Skip to content Skip to navigation menu

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

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

REVIEW SNAPSHOT®

by PowerReviews
PerkoBattery Switches
 
4.5

(based on 15 reviews)

Ratings Distribution

  • 5 Stars

     

    (10)

  • 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 (8)
  • Good power output (5)
  • 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 (7)

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 15 customers

Sort by

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

I would recommend and buy this product again and again.

By vic the fixer

from va beach, va

Verified Buyer

Pros

  • Easy To Install
  • Good Power Output

Cons

    Best Uses

      Comments about Battery Switches:

      Great all around product. I chose this product over the other choices due to the price, features, and the perko brand.

      • Was this a gift?:
      • No
       
      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

                                      Displaying reviews 1-10

                                      Back to top

                                      Previous | Next »

                                      PRODUCT QUESTIONS
                                      1 (800) 262-8464