A” (In reality it will be rated in Watts) iron is unlikely to blow a 5A fuse in reality. The factor is about 1.6, so a 5A fuse would likely blow at 8A or so.
Which is the correct formula for fuse rating?
Fuse rating: Exact duty of the fuse. For continuous running, The Motor fuse rating is equal to 1250 times of motor real power P (kW) in kilowatts divided by the product of the applied voltage V (V) in Volts and Power factor. Hence motor fuse rating formula, In other words, the fuse rating is equal to 1.25 times the full load current.
What should I look for when selecting a fuse?
When selecting the proper fuse, it is important to look at the peak let-through current, I peak (Ampere) and nominal melting, I 2 t (Ampere Squared Seconds), ratings. The I peak value is the peak amount of current a fuse will let through before clearing. The I 2 t value is the amount of thermal energy required to melt the fuse element.
What do fuse markings on a fuse mean?
Fuse Markings Fuse Marking Example More Information Manufacturer / Brand: Bussmann View all the brands we sell Part number / Series: NSD20 Search for fuses using part numbers or k Ampere Rating: 20 A Search for fuses by ampere rating Interrupting Rating: 80 kA Explanation of Interrupting Rating
How to calculate fuse rating for three phase transformer?
For Three-phase transformer, Transformer fuse rating = 2000 x S (kVA) / (1.732 x V (V-L)) Example: Calculate the fuse sizing of the 250kVA, 415 V three-phase transformer. Fuse rating = 2000 x 250 / 1.732 x 415 = 696 Amps. Hence the nearest available size of the fuse is 710Amps. Therefore, 250kVA transformer can be charged with the 710A fuse.