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[KillerWatt]

50A fuse removed... silence is golden ! Cheers for the advice 

A photo of which one would make a great guide

IIRC, there is only one 50A fuse (in the fusebox next to the battery).

[KillerWatt]

The SAI pump surly cant be 50A can it?  :-? :-? :-?

No it isn't, but the initial start up current is pretty damn close.

[Andy H]

To avoid over stressing cables and fuses you should try and select a fuse & cable rated at twice the current you expect.

A 50A fuse is intended to blow at 50A. If you run at the limit things start to get warm and the voltage drop can cause problems.

[bigdods]

50A fuse removed... silence is golden ! Cheers for the advice 

A photo of which one would make a great guide

IIRC, there is only one 50A fuse (in the fusebox next to the battery).

Correct, there was only one 50A fuse. I will take a piccy of the fusebox at the weekend and post up for use as a reference - is this something worth adding to the Technical guides ?

[KillerWatt]

To avoid over stressing cables and fuses you should try and select a fuse & cable rated at twice the current you expect.

A 50A fuse is intended to blow at 50A. If you run at the limit things start to get warm and the voltage drop can cause problems.

[Marks DTM Calib]

To avoid over stressing cables and fuses you should try and select a fuse & cable rated at twice the current you expect.

A 50A fuse is intended to blow at 50A. If you run at the limit things start to get warm and the voltage drop can cause problems.

Nah....I²t mate!

[Marks DTM Calib]

Best explanation I can find is here:

http://www.circuitprotection.ca/fuseology.html

[Andy H]

Best explanation I can find is here:

http://www.circuitprotection.ca/fuseology.html

The SAI pump surly cant be 50A can it?  Huh Huh Huh Shocked Shocked

The point I was going to make (but failed  ) was that a 50A fuse is probably protecting a circuit that normally draws around 25A.

[Marks DTM Calib]

Best explanation I can find is here:

http://www.circuitprotection.ca/fuseology.html

The SAI pump surly cant be 50A can it?  Huh Huh Huh Shocked Shocked

The point I was going to make (but failed  ) was that a 50A fuse is probably protecting a circuit that normally draws around 25A.

Again, it depends on the fuse type.

The circuit (with the correct fuse type) could be 40A with an in-rush current of 150A for a short period.

Also remember, a fuse does not protect the circuit, it protects the supply (as if it blows, there is already a fault in the circuit)