Prime Big Deals are live! View Deals
Search  for anything...
Blue Sea Systems

Blue Sea Systems m-Series On/Off Battery Switch, Red

  • Based on 2,424 reviews
Condition: New
Checking for the best price...
$27.86 Why this price?
Prime Big Deal · 54% off was $59.99

Buy Now, Pay Later

As low as $6 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Oct 9 – Oct 10
Order within 6 hours and 18 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: Red


Size: One Size


Style: On-Off w/Knob


Features

  • COMPACT DESIGN: Supports installation in tight spaces; helps fit the unit into limited mounting areas
  • MOUNTING OPTIONS: Offers surface, rear, or front mounting choices; allows flexible placement to suit various panel layouts
  • ON OFF SWITCH: Features a removable knob to help prevent accidental current flow in the DC system; supports safer handling during electrical system service
  • IGNITION PROTECTION: Suitable for installation in engine rooms of gasoline powered boats; helps meet location requirements for protected components
  • COPPER STUDS: One piece tin plated copper studs measure 7/8 in and accept multiple cables; provide a durable connection point
  • Luminous label for low light readability
  • Ignition protection and reistance to vapors
  • 3 possible mounting options
  • 32V max DC rating; 375 amps intermittent
  • 2.7 x 2.7 inches

Description

This compact battery switch is designed to manage a single battery connected to a single load group and supports flexible installation in a variety of panel or engine room layouts. Its small footprint and three available mounting options make it suitable for areas with limited space. The switch includes ignition protection for use in gasoline powered engine compartments, allowing safe placement in locations that require protected components. The tactile surface of the switch face and the removable knob help support operation in low light conditions and contribute to preventing unintended power flow during electrical system service. Tin plated copper terminal studs are built as a single piece and provide sufficient length for connecting multiple cables while supporting secure fastening. With its combination of protective features, connection capacity, and adaptable mounting options, this switch offers a practical solution for managing basic battery control needs in marine electrical systems.

Operation Mode: manual


Current Rating: 300 A


Operating Voltage: 48 volts


Contact Type: Normally Open


Connector Type: Screw Terminals


Brand: Blue Sea Systems


Switch Type: Rotary


Terminal: Stud


Material: Marine Grade Metals, Polycarbonate


Item dimensions L x W x H: 3 x 4 x 6 inches


Operation Mode: manual


Current Rating: 300 A


Operating Voltage: 48 volts


Contact Type: Normally Open


Connector Type: Screw Terminals


Switch Type: Rotary


Terminal: Stud


Circuit Type: 2-way


Mounting Type: Surface, front panel, or rear panel mounting


Actuator Type: Push Button


Number of Positions: 2


Upper Temperature Rating: 85 °C


Controller Type: Ring


Control Method: Touch


Connectivity Protocol: X-10


Wattage: 14400 watts


Compatible with Vehicle Type: Boat


Control Type: ON/OFF


Compatible Devices: Marine devices, DC-powered devices (up to 48V, 300A), construction equipment, emergency equipment


Color: Red


Item Dimensions: 3 x 4 x 6 inches


Unit Count: 1 Count


Number of Items: 1


Material Type: Marine Grade Metals, Polycarbonate


Contact Material: Tin Plated Copper


International Protection Rating: IP66


Specification Met: Bss


Brand Name: Blue Sea Systems


Model: 6006


Global Trade Identification Number: 60


Manufacturer: Blue Sea Systems


Warranty Description: Lifetime


UPC: 632085060060


Included Components: Battery Switch


Item Type Name: boating-electrical-equipment


Item Weight: 10.4 ounces


Part Number: 6006


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 9 – Oct 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great disconnect!
Used this as a disconnect for my jeeps 12k badlands winch and it works great! Badlands uses a thermal disconnect but it was rusted and needed to be replaced. I could not find a direction replacement from badlands so after some homework i found this. Mounted it next to my battery up out of the way and so far so good. Its nice and strong, installation was relatively simple. I would definitely recommend this if you need to replace or upgrade your winch disconnect. ... show more
Reviewed in the United States on August 5, 2026 by Amazon Customer
    • Rock-Solid, High-Quality Battery Switch You Can Trust
Color: Red Size: One Size Style: On-Off w/Knob
The Blue Sea Systems 6006 m-Series ON/OFF Battery Isolator Switch is exactly what you want in a critical electrical component: simple, reliable, and built to last. The build quality is outstanding — solid terminals, smooth but positive switching action, and materials that clearly hold up in a marine environment. Installation is straightforward, and the compact m-Series design makes it easy to fit even in tight battery compartments. What really stands out is the confidence it gives you. When it’s OFF, it’s truly OFF. When it’s ON, you know your system is connected without voltage drop or fuss. It handles high current loads effortlessly and stays cool under use. Typical Blue Sea attention to detail shows through: clear labeling, removable knob for safety, and excellent corrosion resistance. This is one of those products you install once and then never think about again — which is exactly what you want for a battery isolator. If you’re upgrading or replacing a battery switch, don’t hesitate. The 6006 is worth every penny and sets the standard for marine electrical hardware. Highly recommende ... show more
Reviewed in the United States on December 25, 2025 by TWG
    • Feels High Quality and Works Well
Color: Red Size: One Size Style: On-Off w/Knob
This battery switch feels solid and well made. It has a high-quality feel and does exactly what it’s supposed to do. Installation and operation were straightforward, and I’ve had no issues with it.
Reviewed in the United States on August 18, 2026 by Edwin Salas
    • Excellent product.
Color: Red Size: One Size Style: On-Off w/Knob
Reliable as it should be
Reviewed in the United States on August 7, 2026 by Amazon Customer
    • Nice quality, works well.
Color: Red Size: One Size Style: On-Off w/Knob
Nice gear for 12 and 24VDC lithium systems. The Good: Easy install. Easy clean mounting. Clean, fast connect and disconnect when rotating. Runs reasonably cool (hardly over ambient temps). The Bad: I got nothing, they’re great. ———— However… if you use them OVER the rated voltage use caution. It’s not rated for ‘nominal 48VDC’ (>=52VDC in the Li world). That caused some issues with the mechanism over time. Never failed to make or break a connection. However, arc suppression is clearly visible during high current inrush and disconnect events. One switch began to run a bit warmer after dozen or two of those high current on/off actions. (Yes, I confirmed it was properly torqued with good lugs.) ——— Overall: Great switch. They have operated flawlessly on my 12VDC and 24VDC circuits for well over a decade. Don’t be complacent about the operating voltage rating! (It’s easy to talk yourself into a ‘nominal 48V’ system.) ... show more
Reviewed in the United States on September 4, 2025 by Neil F.
    • 5 stars
Color: Red Size: One Size Style: On-Off w/Knob
Made heavy duty expensive but I guess it has to be if it’s made good
Reviewed in the United States on August 30, 2026 by Kevin Whited
    • Best quality I have found
Color: Black Size: One Size Style: On-Off w/Knob
Great support and instructions available, built very well and exceeds my expectation of quality. Easy to wire and mount, just wish it came with mounting hardware like screws or nuts and bolts. Best value for my money with such high standards of quality in a switch that is used very frequently. Really makes my battery life last with the ability to use as a disconnect switch. ... show more
Reviewed in the United States on September 2, 2025 by Jack Bronski
    • Great product
Color: Red Size: One Size Style: On-Off w/Knob
Fast shipping
Reviewed in the United States on August 16, 2026 by Tim Kirby

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...