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Dual Battery Selector Switch with Knob, 250 Amp FO-3511-M2

Five Oceans

Product image 1Dual Battery Selector Switch with Knob, 250 Amp FO-3511-M2
Product image 2Dual Battery Selector Switch with Knob, 250 Amp FO-3511-M2
Product image 3Dual Battery Selector Switch with Knob, 250 Amp FO-3511-M2
Product image 4Dual Battery Selector Switch with Knob, 250 Amp FO-3511-M2
Product image 5Dual Battery Selector Switch with Knob, 250 Amp FO-3511-M2
Product image 6Dual Battery Selector Switch with Knob, 250 Amp FO-3511-M2

Regular price $31.99

PRODUCT # 3511-M2

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24/7 Customer Support
Same Day Dispatch (Order by 2pm)
Product Video:

Five Oceans designed a lot of unique features into this selector switch. Removable side plates on three sides allow for easy access cables. This Dual Battery Switch has three mounting positions, front, rear or surface mounted.
It can be used with 32 Volts DC max systems to isolate and secure the electrical system.
Twist knob style switch, manufactured with a durable, non-corrosive, ABS plastic housing to resist the harsh marine conditions.


Voltage: 12-24 Volts
Rated: 250 Amp Continuous duty at 12V, 350 Amp intermittent
Flush Mount Dimension: 2-13/16 x 2-13/16 inches
Positions: 1-2-Both-Off
Vapor Proof & ignition protected
Quantity: Two (2)



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1. One (1) Year Warranty

We take enjoyment in the products we make and guarantee the buyer (“you”) that all Five Oceans products are ready to handle the extreme conditions of the open sea or terrain. However, we also know things can happen that's why we've got you covered for a year.

Make sure to stop by an register your product to receive the benefits of our warranty. A Crew Member on our customer service team will respond back within 2-3 business days following a review of your request. To download the terms of our warranty simply click here.

To register your purchase click here.

2. Same Day Shipping 

With us there is no need to wait, you'll get your product shipped out the same day as long as you place it before 2 pm. Everything placed after 2 pm will be shipped the next business day.

3. Safe with us

We always maintains a large stock of products, giving you the advantage of always finding what you need to live out your passion. If by any chance it's out of stock, make sure to click the "Notify Me" button so you can be the first to get it.


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You are able to return an item as long as it falls under the 30-day return policy. Further details can be found under the shipping & returns section. Important to note international sales are excluded and items marked Final Sale. Restocking fees may apply, check out return policy for more details. 


We are truly sorry but no exchanges allowed, you must return the item for a refund in order to purchase a different item. Return fees may apply.

When will my order ship?

All orders are shipped on the same day if placed before 2 pm (excluding weekends, holidays, or if we're sailing "smiles" ). You can also find more details on our shipping & returns section. 

Do you ship internationally (outside USA)?

At the moment we are not processing international orders. Please contact us and we will let you know how and where to order if you want to ship to an international location. 

How do I contact someone?

We can be reached through or simply . Please allow up to 24 - 48 hours for a customer service representative to respond. Customer service hours are Monday - Friday: 9 am - 5 pm EST

Store Pickup?

You sure can pick up in our store. Will be waiting! 

We are located in South Florida. 


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