EARU JD1912 Relay Fuse Box Features and Waterproof Design
The EARU JD1912 Box integrates six independent relay slots in a sealed waterproof housing rated for saltwater and freshwater environments. Pre-wired terminals use 12 AWG gauge copper conductors, eliminating loose connections and reducing circuit resistance by up to thirty percent compared to field-wired alternatives. Each slot accommodates standard ATC or ATO fuses from 5 to 60 amperes, giving you flexibility across multiple circuit protection requirements. The injection-molded polycarbonate enclosure resists UV damage and thermal cycling, maintaining structural integrity through temperature swings from negative twenty to eighty degrees Celsius. Installation takes minutes on any 12-volt system; the compact form factor fits engine bays, compartments, and panel mounts without custom fabrication.
Why Installers Choose This Waterproof Relay Block for Marine and Automotive Applications
Marine electricians and automotive technicians rely on pre-wired relay solutions because they reduce labor hours and eliminate solder joint failures that plague field installations. The six-slot configuration handles starter relays, accessory circuits, fuel pump protection, and bilge pump sequencing in a single component, simplifying wiring diagrams and troubleshooting. Sealed terminal blocks prevent corrosion in salt spray environments, meeting automotive grade standards without premium pricing. Thousands of commercial fishing vessels and off-road platforms use this exact relay box architecture for its proven durability across decades of real-world service. Shop the official EARU store now and get fast shipping with a two-year manufacturing warranty on every unit.
E***n –
I use this box as the main 12v fuse box for my camper in which i renewed most of the equipment and electrical system.
It fits perfectly to my use case.
Separately i bought a switchboard and that works perfectly together.
Do note that when you run this box on lithium batteries, the relays get pretty hot.
In this case, use a step down converter
l***y –
great product! ! content the mon after! !
J***i –
At first glance it looks good, after use I will add another review.
J***z –
The relay box was 5 pins and the one that arrived is 4. I do not know if it meets the conditions.