BlueSea Systems 2023 Catalog CIRCUIT PROTECTION 62 ST-Blade Water-Resistant Fuse Block Provides water-resistant circuit protection for ATO/ATC fuses & circuit breakers in a compact footprint • Water-resistant IP66 design • Accepts standard ring or fork type terminals to allow for simple wiring with standard tools • Accepts a wide range of wire sizes • Integral plugs maintain water-resistant rating if less than four loads are required • Accepts ATO, ATC and EasyID fast-acting blade fuses (p. 57) • Accepts ATO/ATC-Style Low Profile Circuit Breakers (p. 77) • Nests with ST-Blade Water-Resistant Fuse Block (5056 or 5056100) and Water-Resistant 100A Bus Bar (2356 or 2356100) • Tin-plated copper busses and fuse clips • Includes four write-on circuit labels • Small format standard and custom labels available • Spare fuse and fastener storage in cover • Fuses (p. 57) and circuit breakers (p. 77) sold separately Water-Resistant BusBar page 100 Part # Description Cover 5056 ST-Blade Water-Resistant Fuse Block Screw Cover 5056100 ST-Blade Water-Resistant Fuse Block Manual Cover 5.41" 137.3mm 4.73" (120.1mm) 0.68" (17.2mm) 1.99" (50.5mm) 3.39" (86.1mm) 1/4" Mounting Screw Holes ATO, ATC & EasyID Fuses page 57 ATO/ATC Circuit Breakers page 77 For the full list of specifications see page 73 For the mounting diagram see page 100 5056100 5056 Voltage Max. Operating 32V DC Amperage Max. Operating 80A per block / 25A per circuit Fuse Type ATO or ATC fuses & circuit breakers Input Wire Size (1) 8 AWG to 4 AWG Load Wire Size (4) 16 AWG to 10 AWG Bus Material Tin-Plated Copper C11000 Mounting Thru-hole Accepts 1/4" (6mm) screws Screw Terminal 4x #8-32 Screws with captive star lock washer Stud Terminal 1x #10-32 Regulatory For an ABYC/USCG compliant design use (5056100) CE marked, IP66 - protected against powerful water jets (see inside back cover) ST-Blade Water-Resistant Fuse Block The difference between our new ST-Blade Water-Resistant Fuse Blocks and Busbars are how the fuses and terminations are accessed: Part numbers 5056 / 2356 utilize #8 screws to secure the cover to the rest of the housing, requiring a screwdriver – or tool – for access, and do not meet ABYC requirements for panel boards. Part numbers 5056100 / 2356100 utilize yellow wing-screws that can be manipulated by hand, and comply to the following: ABYC E-11.4.23 states: Panelboard - an assembly of devices for the purpose of controlling and/or distributing power on a boat. It may include devices such as circuit breakers, fuses, switches, instruments, and indicators. ABYC E-11.4.27 states: Readily Accessible - capable of being reached quickly and safely for effective use under emergency conditions without the use of tools. ABYC E- states: A panelboard shall be installed in a readily accessible location and shall be weatherproof or be protected from weather and water splash. The ST-Blade Water-Resistant Fuse Blocks and Busbars are rated IP66 and withstand water from heavy seas or projected in powerful jets, allowing for flexible installations anywhere on boats or vehicles. Related Products TECH TIP