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Cartridge Fuses in Domestic Fuse Boxes.

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How many domestic fuse boxes have you come across within the last year that have B.S. 1361 cartridge fuses in them? I came across one today. You know the ones. The 5 Amp cartridge fuse is just a little shorter than a 5 Amp. 13 Amp.  plug fuse. The 15 Amp fuse is coloured blue, 20 Amp yellow and 30 Amp red. The shower fuse may have been 35/40 or 45 Amp. I seem to remember that the 45 Amp carrier was orange. I have an old Wylex carrier here that has a brown cartridge fuse carrier and an orange base. I was impressed years ago with a cartridge fuse maker's video advert. It said that when a fuse blows you fit a new unused cartridge fuse that affords great protection and reliability, unlike with a circuit breaker that after time and many operations may become unreliable. That impressed me at the time.


Z.
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  • 0
    It's a shame that no one seems to do cartridge switch fuses other than the 13A fused connection unit any more.

    I have a job whereby I need to feed a outbuilding via 6.00mm SWA and I need to provide protection. Problem is that there is only enough room in the intake area for something like a 2 way enclosure.

    A 40A cartridge fuse on a DIN rail at the side of a dp isolator would have been ideal but they all seem to be 4 way., so I'll have to go down the 2 pole 40 amp Type C mcb route instead.

    I'm rating it at 40A to get round an upfront RCD because there isn't room and I'm going to have to drop a couple of Henlys into the tails - the house CU is remote from the supply intake and there is only one spare way left.

    Yes I mourn the demise  of a simple cartridge fuseholder!

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  • 0
    It's a shame that no one seems to do cartridge switch fuses other than the 13A fused connection unit any more.

    I have a job whereby I need to feed a outbuilding via 6.00mm SWA and I need to provide protection. Problem is that there is only enough room in the intake area for something like a 2 way enclosure.

    A 40A cartridge fuse on a DIN rail at the side of a dp isolator would have been ideal but they all seem to be 4 way., so I'll have to go down the 2 pole 40 amp Type C mcb route instead.

    I'm rating it at 40A to get round an upfront RCD because there isn't room and I'm going to have to drop a couple of Henlys into the tails - the house CU is remote from the supply intake and there is only one spare way left.

    Yes I mourn the demise  of a simple cartridge fuseholder!

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