Blue Sea Systems 2701B-BSS DualBus 5-Circuit BusBar

Blue Sea Systems DualBus 100A Common BusBar (+/- 5 Circuits)

The Blue Sea Systems 2701B-BSS (Catalog SKU 2701) is a high-density, marine-grade DualBus power distribution block designed to consolidate both positive (+) and negative (-) electrical connections into a single, compact footprint. Featuring two isolated tin-plated copper busbars on one non-conductive base, it provides 5 screw terminals per bus bar (10 screw terminals total) for distributing DC power or AC common/ground lines in space-constrained vessel helms, console electronics boxes, and electrical panels.

Engineered with a central raised insulating barrier to prevent accidental shorts between positive and negative circuits, the 2701B-BSS is rated for a continuous current capacity of 100 Amperes per bus. Constructed from high-impact glass-reinforced thermoplastic and high-conductivity CDA 110 copper with stainless steel hardware, it provides maximum protection against galvanic corrosion and harsh salt-air degradation. 

Key Features

• Dual-Bus Space-Saving Footprint: Combines positive feed and negative ground return buses on a single compact molded block.

• High Thermal & Current Rating: Delivers 100A continuous rating per bus bar across low-voltage DC and high-voltage AC systems.

• High-Conductivity Tin-Plated Copper: Made from CDA 110 / UNS 11000 electro-tin plated copper for minimal resistance and oxidation protection.

• Integral Center Isolating Wall: Molded barrier ridge separates positive and negative sides to safeguard against short circuits.

• Captive Star Lock Washers: Includes #8-32 terminal screws equipped with captive lock washers for secure ring-terminal installation under heavy vibration.