SKU: 83499297281

Blue Sea 350A Red e-Series Dual Circuit Battery Switch

Sale price$90.82 Regular price$100.91
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Blue Sea 350A Red e-Series Dual Circuit Battery SwitchSimplify Your Dual Battery Management with the e Series Dual Circuit Switch Managing multiple battery banks in marine and automotive applications often involves complex wiring and multiple isolators. The Blue Sea Systems e Series Dual Circuit Battery Switch solves this problem by allowing you to switch two isolated battery banks simultaneously with a single turn of the knob. This innovative design replaces the need for two separate switches,

Simplify Your Dual Battery Management with the e-Series Dual Circuit Switch

Managing multiple battery banks in marine and automotive applications often involves complex wiring and multiple isolators. The Blue Sea Systems e-Series Dual Circuit Battery Switch solves this problem by allowing you to switch two isolated battery banks simultaneously with a single turn of the knob. This innovative design replaces the need for two separate switches, streamlining your dashboard or engine room layout while maintaining critical circuit separation.

Simultaneous Switching for Isolated Banks

Designed for dual-battery systems—typically a starting battery and a house battery—this switch ensures that both circuits are energized or disconnected at the same time. Crucially, it maintains isolation between the two banks. This means your sensitive electronics on the house circuit remain powered without risking the starting battery's charge, and engine starting spikes are kept away from your accessories. It offers a straightforward ON/OFF mechanism that simplifies operation for boat owners and vehicle operators.

Ignition Protected and Marine-Grade Durability

Safety is paramount in enclosed engine spaces and fuel lockers. This unit is ignition protected, making it safe for installation aboard gasoline-powered boats or vehicles where fuel vapours may be present. The case design allows for versatile mounting options, including surface or rear panel mounting, ensuring a clean installation regardless of your setup constraints.

High-Current Handling and robust Connections

Built to handle significant electrical loads, this switch features a continuous rating of 350A and a cranking rating of 700A per circuit (30 seconds). It is engineered with tinned copper studs for maximum conductivity and corrosion resistance, essential for harsh saltwater environments.

The terminals are designed to accept large cables required for high-current applications:

  • Terminal Stud Size: 3/8"-16 (Approx. M10)
  • Cable Compatibility: Accepts heavy-duty lugs for cable sizes up to 4/0 AWG (Approx. 120mm²)
  • Clearance: Generous 1.10" (27.94 mm) clearance for cable routing

*Note: Typical de-rating factors apply based on ambient temperature and cable sizing.

Versatile Voltage Compatibility

While often searched for as a 12V dual battery switch, this unit boasts a maximum voltage rating of 32V DC. This makes it perfectly suitable for both 12V and 24V systems commonly found in larger vessels, trucks, and off-grid 4WD setups. Whether you are refitting a yacht or upgrading a touring vehicle, this switch provides the reliability Blue Sea Systems is known for.

Key Features

  • Simultaneous Control: Switches two isolated battery banks with one simple knob.
  • High Amperage Rating: 350A continuous rating suitable for heavy loads.
  • Safety Certified: Ignition protected for safe use around fuel sources.
  • Flexible Mounting: Case design supports surface or rear panel installation.
  • Corrosion Resistant: Tinned copper studs ensure long-term electrical integrity.

Upgrade Your Power System Reliability

Ensure your battery system is safe, organized, and easy to operate. Install the Blue Sea e-Series Dual Circuit Switch today for a cleaner, more efficient power distribution setup.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 83499297281

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Amazon Customer
West Palm Beach, US
★★★★★ 4
Nice Umbrella for the Price
Size: 9ft, Color: Red
Truly surprised at the quality of this umbrella. Great deal for the price. I did see some reviews prior to buying that there were issues with the tilting mechanism/crank so I am giving it a 4 until I have it for more than a few days to see how it all works out.
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Reviewed in the United States on April 27, 2026
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Wild Roots Farmstead
West Palm Beach, US
★★★★★ 5
Honestly impressed would recommend
Size: 9ft, Color: Beige, Size: 9ft, Color: Beige
I’m honestly really impressed with this patio umbrella! It’s lightweight enough that it was easy to move and set up, but it still feels sturdy and stable once in place. The fabric material feels much nicer than the cheap plastic-like material some outdoor umbrellas use — it looks clean, durable, and gives really good shade. The color is beautiful and works perfectly with outdoor spaces without looking harsh or too bright. It opens smoothly, provides a large amount of coverage, and has held up great in the sun and wind so far. Definitely a thumbs up from me — great quality for the price and makes the whole patio area feel more relaxing and put together! ☀️👍
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Reviewed in the United States on May 9, 2026
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ShopMom
Pawtucket, US
★★★★★ 5
Brightens up the whole patio!
Size: 9ft, Color: Apple Green
I am so happy with this umbrella! The "Apple Green" color is gorgeous—it’s super vibrant and really makes my backyard feel more tropical and fun. The crank is smooth and easy to use, so I don’t have to struggle to get it open, and the push-button tilt is a total lifesaver when the sun starts to dip in the afternoon. It feels much sturdier than the one I replaced; the ribs seem solid and it hasn't budged during our usual afternoon breezes. It provides a ton of shade for our table, and you can tell the fabric is thick enough to actually block the heat. If you want a pop of color and a reliable umbrella that doesn't cost a fortune, this one is perfect!
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Reviewed in the United States on April 7, 2026
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Debbie Caperton
Draper, US
★★★★★ 5
High quality. Umbrella crank works smoothly. Love it!
Size: 9ft, Color: Peacock Blue, Size: 9ft, Color: Peacock Blue
This umbrella and rug, both from Amazon, look beautiful on my deck! I'm thrilled with them both! My deck is my favorite happy place! The colors are very impressive. Great price 👍
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Reviewed in the United States on May 23, 2026
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Candace Harding
Birmingham, US
★★★★★ 4
Mostly well made…
Size: 9ft, Color: Dark Blue, Size: 9ft, Color: Dark Blue
The umbrella itself is made out of great fabric and the color is accurate to the photo. However, we’ve had it for less than a month and the piece that controls the angle of the umbrella has already broken off. It still works, but will always be at an angle now.
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Reviewed in the United States on April 12, 2026

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