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Blue Sea Systems 11003 Heavy Duty Battery Switch 3 Position with AFD 500A

Manufacturer

Picture for manufacturer Blue Sea Systems

Part Number

11003
13 reviews
Sale Price

$102.84

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Blue Sea Systems 11003 Heavy Duty Battery Switch is a robust 3-position marine battery selector designed for demanding electrical systems on boats and yachts. This ignition-protected switch allows you to select between two battery banks or combine them for parallel operation, with Alternator Field Disconnect (AFD) technology to protect your alternator when switching between battery positions.

Key Features:

  • Continuous duty rating of 500A with surge capacity up to 2750A for 10 seconds
  • AFD (Alternator Field Disconnect) prevents alternator damage during battery switching
  • Meets American Boat and Yacht Council (ABYC) requirements for marine battery switches
  • Ignition protected for safe installation on gasoline-powered vessels
  • M12 tin-plated copper studs resist corrosion and provide maximum conductivity
  • Accepts two 4/0 AWG (95mm) battery cables and 1/2" or M12 ring terminals
  • 7/8" (22.22mm) stud length accommodates multiple cable terminals
  • Tactile textured knob allows position identification by touch
  • Versatile mounting design for surface or rear panel installation

Switch Ratings:

  • Continuous: 500A
  • 5 Minutes: 700A
  • 60 Seconds: 1150A
  • 10 Seconds: 2750A
  • Maximum Voltage: 32V DC

This heavy-duty battery switch is ideal for marine applications requiring reliable battery management and protection for charging systems. The rugged construction and high amperage ratings make it suitable for larger vessels with substantial electrical loads.

Fast shipping on purchased item. Had in stock when other's did not.

Awesome place to shop. prices are great as well

Shipped fast and accuratly within a week.

verthank youy easy would like to have talked to a service rep.

Easy to navigate website.

Great

So far so good

awesome

Shipped and received in quick fashion. Item arrived as expected. Would definitely buy from again!

Easy and fast, can't beat that with a stick. It even arrived a day earlier than indicated. What else can I ask for. The install was really smooth and really did only take me about an hour. However, I did have access to a lift because a friend of mine owns

Great online experiance

Good

Best the price and shipping cost. Had a question about the product, the customer service was fast and helpful in getting my question answered

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