Blue Sea Systems Class T Fuse Blocks

Protection from battery to Inverter.A special thanks to the people at Amazon fulfillment Service Hebron KY. that pack the Holder in a " Box " versus a cheep gray plastic bag.

when you read that this is heavy duty, that doesn't do it justice. It is massive and up to the task of providing a way to mount the 400 Amp fuse I needed. I am surprised that product information is so sparse. The 3/8" studs and bolts are 1-7/8" on center for the Fuse and the cover easy accomodates up to #4/0 cable lugs. The fuse probably should not be shown, since it doesn't come with it. It can accept (like it shows 225 to 400 Amps). I previously installed a cheaper fuse block, which was not up to the task... there is no substitute for quality and when protecting your RV, peace of mind is king.

Very well made block. Listing is exceptionally misleading.Lists as a 160a, and shows a fuse in the pictures, does not include the fuse.Says only one time at the bottom of the description that fuse is not included, which I and several others completely missed.One star for misleading listing practices.Shame because the block is well made and fancier than your typical block. Will not do business with crimpsupply.com in the future.

This is one beefy piece of hardware. It took a lot of looking on the Blue Sea website to make sure this block was the right one for the fuse I was buying. They have a mechanical drawing, but the drawing is missing the most important dimensions: The post spacing! I included an updated drawing showing the post spacing and lug size. I hope this helps the next guy.

Mounted this inside the engine bay of my 2024 Chevy Silverado 3500. I made a 3D printed ASA filament holder for this fuse hose hold and it works great!

We buy this product quite a bit and it can be very hard to find with limited supply in the retail stores, and it’s always available from this vendor and arrives very quickly never a functionality problem

I tried now two different T fuses from two different brands, neither fit. The post on the block are 1/4-1/2 inch to close and the fuses won’t fit onto the holes.The block does appear very well built and strong. I will need to order a new class t fuse for it to finish install.

JUST a word to the wise: APPARANTLY there are different sizes of "class-T" fuses. i had no idea. honestly, i never heard of a class-T fuse before a few months ago. i got some Mersen 200A and 400A fuses for my solar setup. the 400A fit this JUST FINE! the 200A... well... needed some "modification". the holes were too small and too close together to fit this fuse holder. i had to drill the mounting holes in the fuses out to fit. in my inexperience, i mistakenly thought all class-T fuses were, well, standardized in size. they. are. not.