McMaster-Carr logo
    Filter by
    Switch Action
    Industrial Info Compare
    System of Measurement
    Number of Terminals
    Number of Positions
    Switch Designation
    Industrial Info Compare
    Position Designation
    Industrial Info Snippet
    Switch Starting Position
    Industrial Info Compare
    Switching Current
    Industrial Info Snippet
    Panel Cutout Diameter
    Number of Circuits Controlled
    Electrical Connection
    Switch Type
    Mounting Location
    Key Removal Position
    Number of Wire Leads
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    39 Products
    About Electrical Switches
    industrial info icon

    Choose a switch with the right trigger type, number of inputs, and control functions to power your equipment.

    Mil. Spec. Washdown Toggle Switches

    Image of Product. Front orientation. Toggle Switches. Mil. Spec. Washdown Toggle Switches .
    These switches meet MIL-S-3950. A rubber seal protects them from washdowns.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    No. of
    Terminals
    Switch
    Designation
    Position
    Designation
    Switching Current @ Voltage
    Max. Voltage
    Dp. Behind
    Panel
    Mounting Hardware
    Included
    Wire
    Connection
    Each
    3 Positions
     
    For 1/2" Diameter Panel Cutouts
    44 Off or 4 On
    Momentary
    124PDT
    (On)-Off-(On)
    8 amp @ 125V AC, 10 amp @ 28V AC28V DC
    125V AC
    1.35"YesScrew Terminal8002K136000000
     

    3/4" Panel-Mount Key Switches

    Image of Product. Front orientation. Key Switches. 3/4" Panel-Mount Key Switches, Wire Lead Connection.

    Wire Lead Connection

    Prevent accidental activation and limit access—these switches require a key to turn circuits on or off. All fit into a standard panel cutout.
    Keyed Alike—Keyed alike switches all open with the same key.
    Keyed Differently—Keyed differently switches each open with a unique key.
    Master Keyed—Keyed differently/master keyed switches are keyed differently but can be used with a master key (sold separately).
    Key Switches
    Replacement Keys
    Master Keys
    Wire
    Leads
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    No. of
    Terminals
    Switch
    Designation
    Switching Current
    @ Voltage
    Max. Voltage
    Dia.
    Dp. Behind
    Panel
    No.
    of
    Lg.
    No. of Keys
    Included
    Key Removal
    Position
    Each
    Each
    Each
    2 Positions with Metal Actuator Base
     
    Keyed Alike with Wire Lead Connection
    11 Off
    Momentary
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 1/8"210"2Center7188K1010000007188K10400000———0
    11 Off
    Maintained
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 1/8"210"2Center, Right7188K22000007188K620000———0
     
    Keyed Differently with Wire Lead Connection
    11 Off
    Momentary
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 1/8"210"2Center7188K102000007188K1050000———0
    11 Off
    Maintained
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 1/8"210"2Center, Right7188K21000007188K610000———0
     
    Keyed Differently/Master Keyed with Wire Lead Connection
    11 Off
    Momentary
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 1/8"210"2Center7188K10300000———07188K10600000
    11 Off
    Maintained
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 1/8"210"2Center, Right7188K2300000———07188K140000
     

    Sealed Touch-Pad Switches

    Image of Product. Front orientation. Touch-Pad Switches. Sealed Touch-Pad Switches, Rectangle.
    Image of Product. Front orientation. Touch-Pad Switches. Sealed Touch-Pad Switches, Round.

    Rectangle

    Round

    Suitable for areas with space limitations, these switches have a low profile and a small footprint. They lay flat or mount to a wall. Typically used in start/stop and door opening applications, switches can also be placed underneath objects to alert when the object is removed. All have a sealed housing that resists water and alcohols (not suitable for continuous contact).
    Shape
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    No. of
    Terminals
    Switch
    Designation
    Color
    Switching Current
    @ Voltage
    Actuation
    Force, lbf
    Material
    Dia.
    Lg.
    Wd.
    Thk.
    Each
    Rectangle11 Off
    Momentary
    2SPST-NO
    Black1 amp @ 28V AC/28V DC2.5PVC
    1"3/4"3/16"7692K4000000
    Round11 Off
    Momentary
    2SPST-NO
    Black1 amp @ 28V AC/28V DC2.5PVC
    1 1/2"1/4"7692K300000
    Mounting Frames

    High-Security 3/4" Panel-Mount Key Switches

    Image of Product. Front orientation. Key Switches. High-Security 3/4" Panel-Mount Key Switches.
    With a round key that is difficult to duplicate, these switches provide a higher degree of security than standard key switches.
    Keyed Alike—Keyed alike switches all open with the same key.
    Keyed Differently—Keyed differently switches each open with a unique key.
    Master Keyed—Keyed differently/master keyed switches are keyed differently but can be used with a master key (sold separately).
    Key Switches
    Replacement Keys
    Wire
    Leads
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    No. of
    Terminals
    Switch
    Designation
    Switching Current
    @ Voltage
    Max. Voltage
    Dia.
    Dp. Behind
    Panel
    No.
    of
    Lg.
    No. of Keys
    Included
    Key Removal
    Position
    Each
    Each
    2 Positions with Metal Actuator Base
     
    Keyed Alike with Wire Lead Connection
    11 Off
    Maintained
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 3/16"210"2Center, Right7188K260000007188K31000000
     
    Keyed Differently with Wire Lead Connection
    11 Off
    Maintained
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 3/16"210"2Center, Right7188K25000007188K5100000
     
    Keyed Differently/Master Keyed with Wire Lead Connection
    11 Off
    Maintained
    2SPST-NO
    7 amp @ 28V AC/28V DC28V AC
    28V DC
    7/8"1 3/16"210"2Center, Right7188K2700000———0
     
    Keys

    Safety Bumper Switches

    Image of Product. Front orientation. Bumper Switches. Safety Bumper Switches.
    Image of Attribute. Front orientation. Contains Annotated. Bumper Switches. Safety Bumper Switches.
    Prevent automatic doors from closing on a person or an object—these switches immediately turn machinery off when actuated with minimal force. Combine with a controller (sold separately) to create a self-monitoring system that also shuts off machinery when a fault is detected. They’re sensitive along their entire length and often used to signal when an overhead door closes or when an item reaches the end of a conveyor. The attached mounting channel can be mounted to a door or flat surface. Punch or drill holes into the channel to match an existing hole pattern or create a new mounting pattern. Switches are rated IP65 for protection from washdowns.
    Bumper
    Channel
    Lg.,
    ft.
    Ht.
    Wd.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    Switch
    Designation
    Switching Current
    @ Voltage
    Actuation
    Force, lbf
    Ht.
    Thick.
    Material
    Wire
    Connection
    No. of Wire
    Leads
    Cable Lead
    Lg., ft.
    Mounting Fasteners
    Included
    Color
    Each
    21.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N110000000
    31.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N12000000
    41.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N13000000
    51.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N14000000
    61.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N15000000
    81.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N16000000
    101.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N17000000
    121.55"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC1.21.28"0.1"Aluminum
    Wire Leads46NoBlack1944N18000000
    Switch Controllers

    High-Force Safety Bumper Switches

    Image of Product. Front orientation. Bumper Switches. High-Force Safety Bumper Switches.
    Image of Attribute. Front orientation. Contains Annotated. Bumper Switches. High-Force Safety Bumper Switches.
    Minimize false triggers—these switches require 10 lbs. of actuation force in order to shut off machinery immediately. Combine with a controller (sold separately) to create a self-monitoring system that also shuts off machinery when a fault is detected. They’re sensitive along their entire length and often used to signal when an overhead door closes or when an item reaches the end of a conveyor. The attached mounting channel can be mounted to a door or flat surface. Punch or drill holes into the channel to match an existing hole pattern or create a new mounting pattern. Switches are rated IP65 for protection from washdowns.
    Bumper
    Channel
    Lg.,
    ft.
    Ht.
    Wd.
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    Switch
    Designation
    Switching Current
    @ Voltage
    Actuation
    Force, lbf
    Ht.
    Thick.
    Material
    Wire
    Connection
    No. of Wire
    Leads
    Cable Lead
    Lg., ft.
    Mounting Fasteners
    Included
    Color
    Each
    21.69"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC101.28"0.1"Aluminum
    Wire Leads46NoBlack7703K410000000
    31.69"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC101.28"0.1"Aluminum
    Wire Leads46NoBlack7703K42000000
    41.69"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC101.28"0.1"Aluminum
    Wire Leads46NoBlack7703K47000000
    51.69"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC101.28"0.1"Aluminum
    Wire Leads46NoBlack7703K43000000
    61.69"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC101.28"0.1"Aluminum
    Wire Leads46NoBlack7703K44000000
    81.69"1.13"11 Off
    Momentary
    SPST-NO
    1 amp @ 28V AC, 28V DC101.28"0.1"Aluminum
    Wire Leads46NoBlack7703K45000000
    Switch Controllers
    back to top