Blue Sea Systems Battery disconnect switch with M selector

Blue Sea Systems M-Series Battery Selector Switch – Ultimate Control and Safety for Your Electrical System

Gain complete and reliable control over your vessel´s or vehicle´s power with the Blue Sea Systems M-Series Battery Disconnect Switch. Engineered for the demanding conditions of marine and heavy-duty vehicle environments, this selector switch is the cornerstone of a safe and efficient electrical system. It allows you to expertly manage your battery banks, isolating them for maintenance, preventing parasitic drain during storage, and selecting between power sources to ensure you always have the power you need. Ideal for boats, RVs, emergency vehicles, and off-grid power systems, this switch provides peace of mind through superior design and robust construction.

The M-Series switch is designed to protect your investment. By providing a simple, positive-action method to disconnect batteries from your electrical connections, it eliminates the risk of battery drain from clocks, radios, and other small loads when your vessel or vehicle is not in use. Furthermore, it serves as a critical safety device, allowing for the immediate shutdown of the entire electrical system in an emergency.

Key Benefits:

* Total Power Management: Effortlessly switch between battery banks or combine them for emergency starting. The ON/OFF function provides a definitive way to isolate all circuits, ensuring no power is drawn during storage or maintenance.
* Enhanced Safety: Ignition protected and certified to UL 1107 standards, this switch is safe for installation aboard gasoline-powered boats and in enclosed spaces. It provides a crucial layer of protection for your entire electrical infrastructure.
* Unmatched Durability: Built to withstand the harsh marine environment, the switch features a rugged, reinforced polycarbonate case and tin-plated copper studs. This construction resists corrosion, maximizes conductivity, and ensures a long, reliable service life.
* Flexible and Secure Installation: The compact design allows for surface or rear-panel mounting, providing versatility to fit in tight spaces. The case design allows for multiple cable entry points, and the one-piece terminal stud design never loosens over time, guaranteeing a secure connection.

Main Features:

* A tactile, ergonomic selector knob that provides a clear indication of the switch position, even in low light.
* IP66 waterproof rating, protecting against powerful water jets from any direction.
* Tin-plated copper studs offer maximum electrical conductivity and high resistance to corrosion.
* Make-before-break contact design allows for switching between battery banks without interrupting power to your electronics (on models with 1/2/BOTH functionality).
* Removable side plates on four sides provide unobstructed access for heavy-gauge battery cables.

Technical Specifications:

* Switch Type: M-Series Selector Battery Switch
* Color: Red
* Cranking Rating (30 sec): 900A DC
* Intermittent Rating (5 min): 500A DC
* Continuous Rating: 300A DC
* Maximum Voltage: 48V DC
* Terminal Stud Material: Tin-Plated Copper
* Terminal Stud Size: 3/8" - 16 (M10)
* Terminal Stud Torque: 120 in-lb (13.56 Nm)
* Cable Size to Meet Ratings: 4/0 AWG (95mm²)
* Mounting Holes: Accepts 10 (M5) Screws
* Certifications: CE Marked, Meets ABYC Requirements, UL Listed - UL 1107 for electric power switches