Blue Sea 12V/24V 350A Triple Battery Bank Management Panel
Blue Sea 12V/24V 350A Triple Battery Bank Management Panel
Twin Engine 12V/24V DC System with 2x 5511e Switches & 100A Breaker

DESCRIPTION
Centralised Marine Power Distribution for Twin Engine Configurations
Managing power across multiple battery banks on a twin-engine vessel requires a dependable, logically organised system. This 12V and 24V DC battery management panel simplifies complex electrical setups by combining battery switching, high-ampere load protection, and dedicated 24-hour circuit protection into a single, cohesive unit. Engineered specifically for twin-engine marine applications, it isolates your engine starting circuits from the house circuit, ensuring your essential navigation and onboard electronics remain unaffected by voltage sags and spikes during engine cranking.
Independent Control and Emergency Cross-Connect
At the core of this panel are two e-Series Dual Circuit Plus Battery Switches (PN 5511e). Unlike standard selector switches that can accidentally drain both banks if left in the wrong position, the Dual Circuit Plus design allows you to switch both the engine and house battery banks simultaneously with a single turn, while keeping the circuits completely isolated. In the event of a depleted starting battery, the switches feature an emergency cross-connect (Combine Batteries) function, allowing you to link the isolated battery banks to get your engines running safely.
- Twin Engine Design: Tailored to manage two engine starting banks and one dedicated house battery bank.
- High-Ampere Protection: Includes a 100A C-Series flat rocker circuit breaker for primary main DC load protection, plus blank expansion slots for additional circuit breakers.
- 24-Hour Circuit Protection: Equipped with four 15A push-button reset-only circuit breakers for constant-power circuits like bilge pumps, alarms, and vessel monitoring.
- Electronics Safeguard: Isolates the house load from engine cranking draws (up to 1000A for 10 seconds), preventing sensitive chartplotters and radios from resetting.
- Ignition Protected: Tested and safe for installation aboard petrol-powered (gasoline) and diesel boats, reducing the risk of igniting surrounding flammable vapours.
- Ready for Automation: Easily integrates with two Automatic Charging Relays (ACRs, sold separately) to fully automate the charging of all three battery banks without manual intervention.
- Customisable Labelling: Supplied with square format and 24-hour round labels, plus individual status LEDs for clear visual circuit monitoring.
Streamlined Installation and Expansion
Constructed for harsh marine environments, this panel consolidates what would typically be a cluttered array of individual switches, fuse blocks, and breakers into one clean, flush-mounted interface. The inclusion of pre-installed 15A push-button breakers provides immediate connections for critical 24-hour circuits that must remain active even when the main battery switches are turned off. Additionally, built-in expansion slots give marine electricians and boat builders the flexibility to add extra circuit breakers as the vessel's electrical demands grow.
Upgrade Your Vessel's Electrical System
Eliminate the guesswork of managing multiple marine battery banks and protect your onboard electronics from damaging voltage drops. Order your battery bank management panel today to build a safer, more reliable marine power system for your twin-engine boat.
SKU: BS-8693B
SPECIFICATIONS
Specifications
| Part Number | 8693 |
|---|---|
| Positions | 11 |
| Nominal Voltage | 12 V DC; 24 V DC |
| Maximum Voltage | 32 V DC |
| Continuous Rating | 350 A |
| Intermittent Rating | 525 A (5 min) |
| Cranking Rating 10 sec | 1000 A |
| Cranking Rating 1 min | 750 A |
| Height | 8.00 in (203.2 mm) |
| Width | 10.50 in (266.7 mm) |
| Depth | 3.50 in (88.9 mm) |
| Weight | 4.42 lb (2 kg) |
| Included Battery Switches | 2 × 5511e e-Series Dual Circuit Plus™ Battery Switch |
| Included Push Button Circuit Breakers | 4 × 7056 Push Button Reset Only Quick Connect Circuit Breaker - 15 A |
| Included Flat Rocker Circuit Breaker | 1 × 7549 C-Series Flat Rocker Circuit Breaker - Single Pole 100 A |
| Regulatory Specifications | Ignition Protected |
| SKU: | BS-8693B |
| Package weight: | 2.4 kg |
| Package length: | 0.11 m |
| Package width: | 0.33 m |
| Package height: | 0.25 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.







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