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    25 Products

    Heavy Duty Limit Switches

    Image of Product. Front orientation. Contains Annotated. Limit Switches. Heavy Duty Limit Switches.
    Image of Product. Front orientation. Contains Annotated. Left Actuation. Heavy Duty Limit Switches.
    Image of Product. Front orientation. Contains Annotated. Right Actuation. Heavy Duty Limit Switches.
    Rugged enough for mining operations, these limit switches require a high actuation force, like heavy rocks moving on a conveyor. They open and close a circuit as quickly as a snap-acting switch but have a larger actuator for larger objects. The roller on the end of the lever arm reduces friction to prevent wear and tear on the switch. Rated NEMA 4 and 13 as well as IP67, these switches are protected from dirt, oil spraying, and temporary submersion.
    To determine if you need a right or left actuation direction, stand facing where you'll put the switch. If objects will be passing to the right, you'll need a right actuation direction. If they'll be passing to the left, you'll need a left actuation direction.
    Housing
    Actuation
    Direction
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Switch
    Action
    Switch
    Designation
    Switching Current @ Voltage
    Max. Voltage
    Actuation Torque,
    in·ozf
    Operating Temp.
    Range, ° F
    Actuator
    Ht.
    For Max.
    Cable OD
    No. of
    Terminals
    Lg.
    Ht.
    Dp.
    Housing
    Material
    Enclosure Rating
    Each
    Roller Lever Actuator
     
    Screw-Terminal Wire Connection
    Left22 Off
    		Momentary
    		DPST-NO
    		20 amp @ 120V AC, 5 amp @ 120V DC600V AC
    600V DC    		150-10 to 1855.7"0.5"42.3"5"3.4"AluminumNEMA 4, NEMA 13, IP67
    		7904N220000000
    Right22 Off
    		Momentary
    		DPST-NO
    		20 amp @ 120V AC, 5 amp @ 120V DC600V AC
    600V DC    		150-10 to 1855.7"0.5"42.3"5"2"AluminumNEMA 4, NEMA 13, IP67
    		7904N21000000
     

    Valve Position Sensors

    Image of ProductInUse. Front orientation. Contains Annotated. Proximity Sensors. Valve Position Sensors.
    Image of Product. With Flat Face. Front orientation. Flat Face. Valve Position Sensors.

    With Flat Face

    Image of Product. With Curved Face. Front orientation. Curved Face. Valve Position Sensors.

    With Curved Face

    Image of Specification. 4-Pole M12 Plug. Front orientation. Proximity Sensors. Valve Position Sensors.

    4-Pole

    M12

    Plug

    These sensors detect when a valve is open or closed, supporting flow and temperature control within your system. Secure the sensor to your valve actuator’s mounting holes, and attach an activator (sold separately) to the actuator's shaft. As the actuator opens and closes the valve, the activator rotates until its targets align with the sensor's two inductive sensors. Once they’re aligned, your system will know that the valve is either open or closed—offering reliable feedback on your valve’s position. Connect these sensors to programmable logic controllers (PLCs) to support automated processes. They meet various national and international safety standards, and they’re rated IP67 to protect against dust, washdowns, and temporary submersion.
    To view wiring diagrams, select a part number and click Product Detail.
    Curved Face—Sensors with a curved face minimize pinch points between the sensor and activator, making them good for manually-controlled valves.
    Plug In—Sensors with a 4-pole M12 plug connect to cables with a socket (sold separately), so you can quickly connect and disconnect them.
    Switch Starting
    Position
    Switching
    Freq., Hz
    Max. Sensing
    Distance, mm
    Output Digital
    Signal
    Electrical
    Connection Type
    Input Voltage,
    V DC
    Current
    Output, mA
    No. of Wire
    Leads
    Lg.,
    mm
    Circuit
    Protection
    Cable Lead
    Lg., ft.
    Temp. Range,
    ° F
    Enclosure
    Rating
    Each
    Flat Face
     
    With 4-Pole M12 Connection
    2 Off
    		5003PNPPlug In10 to 30100—36Reverse Polarity—-10 to 155IP67
    		7122N160000000
     
    With Wire Lead Connection
    2 Off
    		5003PNPHardwire10 to 30100436Reverse Polarity16-10 to 155IP67
    		7122N18000000
     
    With Spring-Clamp Terminal Connection
    2 Off
    		5003PNP—10 to 30100—78Reverse Polarity—-10 to 155IP67
    		7122N19000000
     
    Curved Face
     
    With 4-Pole M12 Connection
    2 Off
    		5003PNPPlug In10 to 30200—35Reverse Polarity—-10 to 155IP67
    		7122N11000000
    2 Off
    		1,0004PNPPlug In10 to 30200—42Reverse Polarity—-10 to 155IP67
    		7122N12000000
     
    With Wire Lead Connection
    2 Off
    		1,0004PNPHardwire10 to 30200442Reverse Polarity6 1/2-10 to 155IP67
    		7122N14000000
     
    With Screw Terminal Connection
    2 Off
    		1,0004PNP—10 to 30200—64Reverse Polarity—-10 to 155IP67
    		7122N15000000
     
    Accessories for Sensors
    Signal Activators
    Image of Product. Style A. Front orientation. Style A.
    Image of Product. Style B. Front orientation. Style B.

    Style A

    Style B

    Image of Product. Style C. Front orientation. Style C.
    Image of Product. Style D. Front orientation. Style D.

    Style C

    Style D

    Image of Product. Style E. Front orientation. Style E.
    Image of Product. Style F. Front orientation. Style F.

    Style E

    Style F

    The position of metal targets on your activator determines when your sensor sends a signal to your PLC. To install, line up one of the activator's targets with one of the sensors while your valve is closed. Choose an activator that prompts your desired signal.
    Styles A and F—Styles A and F prompt a signal from your sensor to your system when your valve is fully opened and closed.
    Style B—Style B have a symmetrical design so you can position a sensor on both sides of the activator to create redundant signals and support safety applications.
    Style C—Style C prompt a signal from your sensor when your valve is not fully opened or closed—such as when your valve is in motion or stuck partially open.
    Style D—Style D have customizable targets, prompting a signal when your valve reaches the position or range of motion you select.
    Style E—Style E include a housing that protects the activator against debris and damage. Colored on/off indicators make readings clear from far away. Use the included captive screws for easy mounting.
    Housing
    Style
    For Max.
    Shaft Dia., mm
    For Min.
    Shaft Dia., mm
    For Shaft Lg., mm
    Indicator
    Color
    Dia.,
    mm
    Ht.,
    mm
    Body
    Material
    Temp. Range,
    ° F
    Mounting Fasteners
    Included
    Dia.,
    mm
    Ht.,
    mm
    Material
    Each
    For Flat Sensor Faces
    A58—20, 30—6539Plastic-10 to 155Yes———7123N11000000
    A90—20, 50—11563Plastic-10 to 155Yes———7123N1400000
    B58—20, 30—6539Plastic-10 to 155Yes———7123N2300000
    C58—20, 30—6539Plastic-10 to 155Yes———7123N1200000
    D53—20—6540Plastic-10 to 155Yes———7123N2200000
    E49—20, 30Black, Yellow6568Plastic-10 to 155Yes8081.6Plastic7123N1800000
    E49—20, 30Green, Red6568Plastic-10 to 155Yes8081.6Plastic7123N1300000
     
    For Curved Sensor Faces
    F—3420, 30, 50—4039Plastic-10 to 155Yes———7123N1700000
    F34—20—4032Plastic-10 to 155Yes———7123N1500000
    F34—30—4043Plastic-10 to 155Yes———7123N1600000
     
    NAMUR M12 Cables
    Image of Product. Front orientation. Contains Annotated. Metric Circular Cords. Straight End.
    Image of Product. Front orientation. Contains Annotated. Metric Circular Cords. 90° Elbow End.

    Straight End

    90° Elbow End

    16 ft. Long
    32 ft. Long
    49 ft. Long
    Connection
    End Type
    End
    Shape
    Electrical
    Connection
    Face
    Diameter
    Each
    Each
    Each
    SocketStraightWire Leads0.3"7109N150000007109N160000007109N17000000
    Socket90° ElbowWire Leads0.3"7109N18000007109N19000007109N2100000
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