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Blue Sea 100A DualBus 10-Circuit Busbar
Blue Sea 100A DualBus 10-Circuit Busbar
Combined Positive & Negative Tin-Plated Copper Block - Max 48V DC
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DESCRIPTION
Combined Positive and Negative Power Distribution in a Compact Footprint
Managing complex 12V, 24V, or 48V electrical systems requires clean, accessible, and safe wire termination. The Blue Sea 100A DualBus combines both positive and negative buses onto a single, insulated block, providing a consolidated location for electrical distribution connections. By integrating two isolated buses into one unit, this dual busbar eliminates the need to mount separate positive and negative blocks, saving valuable installation space in tight electrical cabinets, marine consoles, and caravan canopies.
Engineered for demanding mobile and off-grid environments, each bus features ten #8-32 (Approx. M4) screw terminals, allowing you to neatly terminate up to ten positive and ten negative circuits in one central location. This layout simplifies fault-finding and prevents the hazardous practice of stacking multiple ring terminals onto a single battery post, which can lead to loose connections, voltage drop, and overheating.
Key Features and Benefits
- Dual Bus Architecture: Combines isolated positive and negative buses on one block to streamline wiring layouts and reduce installation footprint.
- High Conductivity Copper: Manufactured from tin-plated CDA 110 / UNS 11000 pure electrical copper, offering minimal electrical resistance and superior protection against galvanic corrosion in marine and coastal environments.
- Ample Circuit Capacity: Provides ten #8-32 (Approx. M4) screw terminals per bus, ideal for organising low-to-medium amperage branch circuits, electronics, and return paths.
- Versatile Voltage Compatibility: Rated for a continuous 100A flow across systems up to 48V DC and 300V AC, making it suitable for standard 12V setups as well as higher-voltage 24V and 48V battery banks.
- Reinforced ABS Base: Moulded from durable, heat-resistant ABS plastic that provides high dielectric strength and mechanical stability to prevent accidental short circuits against conductive mounting surfaces.
Engineered for Reliability in Harsh Environments
In marine vessels, 4WDs, and off-grid solar setups, vibration and moisture are constant threats to electrical integrity. Inferior brass or steel distribution blocks introduce unnecessary resistance into your system, generating heat and wasting battery capacity. The Blue Sea DualBus overcomes these issues by utilising industry-standard tin-plated copper. The tin plating acts as a protective barrier against oxidation and salt mist, ensuring clean, conductive contact surfaces over years of service.
With a low-profile height of just 5/8 in (15.88mm) and pre-drilled mounting holes, the unit sits flush within shallow wiring enclosures, behind dashboards, or inside battery boxes. Note that this specific model is an open-style busbar supplied without an insulating cover; it should be installed within an enclosed electrical panel or location protected from accidental contact by conductive objects.
Ideal Applications
- Marine Electrical Panels: Consolidating helm electronics, navigation lights, bilge pumps, and instrument grounds behind the dash.
- Caravans and Camper Trailers: Organising 12V and 24V branch circuits for internal lighting, water pumps, fans, and appliance negative returns.
- 4WD Canopy Builds: Creating a neat, accessible distribution hub for dual battery accessories, work lights, and communication gear.
- Off-Grid Solar and Industrial Enclosures: Managing control wiring, monitoring shunts, and low-voltage DC distribution up to 48V DC.
Upgrade Your Wiring Layout
Eliminate wiring clutter and reduce the risk of electrical faults in your power system. Add the Blue Sea 100A DualBus to your setup for a professional, corrosion-resistant distribution point across your caravan, boat, or 4WD electrical installation.
SPECIFICATIONS
Specifications
| Specification | Value |
|---|---|
| Maximum Voltage | 300V AC 48V DC |
| Number of Screw Terminals | 10 per bus |
| Terminal Type | #8-32 Screw |
| Continuous Rating | 100A |
| Base Material | ABS |
| Bus Material | Tin-Plated Copper CDA 110 / UNS 11000 |
| Height | 5⁄8 in (15.88 mm) |
| Weight | 0.14 kg |
Note: Specifications subject to change without notice.
| SKU: | BS-2702B |
| Model #: | BS-2702B |
| MPN: | BS-2702B |
| HS code: | 8536904000 |
| Country of origin: | US |
| Package weight: | 0.168 kg |
| Package length: | 0.21 m |
| Package width: | 0.05 m |
| Package height: | 0.02 m |
WARRANTY
Blue Sea Warranty Policy
Blue Sea Systems products sold by us are supplied with a warranty against defects for the warranty period shown below, subject to the product type, application and the terms of this warranty policy.
The express warranty provided by us is limited to a maximum of 5 years from the original date of purchase, unless otherwise required under Australian Consumer Law.
Blue Sea Systems may offer longer manufacturer support on some products at their discretion
Warranty Lengths by Product Range
| Blue Sea Product Range | Warranty Length | Application / Notes |
|---|---|---|
| Most Blue Sea Systems Products | 5 years | Applies to most Blue Sea Systems products found to be defective in materials or manufacture. |
| P12 Battery Chargers | 5 years | Warranty period starts from the original date of purchase. |
| P12 Remote Displays | 5 years | Warranty period starts from the original date of purchase. |
| Digital Meters | 3 years | Warranty period starts from the original date of purchase. |
| Vessel System Monitors | 3 years | Warranty period starts from the original date of purchase. |
Warranty Assessment and Remedy
If a Blue Sea Systems product is found to be defective in materials or manufacture within the applicable warranty period, we will, at our discretion, arrange a repair, replacement, store credit or refund, depending on the nature of the fault and the requirements of Australian Consumer Law.
Products may need to be returned for assessment before a warranty claim can be approved. Where required, the product must be returned with dated proof of purchase and a clear description of the fault.
Labour costs for removing, replacing, reinstalling or diagnosing a product are not covered by this express warranty unless otherwise required under Australian Consumer Law.
Making a Warranty Claim
To make a warranty claim, please contact us with your dated proof of purchase, product details and a description of the fault.
The product may need to be returned for inspection before the claim can be assessed. If the product is confirmed to be faulty and covered by this warranty, we will advise the available remedy.
What This Warranty Does Not Cover
This warranty does not cover faults or damage caused by incorrect installation, incorrect application, misuse, abuse, neglect, unauthorised modification, accidental damage, normal wear and tear, environmental damage, or failure to use the product in accordance with the manufacturer's instructions.
- Incorrect installation or wiring
- Incorrect product selection or application
- Misuse, abuse or neglect
- Physical or accidental damage
- Water ingress or environmental damage outside the product's intended use
- Unauthorised modification or repair
- Normal wear and tear
- Labour costs for removal, replacement, reinstallation or diagnosis
- Freight, travel or call-out costs unless otherwise required by law
- Products not returned for assessment when reasonably required
Manufacturer Support
Blue Sea Systems may provide additional manufacturer support on some products beyond the warranty period listed above. Where available, we may assist customers in contacting the manufacturer, but any manufacturer support beyond the express warranty period is subject to the manufacturer's own terms and continued availability.
Australian Consumer Law
This warranty is in addition to other rights and remedies available at law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
DOCUMENTS
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