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Security Alarm Contact Switches

Magnetic Switch, Contact Switches

Often the first line of defense in a security system, the magnetic door switch is a mechanism recessed in door and window frames. It’s made to trigger alarm and surveillance systems when unauthorized intrusion is detected. Our magnetic contact switches utilize the power of rare earth magnets to create an open or closed loop circuit.

The recessed magnetic switch is most common in residential purposes as it’s concealed and mounted within the materials of the structure. The recessed magnetic door switch is made with the same magnetic reed switch used for surface-mount alarm contacts. Instead of a rectangular housing, recessed alarm contacts have a cylindrical case. This makes them easy to install by simply drilling a hole. The magnets are also made using the same type of round housing.

How a Magnetic Reed Switch Works

The magnetic reed switch is typically installed on the door frame and the magnet that activates the switch is typically installed on the door. Inside the magnetic reed switch, a thin piece of steel – a steel ‘reed’, if you will – is held in position by the attraction of the magnet when the door is closed. When the door is opened, the magnet is taken away from the switch and the spring tension of the “reed” causes it to spring back against the other contact, changing the state of the switch.

Closed Loop, Open Loop Vs. SPDT

Most magnetic reed switches are closed loop, or the switch is closed in its default state. When a magnetic reed switch is designed so that the magnet is close to the switch in its default state, it is considered an open loop style. Another variation is the SPDT, or Single Pole Double Throw magnetic reed switch.

It has both open and closed loops incorporated into its design. Finally, the DPDT, or Double Pole Double Throw has two SPDT reeds in the same contact switch housing, with each having its own common open and closed side.

A popular magnetic switch set Primus Cable offers is the Reed Switch Set, Closed Loop, Steel Door Recessed 3/4" Magnetic Switch w/ Screw Terminals - 10 Pack. This closed loop magnetic reed switch set is 3/4” recessed with screw terminals. It comes hermetically sealed with plated contacts to resist sticking or freezing. It is available in 1/2” standard gap and 3/4"+ wide gap versions. Its short length and composition of PC board type terminals makes installation quick without soldering.

For residential and commercial security applications requiring a discreet surface mount alarm contact, the Reed Switch Set, Closed Loop, Flanged Miniature Surface Mount Magnetic Switch w/ Cable Leads - 10 Pack is just the solution. This miniature magnetic switch set incorporates into most décor without being noticeable.

It is available in standard gap up to 1”, and wide gap up to 1 1/4” with 22AWG cable leads. It is a closed loop circuit configuration with plated contacts to resist sticking or freezing. It has 3M adhesive tape for proper mounting on aluminum, wood, or vinyl.

Primus Cable provides end-to-end security system solutions besides magnetic switches. Our products are manufactured of quality build materials and offered at the most competitive prices. Thank you for visiting our website.

Order from Primus Cable, and upgrade your home or business security system today!

If you have any questions, feel free to give us a call. 951-824-1571

Products 1-48 of 541
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10.91mm Power Transfer Device

Price: $26.38-$40.88
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Primus Cable Item #: AL-GRI-PTDCL -

    10.91mm Power Transfer Device with Custom Lengths The Power Transfer Device with Custom Lengths is a heavy duty length of 8449 stainless steel armored cable with aluminum end pieces. Cable twists to lock into the end pieces. Armored cable available in 7", 12", 18", 24", and 36" lengths with an inside diameter of 0.313."

    10.91mm Power Transfer Device

    Price: $30.14-$40.88
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    Primus Cable Item #: AL-GRI-PTDC -

      7.77mm Power Transfer Device with Custom Lengths The Power Transfer Device with Custom Lengths is a heavy duty length of 8296 stainless steel armored cable with aluminum end pieces. Cable twists to lock into the end pieces. Armored cable available in 7", 12", 18", 24", and 36" lengths with an inside diameter of 0.218."

      Adjustable Screw Plunger/Push Button Switch, Closed Loop, 3/8" Flanged w/ Leads - 10 Pack Adjustable Screw Plunger, Push Button Switch, Closed Loop, 3/8" Flanged, Leads

      Price: $36.00-$47.40
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      Primus Cable Item #: AL-GRI-PBF2020-L -

        Adjustable Screw Plunger Push Button Switch, Closed Loop, 3/8" Flanged w/ Leads - 10 Pack (White) The 3/8" diameter plunger switch series is a unique switch package, designed to incorporate a plunger or push-to-activate function into the shortest, most compact package available. Promoted as a solution to securing the newest generation of vinyl extruded or custom type windows, installation requires that a single hole be drilled, usually into the window frame, eliminating the...

        Adjustable Screw Plunger/Push Button Switch, Closed Loop, 3/8" Flanged w/ Screw Terminals - 10 Pack Adjustable Screw Plunger, Push Button Switch, Closed Loop, 3/8" Flanged, Screw Terminals

        Price: $47.20
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        Primus Cable Item #: AL-GRI-PBF2020-T -

          Adjustable Screw Plunger Push Button Switch, Closed Loop, 3/8" Flanged w/ Screw Terminals - 10 Pack (White) The 3/8" diameter plunger switch series is a unique switch package, designed to incorporate a plunger or push-to-activate function into the shortest, most compact package available. Promoted as a solution to securing the newest generation of vinyl extruded or custom type windows, installation requires that a single hole be drilled, usually into the window frame, eliminating the...

          Adjustable Screw Plunger/Push Button Switch, Closed Loop, 3/8" Press Fit w/ Leads - 10 Pack Adjustable Screw Plunger, Switch, Closed Loop, 3/8", Push Button, Press Fit, leads, White

          Price: $36.00-$47.40
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          Availability: In Stock
          Primus Cable Item #: AL-GRI-PB2020-L -

            Adjustable Screw Plunger Switch, Closed Loop, 3/8" Push Button Press Fit w/ Leads - 10 Pack (White) The 3/8" diameter plunger switch series is a unique switch package, designed to incorporate a plunger or push-to-activate function into the shortest, most compact package available. Promoted as a solution to securing the newest generation of vinyl extruded or custom type windows, installation requires that a single hole be drilled, usually into the window frame, eliminating the troublesome...

            Adjustable Screw Plunger/Push Button Switch, Closed Loop, 3/8" Press Fit w/ Screw Terminals - 10 Pack Adjustable Screw Plunger, Switch, Closed Loop, 3/8", Push Button, Press Fit, Screw Terminals, White

            Price: $47.20
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            Availability: In Stock
            Primus Cable Item #: AL-GRI-3020-WH -

              Adjustable Screw Plunger Switch, Closed Loop, 3/8" Push Button Press Fit w/ Screw Terminals - 10 Pack (White) The 3/8" diameter plunger switch series is a unique switch package, designed to incorporate a plunger or push-to-activate function into the shortest, most compact package available. Promoted as a solution to securing the newest generation of vinyl extruded or custom type windows, installation requires that a single hole be drilled, usually into the window frame, eliminating...

              Adjustable Screw Plunger/Push Button Switch, Open Loop, 3/8" Flanged w/ Leads - 10 Pack Adjustable Screw Plunger, Push Button Switch, Open Loop, 3/8" Flanged, Leads

              Price: $54.00-$65.40
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              Availability: In Stock
              Primus Cable Item #: AL-GRI-PBF-3030-L -

                Adjustable Screw Plunger Push Button Switch, Open Loop, 3/8" Flanged w/ Leads - 10 Pack (White) The 3/8" diameter plunger switch series is a unique switch package, designed to incorporate a plunger or push-to-activate function into the shortest, most compact package available. Promoted as a solution to securing the newest generation of vinyl extruded or custom type windows, installation requires that a single hole be drilled, usually into the window frame, eliminating the troublesome...

                Adjustable Screw Plunger/Push Button Switch, Open Loop, 3/8" Press Fit w/ Leads - 10 Pack Adjustable Screw Plunger, Switch, Open Loop, 3/8", Push Button, Press Fit, leads, White

                Price: $54.00-$65.40
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                Availability: Call To Order
                Primus Cable Item #: AL-GRI-PB-3030-L -

                  Adjustable Screw Plunger Switch, Open Loop, 3/8" Push Button Press Fit w/ Leads - 10 Pack (White) The 3/8" diameter plunger switch series is a unique switch package, designed to incorporate a plunger or push-to-activate function into the shortest, most compact package available. Promoted as a solution to securing the newest generation of vinyl extruded or custom type windows, installation requires that a single hole be drilled, usually into the window frame, eliminating the...

                  Alarmed Window Bar (Fits Windows 30"-42") Alarmed Window Bar (Fits Windows 30"-42")

                  Price: $37.98
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                  Primus Cable Item #: NPNB-WB-30-42 -

                    Alarmed Window Bar (Fits Windows 30"-42") Alarmed Window Bars will fit windows from 30” to 42” wide with no cutting required. If window is higher than 14”, two or more Window Bars may be used. The Window Bars protect both sides of a sliding window even when open without triggering an alarm and can be connected to a 24 hour zone. When the bar is dislodged an alarm is activated. The Alarmed Window Bars are easy to remove during an emergency and will work with both hard wired or...

                    Alnico V Bare Magnet 1/4" Diameter x 1" - Pack Of 10 Alnico, Bare, Magnet, 1/4" Diameter x 1", unpainted, pole painted

                    Price: $8.20-$9.60
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                    Availability: In Stock
                    Primus Cable Item #: AL-GRI-M-12 -

                      Alnico V Bare Magnet 1/4" Diameter x 1" - Pack Of 10 Magnet measures 1/4" Diameter x 1". Choose between an unpainted or pole end (towards switch) painted magnet style. NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                      Alnico V Bare Magnet 1/4" Diameter x 3/4" - Pack Of 10 Alnico, Bare, Magnet, 1/4" Diameter x 3/4", unpainted, pole painted

                      Price: $5.40-$9.60
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                      Primus Cable Item #: AL-GRI-M-10 -

                        Alnico V Bare Magnet 1/4" Diameter x 3/4" - Pack Of 10 Magnet measures 1/4" Diameter x 3/4". Choose between an unpainted or pole end (towards switch) painted magnet style. NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                        Alnico V Bare Magnet 1/4" Diameter x 5/8" - Pack Of 10 Alnico, Bare, Magnet, 1/4" Diameter x 5/8", unpainted, pole painted

                        Price: $5.40-$8.60
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                        Availability: In Stock
                        Primus Cable Item #: NPNB-M-17-W -

                          Alnico V Bare Magnet 1/4" Diameter x 5/8" - Pack Of 10 Magnet measures 1/4" Diameter x 5/8" Choose between an unpainted or pole end (towards switch) painted magnet style. NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                          Alnico V Bare Magnet 1/4” Diameter x 1 3/16”  - Pack Of 10 Alnico, Bare, Magnet, 1/4” Dia. x 1 3/16” , unpainted, pole painted

                          Price: $6.80-$8.00
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                          Availability: In Stock
                          Primus Cable Item #: AL-GRI-1741-BM -

                            Alnico V Bare Magnet 1/4” Diameter x 1 3/16” - Pack Of 10 Magnet measures 1/4” Dia. x 1 3/16”. Choose between an unpainted or pole end (towards switch) painted magnet style. NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                            Alnico V Bare Magnet W/ Tape

                            Price: $11.40
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                            Primus Cable Item #: AL-GRI-4357 -

                              Alnico V Bare Magnet 1/8" x 3/8" x 7/8" w/ Adhesive Tape - Pack Of 10 Magnet measures 1/8" x 3/8" x 7/8". NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                              Alnico V Bare Magnet 1/8” Diameter x 0.937” - Pack Of 10 Alnico, Bare, Magnet, 1/8” Diameter x 0.937”, unpainted, pole painted

                              Price: $9.60
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                              Primus Cable Item #: NPNB-5278 -

                                Alnico V Bare Magnet 1/8” Diameter x 0.937” - Pack Of 10 Magnet measures 1/8” Diameter x 0.937”. NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                                Alnico V Bare Magnet 3/16" Diameter x 1" - Pack Of 10 Alnico, Bare, Magnet, 3/16" Diameter x 1", unpainted, pole painted

                                Price: $5.60-$10.80
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                                Availability: Call For Shipping
                                Primus Cable Item #: NPNB-M-19 -

                                  Alnico V Bare Magnet 3/16" Diameter x 1" - Pack Of 10 Magnet measures 3/16" Diameter x 1". Choose between an unpainted or pole end (towards switch) painted magnet style. NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                                  Alnico V Bare Magnet 3/8" Diameter x 2 9/16" - Pack Of 10 Alnico V, Bare Magnet, 3/8" Diameter x 2 9/16"

                                  Price: $40.00
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                                  Primus Cable Item #: NPNB-3938 -

                                    Alnico V Bare Magnet 3/8" Diameter x 2 9/16" - Pack Of 10 Magnet measures 3/8" Diameter x 2 9/16". NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                                    Alnico V Bare Magnet 3/8” Diameter x 1 1/2” - Pack Of 10 Alnico, Bare, Magnet, 3/8” Dia. x 1 1/2”, unpainted, pole painted

                                    Price: $21.60-$27.20
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                                    Availability: In Stock
                                    Primus Cable Item #: NPNB-M-16-W -

                                      Alnico V Bare Magnet 3/8” Diameter x 1 1/2” - Pack Of 10 Magnet measures 3/8” Diameter x 1 1/2”. Choose between an unpainted or pole end (towards switch) painted magnet style. NOTE: All Sizes Are Approximate (We Do Not Guarantee Exact Measurements.)

                                      Angled Window Bracket Kit (For Alarmed Window Bar) Angled Window Bracket Kit (For Alarmed Window Bar)

                                      Price: $19.94
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                                      Primus Cable Item #: NPNB-WB-ASB -

                                        Angled Window Bracket Kit (For Alarmed Window Bar) Allows mounting of Alarmed Window Bar NPNB-WB-30-42 on angled windows.

                                        Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                        Price: $50.10
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                                        Primus Cable Item #: NPNB-B4510-AU -

                                          Biased High Security Concrete Concealed Switch, Universal Magnet, With 36" Armored Cable Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough magnetic field...

                                          Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                          Price: $47.34
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                                          Primus Cable Item #: NPNB-B4510-A -

                                            Biased High Security Concrete Concealed Switch, With Short "L" Bracket And 36" Armored Cable Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                            Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                            Price: $11.00
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                                            Availability: In Stock
                                            Primus Cable Item #: NPNB-40FB-12 -

                                              Biased High Security Flanged Round Magnetic Recessed 3/8" Switch Set With Standard 12" Leads - SPDT Open/Closed Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using...

                                              Biased High Security Industrial Overhead Aluminum Door Switch

                                              Price: $36.08-$36.76
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                                              Availability: In Stock
                                              Primus Cable Item #: NPNB-HS200-36 -

                                                Biased High Security Industrial Overhead Aluminum Door Switch Set (Floor Mount) With Armored 36" Cable Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                Price: $39.38
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                                                Availability: In Stock
                                                Primus Cable Item #: NPNB-B250-36 -

                                                  Biased High Security Industrial Overhead Aluminum Door Switch Set (Wall Mount) With Armored 36" Cable Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                  Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                  Price: $16.66-$20.74
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                                                  Availability: In Stock
                                                  Primus Cable Item #: NPNB-HS400-T -

                                                    Biased High Security Industrial Tamper Proof Surface Mount Switch Set With Concealed Terminals Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough magnetic field...

                                                    Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                    Price: $11.98
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                                                    Availability: In Stock
                                                    Primus Cable Item #: NPNB-70RB-12 -

                                                      Biased High Security Miniature 1/4" Recessed Switch Set With Standard 12" Leads - SPDT Open/Closed Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                      Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                      Price: $18.82
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                                                      Availability: In Stock
                                                      Primus Cable Item #: NPNB-B4460A -

                                                        Closed Loop Biased High Security Miniature Aluminum Commercial Switch Set With 18" Armored Cable Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                        Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                        Price: $11.96
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                                                        Availability: In Stock
                                                        Primus Cable Item #: NPNB-70FB-12 -

                                                          Biased High Security Miniature Surface Mount Switch Set With Break Away Flange And 12" End Leads Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                          Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                          Price: $11.94
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                                                          Availability: In Stock
                                                          Primus Cable Item #: NPNB-B70-12 -

                                                            Biased High Security Steel Door Magnetic Recessed 1" Switch Set With Standard 12" Leads - SPDT Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                            Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                            Price: $17.82
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                                                            Availability: In Stock
                                                            Primus Cable Item #: NPNB-112B-12 -

                                                              Biased High Security Miniature Surface Mounted Switch Set With Standard 12" Leads Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough magnetic field strength to...

                                                              Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                              Price: $17.82
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                                                              Availability: In Stock
                                                              Primus Cable Item #: NPNB-102B-12 -

                                                                Flanged Biased High Security Miniature Surface Mount Switch Set With Standard 12" Leads - SPDT Open/Closed (White) Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just...

                                                                Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                                Price: $10.20
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                                                                Availability: In Stock
                                                                Primus Cable Item #: NPNB-B4040-12 -

                                                                  Biased High Security Recessed 3/8" Press Fit Switch Sets With Standard 12" Leads - SPDT (White) Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                                  Biased High Security Recessed ANSI Switch (UL listed), Tamper Resistant - SPDT Open/Closed Biased High Security, Recessed, ANSI Switch, UL listed, Tamper Resistant, SPDT Open/Closed

                                                                  Price: $33.28
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                                                                  Availability: Call For Shipping
                                                                  Primus Cable Item #: NPNB-B229 -

                                                                    Biased High Security Recessed ANSI Switch (UL listed), Tamper Resistant - SPDT Open/Closed This recessed ANSI switch is an easy install and replaces the standard ANSI stainless steel door plate. The covert installation enhances resistance to tampering or compromise and provides optimum concealment. Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch...

                                                                    Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                                    Price: $22.32
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                                                                    Availability: In Stock
                                                                    Primus Cable Item #: NPNB-B194-12 -

                                                                      Biased High Security Steel Door Magnetic Recessed 1" Switch Set With Standard 12" Leads - SPDT Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough...

                                                                      Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                                      Price: $21.32-$23.22
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                                                                      Availability: In Stock
                                                                      Primus Cable Item #: NPNB-HS190-L -

                                                                        Biased High Security Steel Door Recessed 3/4" Switch Set With Standard 12" Leads - SPDT Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough magnetic...

                                                                        Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                                        Price: $15.14-$17.52
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                                                                        Availability: In Stock
                                                                        Primus Cable Item #: NPNB-HSB29P-L -

                                                                          Biased High Security Surface Mount Switch Set With 24" Jacketed Cable Leads Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough magnetic field strength to...

                                                                          Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                                          Price: $12.88
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                                                                          Availability: In Stock
                                                                          Primus Cable Item #: NPNB-B28A -

                                                                            Biased High Security Surface Mount Switch Set With Concealed Screw Terminals - Closed Loop Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough magnetic field...

                                                                            Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                                            Price: $12.86-$18.12
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                                                                            Availability: In Stock
                                                                            Primus Cable Item #: NPNB-HS-29-T -

                                                                              Biased High Security Surface Mount Switch Set With Covers And Screw Terminals (White) Available in SPDT or closed loop. Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using...

                                                                              Miniature Flanged Surface Mount Switch Set - 1" Gap - 200V/140V

                                                                              Price: $41.24-$49.54
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                                                                              Availability: In Stock
                                                                              Primus Cable Item #: NPNB-HS4400A-L -

                                                                                Biased High Security Weather Resistant Surface Mount Aluminum Industrial Wide Gap Switch Set Standard operation of a reed switch deals with the magnetic attraction of two paddles when introduced to a magnetic field. "Biased for high security" begins as a single pole double throw reed switch that is biased into an opposite condition. We begin with one open leg and one closed leg, but in the biasing operation we reverse the open to closed and the closed to open using just enough magnetic field...

                                                                                Box Tamper Switch With 12" Wire Leads - 10 Pack (Black) Box Tamper Switch, 12" Wire Leads, magnetic reed, three hole box tamper switch

                                                                                Price: $71.60-$89.00
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                                                                                Availability: In Stock
                                                                                Primus Cable Item #: AL-GRI-TSW-01 -

                                                                                  Box Tamper Switch With 12" Wire Leads - 10 Pack (Black) This magnetic reed, three hole box tamper switch is designed to fit almost all standard siren and panel boxes. Standard 12" wire leads provide easy hook up. Available in closed loop, open loop and S.P.D.T. Mounting hardware included.

                                                                                  Box Tamper Switch With Built In Shunt And 12" Wire Leads - 10 Pack (Gray) Box Tamper Switch, 12" Wire Leads, magnetic reed, three hole box tamper switch, shunt

                                                                                  Price: $70.60-$89.00
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                                                                                  Availability: In Stock
                                                                                  Primus Cable Item #: AL-GRI-TSW-01S-ST -

                                                                                    Box Tamper Switch With Built In Shunt And 12" Wire Leads - 10 Pack (Gray) This magnetic reed, three hole box tamper switch is designed to fit almost all standard siren and panel boxes. Coming with an adjustable plunger length, this box tamper switch series allows the installer to alarm the box to detect opening or prying to remove the box from its mounted position. Standard 12" wire leads provide easy hook up. Available in closed loop or open/closed SPDT. Mounting hardware included....

                                                                                    Box Tamper Switch With Built In Shunt And Screw Terminals - 10 Pack (Gray) Box Tamper Switch, Screw Terminals, magnetic reed, three hole box tamper switch, shunt

                                                                                    Price: $69.80
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                                                                                    Availability: In Stock
                                                                                    Primus Cable Item #: NPNB-TS-01S -

                                                                                      Box Tamper Switch With Built in Shunt And Screw Terminals - 10 Pack (Gray) This magnetic reed, three hole box tamper switch is designed to fit almost all standard siren and panel boxes. Coming with an adjustable plunger length, this box tamper switch series allows the installer to alarm the box to detect opening or prying to remove the box from its mounted position. Screw terminals (terminal block) provide easy hook up. Available in closed loop. Mounting hardware included. The shunt feature is...

                                                                                      Box Tamper Switch With Screw Terminals - 10 Pack (Black) Box Tamper Switch, Screw Terminals, terminal block, magnetic reed, three hole box tamper switch

                                                                                      Price: $71.00-$84.00
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                                                                                      Availability: In Stock
                                                                                      Primus Cable Item #: AL-GRI-TS-#### -

                                                                                        Box Tamper Switches With Screw Terminals - 10 Pack (Black) This magnetic reed, three hole box tamper switch is designed to fit almost all standard siren and panel boxes. Screw terminals (terminal block) provide easy hook up. Available in closed loop or open loop. Mounting hardware included.

                                                                                        Commercial Overhead Door Switch ("Vane" Switch For Door Applications With Larger Tracks) industrial, overhead door switch, commercial overhead door switch, for doors with larger tracks

                                                                                        Price: $33.90
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                                                                                        Availability: In Stock
                                                                                        Primus Cable Item #: NPNB-4482A -

                                                                                          Commercial Overhead Door Switch ("Vane" Switch For Door Applications With Larger Tracks) Now you can confirm the locking bolt position on a roll up or other overhead door with larger tracks! The commercial overhead door switch uses a simple magnetic blocking principal in this specialized security switch. Doors using a latching type flat bolt, which extends through a slot in the channel on the doors edge, can now both lock the door and verify to the alarm panel that the door is locked...

                                                                                          Commercial Overhead Door Switch ("Vane" Switch For Storage Units) industrial, overhead door switch, commercial overhead door switch, vane switch

                                                                                          Price: $14.58-$21.80
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                                                                                          Availability: In Stock
                                                                                          Primus Cable Item #: AL-GRI-IS4110-L -

                                                                                            Commercial Overhead Door Switch ("Vane" Switch For Storage Units) Now you can confirm the locking bolt position on a roll up or other overhead door! The commercial overhead door switch uses a simple magnetic blocking principal in this specialized security switch. Doors using a latching type flat bolt, which extends through a slot in the channel on the doors edge, can now both lock the door and verify to the alarm panel that the door is locked in the closed position. The commercial...

                                                                                            Concealed Contact Hinged Door Positioning Switch Concealed, Contact switch, Hinged Door

                                                                                            Price: $21.70
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                                                                                            Availability: Call For Shipping
                                                                                            Primus Cable Item #: NPNB-DPS70R -

                                                                                              Concealed Contact Hinged Door Positioning Switch Anywhere you have a hinge, you can have a contact. Tested and Listed for use on up to 3 hour fire rated doors and frames. Available standard as SPDT. Patented, unique, cost saving design. Patent # 6,724,285. Installs in just minutes, stays securely in place. Can be painted to match your hinge. Simple, U.L. listed, inexpensive design!

                                                                                              Concrete Concealed Switch, 0.450" x 2.5" Magnet, With Short "L" Bracket And 36" Armored Cable Concrete Concealed Switch, Armored 36" Cable, magnetic reed with L bracket

                                                                                              Price: $36.84
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                                                                                              Primus Cable Item #: AL-GRI-1257 -

                                                                                                Concrete Concealed Switch, 0.450" x 2.5" Magnet, With Short "L" Bracket And 36" Armored Cable Perhaps the best way to protect overhead door contacts from industrial motorized traffic like forklifts and large trucks is to recess or bury them into the concrete floor, allowing vehicles of this type to safely pass over them totally unaffected.

                                                                                                Concrete Concealed Switch, Universal Magnet, With 36" Armored Cable Concrete Concealed Switch, Universal Magnet, under ground magnetic reed

                                                                                                Price: $38.74
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                                                                                                Primus Cable Item #: NPNB-4510AU -

                                                                                                  Concrete Concealed Switch, Universal Magnet, With 36" Armored Cable Perhaps the best way to protect overhead door contacts from industrial motorized traffic like forklifts and large trucks is to recess or bury them into the concrete floor, allowing vehicles of this type to safely pass over them totally unaffected.