BOJACK MEGA/AMG High Current Fuse Bolt-on Fuse 40A Amp for Cars, Trucks, Construction Vehicles, Buses, Caravans (Pack of 2 ANM Fuses 40A)

Proper fuses of good quality.

Very good value alternative to premium brands. Has shown no signs of an issue in months of operation and I'd be happy to use this brand again

Good but a bit expensive for 2 fuses

I used this fuse to connect my solar charge controller in the Victron Power Distributor.

Does what it says on the tin

Good mega fuse holder (two in the box) which I use on solar battery bank and avoids the issues of the cheaper fuse switches instead fit an isolator switch and a mega fuse and avoid the worry. Just about fits M10 lugs on 2awg cable after you remove one washer (comes with two for each bolt which are M8 size). I use these to hold more expensive mega fuses from victron instead of paying their more expensive price. This gives me peace of mind the fuse is a good brand while also keeping costs to a minimum. Definitely would buy again just wish everyone used M10 bolts as standard. Most battery isolator switches are M10 as standard, and should always be fitted in my opinion.

I wanted to know the fuse will actually open at a sensible current, so I bought 2x 100A and popped one by putting it in the ground circuit for a TIG welder.It withstood 15 seconds at 160A. I gave it a short pause and then it popped in about 7 seconds at 170A. This is roughly what I would expect.The picture shows plastic melting on one side - it started within seconds at 130A. This does not reflect badly on the fuse itself, it shows that the poor connection with the 60mm battery clip is generating a lot of heat. The big welding ground clamp on the right makes a firmer connection and there was no melting.Other info from the disassembly: it contains a nice little mica window which cleaves beautifully.

One shot fuse.