McMaster-Carr logo
    Filter by
    Number of Circuits Controlled
    Number of Terminals
    Number of Positions
    Actuator Style
    Wire Connection
    Switch Action
    Industrial Info Compare
    Switch Designation
    System of Measurement
    Shaft Diameter
    Panel Cutout Diameter
    Mounting Location
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Electrical Connection
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Depth Behind Panel
    Panel Thickness
    Shaft Length
    Switch Type
    Enclosure Rating
    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)
    10 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.

    Rotary Switches

    Image of Product. Front orientation. Rotary Switches. Rotary Switches, For 13/32" Diameter Panel Cutouts.

    For 13/32"

    Diameter Panel

    Cutouts

    Control multiple devices with one switch. Turn the shaft to change switch positions. Each position closes a set of contacts per circuit, so you can select between multiple devices on one or more circuits.
    For 13/32" Diameter Panel Cutouts—Switches for ¹³⁄₃₂" panel cutout diameter require a knob.
    Shaft
    No. of Circuits
    Controlled
    Switch
    Action
    No. of
    Positions
    No. of
    Terminals
    Dp. Behind
    Panel
    Overall
    Dia.
    Lg.
    Dia.
    Switching Current @ Voltage
    Each
    Plastic
     
    With Tab For 13/32" Diameter Panel Cutouts
    4Maintained
    		31613/16"1"1 1/2"1/4"2.5 amp @ 125V AC, 0.35 amp @ 125V DC65865K34000000
     

    Safety Relays

    Receive signals from safety monitoring relays or controllers to switch devices off and on because of a system failure. Also known as force-guided or mechanically linked contacts, the interlocking opposing contacts on these relays cannot be open or closed at the same time. To keep your system from receiving false switching signals, the interlocking opposing contact must remain open even if a contact welds closed.
    IP20 rated, they have recessed terminals that prevent fingers and other objects from touching live circuits. These relays have been tested to safety standards that can help you achieve your system's PL (performance level) and SIL (safety integrity level). Choose a relay with a PL and SIL rating to meet the needs of your system. Higher ratings indicate greater safety protection. As your system becomes more complex, you generally require a higher safety protection level. Mount them to 35mm DIN rail (also known as DIN 3 Rail).
    SIL 2, PLd Max. System Safety Rating—DIN-Rail Mount
    Image of Product. Bottom orientation. Contains Annotated. Safety Relays. Safety Relays, SIL 2, PLd Max. System Safety Rating—DIN-Rail Mount.
    Relays that meet SIL 2 are tested for applications with a probability of failure of 0.1% to 1%. They’re often used for emergency shutdowns, and fire, gas, and overpressure detection.
    No. of
    Terminals
    Input
    Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    Ht.
    Wd.
    Dp.
    Features
    Each
    Screw-Terminal Wire Connection
     
    6 Circuits Controlled with 4 Off and 2 On—6PDT-4NO/2NC
    16120V AC106 amp @ 240V AC2503.4"0.9"3.9"Interlocked Opposing Contacts, LED Indicator, Recessed Terminals6242N1180000000
    1624V DC426 amp @ 240V AC2503.4"0.9"3.9"Interlocked Opposing Contacts, LED Indicator, Recessed Terminals6242N119000000
     
    6 Circuits Controlled with 5 Off and 1 On—6PDT-5NO/1NC
    1624V DC426 amp @ 240V AC2503.4"0.9"3.9"Interlocked Opposing Contacts, LED Indicator, Recessed Terminals6242N121000000
     

    Safety Relays with Diagnostic Capabilities

    Image of Product. Relay. Front orientation. Contains Annotated. Safety Relays. Safety Relays with Diagnostic Capabilities, DIN-Rail Mount.
    Image of Product. Relay with Time Delay. Front orientation. Contains Annotated. Safety Relays. Safety Relays with Diagnostic Capabilities, 2 Safety Outputs, DIN-Rail Mount.

    Relay

    Relay with

    Time Delay

    Control and diagnose issues with safety-critical circuits. These relays have a microprocessor that monitors safety components, such as emergency stops and light curtains, and sends a signal to stop the operation if a failure is detected and restart when the issue is resolved. They also help with diagnostic tasks because of their feedback circuit, which allows basic relays to communicate their status back to the safety relay. These relays have a duplicate set of input and output signals, so they’ll still stop the controlled device if one of the inputs fails.
    IP20 rated, they have recessed terminals which prevent fingers and other objects from touching live circuits. These relays have been tested to multiple safety standards and can help achieve PL, SIL, or CAT system ratings. They also meet ISO and IEC standards for machine safety.
    Mount them to 35 mm DIN rail (also known as DIN 3 Rail) for fast installation.
    Time Delay—Relays with delayed safety outputs are often used where power must be maintained after an input signal is received. For example, after a stop button for a machine is pressed, the guard door will stay locked until the machine cycle is finished.
    No. of
    Terminals
    Input Voltage
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Ht.
    Wd.
    Dp.
    For Use With
    Mounting
    Location
    Max. System
    Safety Rating
    Features
    Each
    2 Circuits Controlled
     
    2 Safety Outputs with 2 Off and 2 Delayed Safety Outputs with 2 Off
    1624V DC3 amp @ 240V AC
    3 amp @ 24V DC    		250V AC, 250V DC3.9"0.9"4.5"Emergency Stops, Light CurtainsDIN RailPLe, SIL 3Time Delay6322N150000000
     
    2 Safety Outputs with 2 Off and 1 Signal Output with 2 On
    1624V AC, 24V DC5 amp @ 240V AC
    5 amp @ 24V DC    		250V AC, 250V DC3.9"0.9"4.5"Two-Hand SwitchesDIN RailPLe, SIL 3—6322N16000000
     
    3 Safety Outputs with 2 Off and 1 Signal Output with 2 On
    16240V AC3 amp @ 240V AC
    2.5 amp @ 24V DC    		250V AC, 250V DC3.9"1.8"4.5"Emergency StopsDIN RailPLe, SIL 3—6322N13000000
     
    3 Circuits Controlled
     
    3 Safety Outputs with 2 Off and 1 Signal Output with 2 On
    1624V DC4 amp @ 230V AC
    4 amp @ 24V DC    		240V AC3.9"0.9"4.5"Emergency StopsDIN RailPLe, SIL 3—6322N19000000
     
    Auxiliary Contact Blocks for Relays with DC Input Voltage
    Image of Product. Auxiliary Contact Block. Front orientation. Contains Annotated. Relay Contacts. Safety Relays with Diagnostic Capabilities.
    Image of Product. Auxiliary Contact Block with Time Delay. Front orientation. Contains Annotated. Relay Contacts. Safety Relays with Diagnostic Capabilities, Time Delay.

    Auxiliary

    Contact Block

    Auxiliary

    Contact Block

    with Time Delay

    Auxiliary contact blocks allow you to control more components, such as signaling devices or basic relays.
    Time Delay—Auxiliary contact blocks with delayed safety outputs are often used where power must be maintained after an input signal is received. For example, after a stop button for a machine is pressed, the guard door will stay locked until the machine cycle is finished.
    No. of
    Terminals
    Input Voltage,
    V DC
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Ht.
    Wd.
    Dp.
    Features
    Each
    5 Safety Outputs
    16243 amp @ 240V AC
    2.5 amp @ 24V DC    		250V AC, 250V DC3.9"0.9"4.5"—6322N220000000
     
    4 Delayed Safety Outputs
    16243 amp @ 240V AC
    3 amp @ 24V DC    		250V AC, 250V DC3.9"0.9"4.5"Time Delay6322N18000000
     
    back to top