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Blue Sea DC Battery Management Switch Panel for Dual Batteries with Three m-Series ON-OFF Battery Switches
Blue Sea DC Battery Management Switch Panel for Dual Batteries with Three m-Series ON-OFF Battery Switches
300A Continuous up to 48V DC - Ignition Protected with Parallel Switch
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$523.04
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DESCRIPTION
Comprehensive Dual-Battery Control and Circuit Isolation
The Blue Sea DC Battery Management Switch Panel provides a dedicated, central control point for managing dual-battery electrical systems in marine and off-grid environments. Equipped with three heavy-duty m-Series ON-OFF battery switches, this panel effectively separates the engine starting circuit from the house auxiliary circuit. By isolating these loads, it ensures your starting battery remains fully charged and ready for engine cranking, even if the house battery bank is depleted by onboard appliances, lighting, or navigation systems.
Designed for demanding applications up to 48V DC, this management panel supports high-current loads of 300A continuous and 500A intermittent. Unlike standard selector switches that can accidentally leave both batteries connected and vulnerable to total discharge, this three-switch configuration gives operators intuitive, independent control over the House, Engine, and Emergency Parallel circuits.
Key Features and System Benefits
- Independent Circuit Isolation: Dedicated switches for both the engine and house battery banks allow you to manage and isolate circuits individually for maintenance or storage.
- Emergency Parallel Capability: Features a dedicated third switch to cross-connect and combine both isolated battery banks, providing vital emergency starting power if the primary cranking battery runs low.
- Electronics Protection: Isolating the house circuit from the engine circuit shields sensitive onboard electronics, such as chartplotters and radios, from damaging voltage sags and spikes caused by engine cranking.
- Ignition Protected: Certified safe for installation aboard petrol-powered vessels, reducing the risk of igniting surrounding flammable vapours in engine compartments.
- High-Current Capacity: Rated for 300A continuous and 500A intermittent loads up to 48V DC, making it suitable for heavy-duty marine and mobile power setups.
Protecting Sensitive Onboard Electronics
Modern marine vessels and off-grid setups rely heavily on microprocessors, sounders, and communication gear. When a single battery system is used, the heavy current draw required to crank an engine often causes a sudden voltage drop, causing electronics to reset or suffer long-term component degradation. By utilizing the Blue Sea DC Battery Management Switch Panel to physically separate these circuits, your auxiliary equipment receives clean, uninterrupted power from the house bank while the engine bank handles the high-inrush cranking loads.
Safe and Expandable System Architecture
Safety in marine electrical systems is paramount, especially when working around petrol engines. The included m-Series switches are fully ignition protected, offering peace of mind when mounting the panel in enclosed spaces or bilge areas. Compared to uncertified alternatives that may expose internal contacts to ambient fumes, this panel is engineered specifically for harsh marine conditions.
Please note that while this panel provides complete manual control and isolation, an Automatic Charging Relay (ACR) is not included. For users looking to automate the charging of both battery banks from a single alternator or charger, a compatible Blue Sea ACR can be integrated alongside this panel to create a fully automated charging and manual isolation system.
Ideal Applications
- Dual-battery setups in fibreglass, aluminium, and timber boats
- Petrol and diesel-powered marine vessels requiring ignition-protected components
- Custom 12V, 24V, and 48V DC off-grid canopies, RVs, and expedition vehicles
- Upgrading older single-switch or manual selector battery systems
Upgrade Your Battery Management
Ensure reliable engine starts and protect your valuable onboard electronics with a professional-grade isolation system. Integrate the Blue Sea DC Battery Management Switch Panel into your vessel or mobile setup today for dependable dual-battery control.
SKU: BS-8280B
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product type | DC battery management switch panel |
| Switch count | 3 |
| Included switches | m-Series ON-OFF battery switches |
| Battery control | Isolates engine and house circuits; allows independent battery control and emergency cross-connection between isolated battery banks |
| Engine-cranking protection | Protects electronics from sags and spikes caused by engine cranking |
| Ignition protection | Ignition protected; safe for installation aboard gasoline-powered boats |
| Automatic Charging Relay | An added ACR automates charging two battery banks |
| SKU: | BS-8280B |
| Model #: | BS-8280B |
| MPN: | BS-8280B |
| Package weight: | 1.86 kg |
| Package length: | 0.36 m |
| Package width: | 0.27 m |
| Package height: | 0.15 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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