Bow thruster fuse

[Desmo]

Can someone explain why a Blue Sea Systems 250 AMP ANL fuse is priced around £28, when a seemingly compatible 250 AMP ANL fuse off an electric forklift is around £6. I have just bought the later and the difference appears to be the ceramic part covering the fuseable link and the reference to "ignition protected" on the Blue Sea Systems fuse. I attach pics. I intend to test the cheap fuse out but would welcome any input on this subject.

 

[andsarkit]

It is for a boat so will naturally cost a lot more.
You can get an ignition protected one for a lot less. Furneaux Riddall.
It is possible that the fuse element is better enclosed and so less likely to ignite any petrol fumes or gas.

Edit: the bolt sizes seem slightly different 5/16" (8mm) against 11mm

 

[Desmo]

It is for a boat so will naturally cost a lot more.
You can get an ignition protected one for a lot less. Furneaux Riddall.
It is possible that the fuse element is better enclosed and so less likely to ignite any petrol fumes or gas.

Edit: the bolt sizes seem slightly different 5/16" (8mm) against 11mm

I have bought a couple form Furneaux Riddall and they are the same fuses I bought for a Forklift! I have installed these and although the bolt size is slightly larger as mentioned (Furneaux are the same) this does not present an issue when bolted down between the washers. So far so good with no repeat blowing of the fuse.