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PERKO Battery Switches

Interrupts the field current to protect non-unitized alternators from damage if turned off with the engine running

Rated for 250A continuous/360A intermittent, with copper contacts and brass terminals. We strongly recommend field disconnect battery switches (or fail safe diodes) to eliminate the chance of alternator damage due to inadvertent switching. Surface-mount. Marine UL-listed.

  • Continuous Amps: 250A
  • Max Momentary Rating: 360A
  • Switch Material: Polycarbonate
  • Terminal Material/Size: Brass, 5/16"
  • Switch Dimensions: 5-1/4"dia. x 2-5/8"D
  • Approvals: UL Listed, CE
  • Warranty: Five years
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Off/1/All/2 Switch, No Key Lock, 2 Batteries, No Alt. Field Disc. 281469 8501DP
In stock online.

$54.99

Off/1/All/2 Switch with Key Lock, 2 Batteries, No Alt. Field Disc. 115081 8502DP
In stock online.

$92.99

Off/1/All/2 Switch, No Key Lock, 2 Batteries, Alt. Field Disc. 281477 8503DP
In stock online.

$72.99

On/Off Switch, No Key Lock, 1 Battery, No Alt. Field Disc. 281501 9601DP
In stock online.

$67.99

Product Description

Interrupts the field current to protect non-unitized alternators from damage if turned off with the engine running

Rated for 250A continuous/360A intermittent, with copper contacts and brass terminals. We strongly recommend field disconnect battery switches (or fail safe diodes) to eliminate the chance of alternator damage due to inadvertent switching. Surface-mount. Marine UL-listed.

  • Continuous Amps: 250A
  • Max Momentary Rating: 360A
  • Switch Material: Polycarbonate
  • Terminal Material/Size: Brass, 5/16"
  • Switch Dimensions: 5-1/4"dia. x 2-5/8"D
  • Approvals: UL Listed, CE
  • Warranty: Five years

Specs

West Advisor

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REVIEW SNAPSHOT®

by PowerReviews
PerkoBattery Switches
 
4.5

(based on 14 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

93%

of respondents would recommend this to a friend.

Pros

  • Easy to install (7)
  • Good power output (4)
  • Reliable (4)
  • Compact (3)
  • Good value (3)

Cons

No Cons

Best Uses

No Best Uses
    • Reviewer Profile:
    • Practical (4), Quality oriented (4)
    • Primary use:
    • Personal (5)
    • Was this a gift?:
    • No (6)

Most Liked Positive Review

 

Great product. Great price

Easy to install! Made boating so much easier
Now I have all the switches in one place rather than trying to remember going to several different places.

Easy to install! Made boating so much easier
Now I have all the switches in one place rather than trying to remember going to several different places.

VS

Most Liked Negative Review

 

Easy to Install - Impossible to Maintain

These switches are easy to install and use but if the contacts inside corrode, like they do when used in a boat, you cannot fix it. The have the back cover pop-riveted on...Read complete review

These switches are easy to install and use but if the contacts inside corrode, like they do when used in a boat, you cannot fix it. The have the back cover pop-riveted on so that you cannot access the contacts and spray them with anti corrosion spray.

Reviewed by 14 customers

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Displaying reviews 1-10

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5.0

This switch does what it was built for

By None

from CHICAGO ILLINOIS

About Me Gearhead

Verified Buyer

Pros

    Cons

      Best Uses

        Comments about Battery Switches:

        A vey good switch for the money.

        • Was this a gift?:
        • No
         
        5.0

        Good Switch

        By rclusman

        from Miami, Florida

        Verified Buyer

        Comments about Battery Switches:

        I have had serveral of these switches over the years. They last a long time if you do a little sealing work when installed. Simple bu effective design.

         
        5.0

        Life saver

        By Hunter

        from Copiague New York

        About Me Practical

        Verified Buyer

        Pros

        • Easy To Install

        Cons

          Best Uses

            Comments about Battery Switches:

            Was in need of a new battery switch. At westmarine the staff was excellent in helping me find what I need to get my boat back up and running. Back to fishing tight lines be safe on the water

            • Was this a gift?:
            • No
             
            5.0

            This battery switch was very easy to install

            By Hunter

            from Copiague

            About Me Practical

            Verified Buyer

            Pros

            • Easy To Install

            Cons

              Best Uses

                Comments about Battery Switches:

                West marine was very helpful in selecting this product

                • Was this a gift?:
                • No
                 
                5.0

                Good product

                By Gene

                from Cape Carteret

                About Me Auto Professional

                Verified Buyer

                Pros

                • Compact
                • Easy To Install
                • Good Power Output

                Cons

                  Best Uses

                    Comments about Battery Switches:

                    Product was easy to use.

                    • Was this a gift?:
                    • No
                     
                    4.0

                    INSTALLATION TOOK APRX 15 MINUTES W PROPER TOOLS

                    By FISHERMAN

                    from LAKE ONTARIO

                    Verified Buyer

                    Pros

                    • Easy To Install

                    Cons

                      Best Uses

                        Comments about Battery Switches:

                        WENT IN FAIRLY EASY
                        ONLY TIME WILL TELL HOW IT HOLDS UP

                        • Was this a gift?:
                        • No
                         
                        5.0

                        Great product. Great price

                        By Jeff

                        from Essexville Michigan

                        About Me Boat Enthsiast, Fishermsn, Practical

                        Verified Buyer

                        Pros

                        • Compact
                        • Easy To Install
                        • Good Power Output
                        • Simple To Install

                        Cons

                          Best Uses

                          • Boat

                          Comments about Battery Switches:

                          Easy to install! Made boating so much easier
                          Now I have all the switches in one place rather than trying to remember going to several different places.

                          • Was this a gift?:
                          • No

                          (1 of 1 customers found this review helpful)

                           
                          4.0

                          Basic Perko Battery Switch is the go to!

                          By pablocruisin'

                          from San Diego

                          About Me Practical

                          Verified Reviewer

                          Pros

                          • Compact
                          • Easy To Install

                          Cons

                            Best Uses

                              Comments about Perko Battery Switches:

                              I replaced my old Perko battery switch after 15 years of use with a new one. Fit the old holes, does the job, easy to connect, works great. Yeah!

                              (1 of 1 customers found this review helpful)

                               
                              4.0

                              necessity

                              By levvydude

                              from citrus heights

                              About Me Quality Oriented

                              Verified Buyer

                              Pros

                              • Good Value

                              Cons

                                Best Uses

                                  Comments about Battery Switches:

                                  product is ok but it lacks the durability of how well they were once made

                                  • Primary use:
                                  • Personal

                                  (1 of 1 customers found this review helpful)

                                   
                                  5.0

                                  Battery Switch

                                  By Wyatt

                                  from San Antonio, Tx.

                                  About Me Quality Oriented

                                  Verified Buyer

                                  Pros

                                  • Good Value
                                  • Long Lasting
                                  • Powerful
                                  • Reliable Performance

                                  Cons

                                    Best Uses

                                    • Emergency Equipment

                                    Comments about Battery Switches:

                                    I have been around boats for many years, This is a good product. If your adding a second battery this is a simple and effective solution.

                                    • Primary use:
                                    • Personal

                                    Displaying reviews 1-10

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