This is the new (March, 2026) Carp Coastal Marine website. Looking for our old online shopping website? Both websites allow purchasing of our entire line of marine supplies. Click Here for the old Marine Store

BLUE SEA SYSTEMS 5121-BSS FUSE JJN (CLASS T) 400 AMP

Price: $80.09
Retail price is shown. * Add this item to the Shopping Cart to see your reduced price.

Product Description: Fuse JJN (Class T) 400 Amp Fast short circuit response makes this the best choice to protect high amperage electronics equipment such as inverters. 20,000 Amp Interupt Capacity (AIC) UL rated for DC applications under UL189L.
ALT Part Numbers: BLU 5121, 54-4614
Important Note for Boat, Engine and Generator Parts: The responsibility for the accuracy of your order rests with you, the customer. If you have any question as to whether or not the part you are ordering is the right one for your boat/engine/generator, please do not hesitate to call us immediately at 321-952-1303 Monday-Friday 8-5pm. This is important to save both time and money. Carp Coastal Marine will be responsible for any mistakes that we make. However, if you make the decision without consult from us, then restocking and freight charges will be added to your order.

Brand: Blue Sea Systems

SKU:661-5121

UPC:632085051211

Product Weight:  0.29 lbs. Product Width:  6" Product Depth:  2" Product Height:  4"

Your Price: $76.69
Add to Cart