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Blue Sea 300A Red Mini m-Series 4 Position (OFF/1/2/1+2) Battery Selector Switch
Blue Sea 300A Red Mini m-Series 4 Position (OFF/1/2/1+2) Battery Selector Switch
Ignition Protected - Switch 2 Banks - 300A Continuous Rating
Regular price
$80.00
Availability:
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DESCRIPTION
Compact Dual Battery Management for Marine and RV Systems
The Blue Sea m-Series Battery Selector Switch is the industry standard for managing dual battery banks in boats, caravans, and 4WDs. Designed to provide safe and reliable switching between a starting battery and a house bank, this compact unit solves the common problem of accidental starting battery depletion. By isolating your electrical loads, you ensure that your engine always has the power it needs to crank, while your accessories run independently.
Engineered for the harsh marine environment, this switch features a robust construction suitable for systems up to 32V DC. Whether you are upgrading a tinny, fitting out a camper trailer, or replacing an old isolator in an engine room, the m-Series delivers professional-grade performance in a footprint that fits almost anywhere.
Versatile 4-Position Switching
This selector switch offers four distinct positions to give you complete control over your power management:
- OFF: Completely disconnects all batteries from the loads for storage or maintenance.
- 1: Connects Battery Bank 1 (typically the starting battery) to the loads.
- 2: Connects Battery Bank 2 (typically the house battery) to the loads.
- 1+2 (Combine): Parallels both battery banks for emergency starting if one battery is low.
Crucially, the unit utilises a make-before-break contact design. This allows you to switch between battery banks (e.g., from 1 to 2) while the engine is running or electronics are active without interrupting power. This prevents sensitive navigation equipment, radios, or engine management systems from resetting during operation.
Built for Safety and Durability
Safety is paramount in electrical installations, particularly where fuel fumes may be present. The Blue Sea m-Series is ignition protected, making it safe for installation in the engine rooms of gasoline-powered boats. The case design allows for versatile mounting options—surface, front panel, or rear panel—ensuring a clean finish in any setup.
The switch is built with tinned copper studs for maximum conductivity and corrosion resistance. The 3/8"-16 (Approx. M10) terminal studs are designed to accept heavy-duty ring terminals and handle the torque required for a secure vibration-resistant connection. With a 300A continuous rating, it easily handles the demands of most alternators and onboard appliances found in recreational vehicles and vessels.
Key Features
- 300A Continuous Rating: Handles high-current demands with a 500A intermittent rating (5 min) and 900A cranking (30 sec).
- Ignition Protected: Safe for installation aboard gasoline-powered boats.
- Make-Before-Break: Switch battery banks without power loss to electronics.
- Heavy-Duty Terminals: 3/8"-16 (Approx. M10) studs accept substantial cabling, accommodating up to 4/0 AWG (approx. 120mm²) lugs.
- Versatile Mounting: Fits standard industry cutouts for easy retrofitting.
Why Choose the m-Series?
Generic switches often fail under the stress of saltwater environments or high-vibration off-road use. The Blue Sea m-Series is tested to ensure longevity and reliability. Its tactile knob provides positive feedback, so you know exactly which position is engaged, even in low-light conditions. For anyone building a dual-battery system, this switch offers the peace of mind that your power distribution is secure, efficient, and ready for adventure.
Secure Your Power System Today
Upgrade your battery management with the reliability of Blue Sea Systems. Whether for a weekend fishing trip or a lap around Australia, ensure your batteries are isolated and ready when you need them.
SKU: BS-6007B
SPECIFICATIONS
Specifications
| Switch Type | Selector 4 Position |
|---|---|
| Color | Red |
| Switch Positions | 4 |
| Battery Combine | Yes |
| Alternator Field Disconnect | No |
| Maximum Voltage | 32V DC |
| Stud Size |
3/8" (approx. 9.53 mm; reference only) |
| Terminal Stud Torque |
120 in-lb (13.56 N·m) (approx. 10.0 ft-lb; reference only) |
| Continuous Rating | 300A |
| Intermittent Rating | 500A (5 min) |
| Starting Rating (30 sec) | 900A |
| Battery Inputs | 2 |
| Cable Clearance For 4/0 AWG Cables |
1.12in (28.45 mm) (reference only) |
| Cable Size to Meet Ratings |
4/0 AWG (120mm²) (AWG vs mm² is an approximate equivalence; reference only) |
| Mounting Holes |
Accept #10 Screw (approx. #10 major diameter 4.83 mm; reference only) |
| Stud Material | Tinned Copper |
| Stud Torque |
120 in-lb (13.56 N·m) (approx. 10.0 ft-lb; reference only) |
| Switching Rating | 25A |
| Terminal Stud Size |
3/8" - 16 (M10) (3/8" ≈ 9.53 mm major diameter; M10 is 10 mm; 16 TPI ≈ 1.59 mm pitch; reference only) |
| Weight (min / max) |
0.77–0.77 lb (0.35–0.35 kg) (approx. 350 g; reference only) |
| SKU: | BS-6007B |
| Model #: | BS-6007B |
| MPN: | BS-6007B |
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.
