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80A BS1361 Time Current Curve

Farmboy over 4 years ago

Hi all

Does anyone have a copy of the graph / curve please, either on its own or perhaps along with a 60A curve?

Thanks

F

Parents

0 Zoomup over 4 years ago

Farmboy:

Zoomup:

I have the current curves in an old regs' book. Does this help a bit here?......

https://www.tlc-direct.co.uk/Book/3.6.3.htm

Although this might be better that I have just found....

http://www1.cooperbussmann.com/pdf/f5b2e5d9-2ddd-4332-bbb2-0f03ca7cf10e.pdf

Z.

Hi Z

Thanks for the reply but I'm not sure about the graphs. The graph in the first link only goes up to 60A but I'm after the 80A curve (I already have the 60A curve), and the curves in the second link don't seem to match those in the first (my eyes aren't as good as they were but from what I can see, the time/currents don't seem to match - but I could be wrong).

Cheers

F

These types of H.R.C. fuses are pretty sluggish in operation and are designed to cope with overloads without the nuisance of fusing too quickly with slight overloads. I have not done so properly, but I will at some point overlay the time/current curves of the B.S. 88-3 fuses over the B.S. 1361 fuses and compare them. I suspect that they are very similar.

Z.
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0 Zoomup over 4 years ago

Farmboy:

Zoomup:

I have the current curves in an old regs' book. Does this help a bit here?......

https://www.tlc-direct.co.uk/Book/3.6.3.htm

Although this might be better that I have just found....

http://www1.cooperbussmann.com/pdf/f5b2e5d9-2ddd-4332-bbb2-0f03ca7cf10e.pdf

Z.

Hi Z

Thanks for the reply but I'm not sure about the graphs. The graph in the first link only goes up to 60A but I'm after the 80A curve (I already have the 60A curve), and the curves in the second link don't seem to match those in the first (my eyes aren't as good as they were but from what I can see, the time/currents don't seem to match - but I could be wrong).

Cheers

F

These types of H.R.C. fuses are pretty sluggish in operation and are designed to cope with overloads without the nuisance of fusing too quickly with slight overloads. I have not done so properly, but I will at some point overlay the time/current curves of the B.S. 88-3 fuses over the B.S. 1361 fuses and compare them. I suspect that they are very similar.

Z.
Cancel
Vote Up 0 Vote Down

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