What is breaking capacity in fuses?
> Breaking capacity is the maximum short circuit current a fuse can safely blow without a catastrophic failure such as a fire, breakage or explosion. > Low and high breaking capacity ratings typically range from 35A up to 10kA.
What is the breaking capacity of a 1362 fuse?
6kA AC
Specification
| Brand | Lawson Fuses |
|---|---|
| Rated Breaking Capacity | 6kA AC |
| Rated Voltage | 240V AC |
| Standards | IEC 60269-3, BS 88-3, BS 1362 |
| Type | PL |
What is BS 1362 fuse?
BS 1362 is the British Standard number for cartridge fuse links used in UK plug tops. BS1362 fuses protect the cables connected to domestic equipment against overloads or small overcurrents. They may also be used in appropriate single-phase installations (for example, fused spur connection units).
What is the meaning of breaking capacity?
Breaking capacity or interrupting rating is the current that a fuse, circuit breaker, or other electrical apparatus is able to interrupt without being destroyed or causing an electric arc with unacceptable duration.
How much current can a 13 amp fuse take?
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.
What is a BS 1361 fuse?
BS 1361 is the British Standard number for HRC cartridge fuses in household consumer units and similar applications. We have a range of sizes from 5 to 100 Amps. BS1361 type 1 fuses are used in older household consumer units (fuse-box).
How is braking capacity calculated?
Multiply the number of sets of electrical windings or other components by the voltage each offers. For example, if you are calculating the breaking capacity connected with a three-phase 520-volt transformer, multiply 3 by 520, giving 1,560 volts. Divide the volt-amperage running through the circuit by this voltage.
What is the breaking capacity of a Rewireable fuse?
Semi-enclosed rewireable fuses are made up to 500 A rated current, but their breaking capacity is low e.g., on 400 V service, the breaking capacity is about 4000 A.
How do you size a fuse?
Find the size of fuse by multiplying the amps required by the device (2) by 1.5. 2×1.25 = 2.5 then we will round up to the nearest fuse size (in multiples of 5 amps) which would call for a 5 amp fuse. Cross Reference that fuse size to verify that it’s below the Maximum fuse size called out by this chart.
What is meant by breaking capacity?
Do BS1362 fuses have a breaking capacity of 6KA?
Found max Zs for 3A and 13A so fine there. Would still like it confirming that BS1362 fuses have a breaking capacity of 6kA? Cheers Jock, I took the figure I needed from 41.2 for 0.4s disconnection time. The breaking capacity of BS1362 plugtop fuses is 6kA.
What does BS 1362 mean for fuses?
BS 1362 specifies breaking-time/current characteristics only for fuses with a current rating of 3 A (marked in red) or 13 A (marked in brown). Examples for the required breaking-time ranges are
What is the difference between af63 and BS1362 fuses?
The fuses have the ASTA approval symbol and appear to be branded ‘CF’ and marked AF63. (A BS1362 fuse must have the manufacturer’s name or identifying mark.)
Are Cooper Bussmann fuses BS1362 approved?
The first is an unbranded blue and grey pack containing four 13A fuses. The pack is clearly labelled with ‘Approved to BS1362’. Each fuse is marked with ‘Bussmann’ and the ASTA approval mark. (Cooper Bussmann is a leading brand of fuses.)