Blue Sea Systems 2305 Mini BusBar, 100 Amp 4-Stud DC/AC Common Distribution Terminal, No Cover

The Blue Sea Systems 2305 Mini BusBar is a compact common distribution terminal built for organizing DC positive circuits or collecting DC negative and AC grounding conductors onto a single bus. It provides four #10-32 studs on a tin-plated copper C11000 bus set into a reinforced base, giving builders and installers a clean, code-compliant way to consolidate multiple wire runs at one connection point instead of daisy-chaining ring terminals. The bus carries a continuous rating of 100 Amp AC and 100 Amp DC, with a maximum operating voltage of 300V AC / 48V DC, so it is sized for typical helm, panel, and engine-room distribution tasks. The single input terminal accepts 8 AWG to 4 AWG wire for the incoming feed, while the four load terminals accept 16 AWG to 10 AWG wire for downstream circuits, making it suitable for splitting one supply into several branch circuits. Two mounting holes sized for 1/4 inch (6mm) screws allow it to be fastened to a panel or bulkhead. This version of the 2305 is sold without a cover; Blue Sea Systems offers part number 2713 as the matching cover for the 2304 and 2305 MiniBus. Four write-on circuit labels are included for marking each connection point, helping keep multi-circuit panels organized and easy to trace during installation or troubleshooting.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 2305
• Continuous Rating: 100 Amp AC / 100 Amp DC
• Maximum Operating Voltage: 300 Volt AC / 48 Volt DC
• Input Wire Size: 8 AWG to 4 AWG (1 terminal)
• Load Wire Size: 16 AWG to 10 AWG (4 terminals)
• Terminal Studs: 4 x #10-32
• Mounting Holes: Accepts 1/4 inch (6mm) screws
• Bus Material: Tin-Plated Copper C11000
• Base Material: Reinforced polycarbonate
• Number of Circuits: 4
• Circuit Labels: Four write-on labels included
• Cover: Sold without cover; compatible cover is part number 2713
• Dimensions: 1.19 inches long x 1.88 inches wide x 7.88 inches high
• Weight: 0.16 pounds
• Warranty: Lifetime

Frequently Asked Questions

What is the amperage rating of the Blue Sea Systems 2305 Mini BusBar? The 2305 carries a continuous rating of 100 Amp AC and 100 Amp DC, with a maximum operating voltage of 300V AC / 48V DC.

How many studs does the 2305 Mini BusBar have? Four #10-32 studs are provided on the Blue Sea Systems 2305, allowing up to four load circuits to be terminated onto the common bus.

Does the 2305 come with a protective cover? No, this version of the 2305 is sold without a cover. Blue Sea Systems part number 2713 is the matching cover for the 2304 and 2305 MiniBus and can be ordered separately.

What wire sizes can be terminated on the 2305? The single input terminal on the 2305 accepts 8 AWG to 4 AWG wire, while each of the four load terminals accepts 16 AWG to 10 AWG wire.

Can the 2305 be used for negative or grounding connections, not just positive? Yes, the 2305 Mini BusBar is designed for positive distribution or for collecting DC negative or AC grounding conductors onto one common bus.

What is the bus made of on the 2305? The bus on the Blue Sea Systems 2305 is tin-plated copper C11000, set into a reinforced polycarbonate base.

What are the dimensions and weight of the 2305? The 2305 measures 1.19 inches long by 1.88 inches wide by 7.88 inches high and weighs 0.16 pounds.

What size mounting hardware does the 2305 require? The mounting holes on the 2305 accept 1/4 inch (6mm) screws.

Are circuit labels included with the 2305? Yes, four write-on circuit labels are included with the Blue Sea Systems 2305 for marking each connection.

What is the difference between the 2305 and the 2314 MiniBus? The 2305 ships without a cover and has 4 x #10-32 studs, while the 2314 is available with a cover option and uses 5 x #8-32 plus 2 x #10-32 studs.

Is the 2305 covered by a warranty? Yes, the Blue Sea Systems 2305 Mini BusBar is backed by a lifetime warranty.

How many circuits can be run from a single 2305? The 2305 supports 4 circuits off its four #10-32 load studs, fed from one input terminal.