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MSS100-4Y BMS: 1″ Recessed SPDT Balanced Magnetic Switch

The MSS100-4Y BMS High Security Magnetic Contact is a 1″ recessed contact that works well in steel doors where a concealed contact is preferred. The UL Listed magnetic contact has one SPDT door switch and one SPDT magnetic tamper switch when magnet is present. There are six color coded wires and an adjustable rare earth magnet. The patented Flair recessed case locks into several gauges of steel doors as well as wood doors. Provide your customers more than just a door switch, give them time tested inexpensive Flair high security contacts with built in magnetic tamper.

  • Specifications

    Part Number

    MSS100-4Y BMS


    White, Brown, Gray, Black

    Electrical Rating

    Maximum 30 VDC, 20 ma, 3 W


    0″ to 3/8″ Adjustable

    Lead Length

    Six 12″ Wire Leads

    Loop Type (with magnet present)

    SPDT Door Switch, SPDT Magnetic Tamper


    1″ Dia. x .87″ Long

    Ul Rating

    UL 634 Magnetic Contact (Not Level I nor II)


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