McMaster-Carr logo
    Filter by
    Mount Type
    Wire Connection
    System of Measurement
    Switch Designation
    Switching Voltage
    Industrial Info Snippet
    Switch Starting Position
    Housing Material
    Electrical Connection
    Number of Circuits Controlled
    Environment
    Sensor Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Material
    Mounting Hole Diameter
    Number of Mounting Holes
    Sensing Distance
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Height
    Switch Type
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    3 Products

    Magnetic Contact Alarm Switches

    Image of Specification. Style A with Screw Terminals. Front orientation. Style A. Magnetic Contact Alarm Switches.
    Image of Specification. Style A with Wire Leads. Front orientation. Style A. Magnetic Contact Alarm Switches.

    Style A with Screw

    Terminals

    Style A with

    Wire Leads

    Wire contacts to an alarm system to alert when doors or windows are opened. Mount the magnet to the door or window and mount the switch to the frame. The alarm will activate when the magnet is pulled away by the opening door or window.
    Style
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Designation
    Switching Current
    @ Voltage
    Max. Sensing
    Distance
    Lg.
    Wd.
    Ht.
    Color
    Environment
    Enclosure
    Rating
    Each
    Plastic Housing with Screw Terminals
     
    Screw On with Sealed Housing
    A11 Off
    		SPST-NO
    		0.5 amp @ 100V AC/100V DC0.75"2.5"0.56"0.5"GrayDusty, WetNEMA 1, IP62
    		8039A1200000
    A11 Off
    		SPST-NO
    		0.5 amp @ 100V AC/100V DC1.25"3.93"0.75"0.62"GrayDusty, WetNEMA 1, IP62
    		8073A1100000
    A11 Off
    		SPST-NO
    		0.5 amp @ 100V AC/100V DC1.25"3.93"0.75"0.62"WhiteDusty, WetNEMA 1, IP62
    		8073A1300000
     
    back to top