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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
 
4.4

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (7)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

67%

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 (5)

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 12 customers

Sort by

Displaying reviews 1-10

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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

                              (4 of 5 customers found this review helpful)

                               
                              2.0

                              Easy to Install - Impossible to Maintain

                              By ChrisM

                              from Orlando, FL

                              About Me Quality Oriented

                              Pros

                              • Easy to install
                              • Easy to use

                              Cons

                              • Cannot maintain
                              • Cannot repair

                              Best Uses

                              • Boats

                              Comments about Battery Switches:

                              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.

                              • Primary use:
                              • Business

                              (0 of 2 customers found this review helpful)

                               
                              4.0

                              Solid Switch

                              By LowTech

                              from Mill Creek, WA

                              About Me Value Oriented

                              Verified Buyer

                              Pros

                              • Good Value
                              • Reliable Performance

                              Cons

                                Best Uses

                                  Comments about Battery Switches:

                                  Dual Battery Switch

                                  • Primary use:
                                  • Personal

                                  Displaying reviews 1-10

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