McMaster-Carr logo
    Filter by
    System of Measurement
    Number of Circuits Controlled
    Operation Type
    Number of Terminals
    Electrical Connection
    Switch Action
    Industrial Info Compare
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Enclosure Rating
    Industrial Info Compare
    Mechanical Life Cycles
    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)
    89 Products

    DIN-Rail Mount Interface Relays

    Isolate input and output circuits to prevent damage from voltage spikes, reduce signal interference, and amplify signal. These relays interface between your controller and components—they receive a signal from the controller to switch power on or off to the components. All have an LED indicator that shows you if your switch is actuated, so you know it’s connected and wired correctly. Use them to communicate signals to devices like motors or sensors. Mount them on 35 mm DIN rail (also known as DIN 3 rail).
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Interface Relays, 1 Circuit Controlled, With Screw Terminals.
    Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Interface Relays, 1 Circuit Controlled, With Spring-Clamp Terminals.

    With Screw

    Terminals

    With

    Spring-Clamp

    Terminals

    With Spring-Clamp Terminals—Relays with spring-clamp terminals connect and disconnect to wires without needing to turn screws. Because there is no screw, these connections have less risk of loosening over time than screw terminals, even when there is vibration.
    Interface Relays
    Replacement
    Relays
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    hp @ Switching
    Voltage
    Ht.
    Wd.
    Dp.
    Features
    Each
    Each
    With Screw Terminals
    5240V AC36 amp @ 240V AC250—3.5"0.2"3"LED Indicator8262T160000008262T2200000
    5240V AC3.516 amp @ 240V AC2501/4 hp @ 120V AC3.5"0.6"3"LED Indicator4144N22000004026N120000
    512V AC, 12V DC166 amp @ 240V AC250—3.5"0.2"3"LED Indicator8262T14000008262T150000
    524V AC, 24V DC116 amp @ 240V AC250—3.5"0.2"3"LED Indicator8262T11000008262T210000
    5120V AC, 120V DC56 amp @ 240V AC250—3.5"0.2"3"LED Indicator8262T12000008262T220000
    512V DC4116 amp @ 240V AC2501/4 hp @ 120V AC3.5"0.6"3"LED Indicator4144N11000004026N110000
     
    With Spring-Clamp Terminals
    512V AC, 12V DC166 amp @ 240V AC250—3.7"0.2"3"LED Indicator4144N15000008262T150000
    524V AC, 24V DC116 amp @ 240V AC250—3.7"0.2"3"LED Indicator4144N16000008262T210000
    5120V AC, 120V DC56 amp @ 240V AC250—3.7"0.2"3"LED Indicator4144N17000008262T220000
     
    2 Circuits Controlled with 2 Off or 2 On—DPDT
    Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Interface Relays, 2 Circuits Controlled, With Screw Terminals.

    With Screw

    Terminals

    Interface Relays
    Replacement
    Relays
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    hp @ Switching
    Voltage
    Ht.
    Wd.
    Dp.
    Features
    Each
    Each
    With Screw Terminals
    8120V AC, 120V DC4.58 amp @ 240V AC2501/2 hp @ 120V AC3.5"0.6"3"LED Indicator4144N130000004026N1300000
    8240V AC, 240V DC58 amp @ 240V AC2501/2 hp @ 120V AC3.5"0.6"3"LED Indicator4144N14000004026N130000
     

    DIN-Rail Mount Solid State Interface Relays

    With no moving parts, these solid state relays last longer, switch faster, and are quieter than mechanical relays. They interface between your controller and components to isolate input and output circuits, which protects components from voltage spikes, amplifies the relay’s signal, and reduces interference for reliable transmission. The relay’s LED indicator shines when it’s powered on, so you know at a glance which relays are wired correctly and what the switching position is. These relays are often used for switching small motors and sensors. Rated IP20, they prevent fingers and other objects from touching live circuits.
    Mount them on 35 mm DIN rail (also known as DIN 3 rail) with the included socket. Relays disconnect from the socket for easy replacement.
    1 Circuit Controlled with 1 Off—SPST-NO
    Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Solid State Interface Relays, 1 Circuit Controlled, With Screw Terminals.
    Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Solid State Interface Relays, 1 Circuit Controlled, With Spring-Clamp Terminals.

    With Screw

    Terminals

    With Spring-Clamp

    Terminals

    With Spring-Clamp Terminals—Relays with spring-clamp terminals connect and disconnect to wires without needing to turn screws. With no screws to shake loose with vibration, these terminals hold tight over time.
    Interface Relays
    Replacement
    Relays
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Ht.
    Wd.
    Dp.
    Features
    Each
    Each
    With Screw Terminals
    4120V AC, 120V DC5.52 amp @ 240V AC275V AC3.5"0.2"3"LED Power Indicator4103N130000008262T19000000
    4120V AC, 120V DC5.56 amp @ 24V DC33V DC3.5"0.2"3"LED Power Indicator4103N12000008262T1800000
    424V DC10.52 amp @ 240V AC275V AC3.5"0.2"3"LED Power Indicator4103N11000004799T2200000
    524V AC, 48V AC, 120V AC, 240V AC, 24V DC, 48V DC, 60V DC, 120V DC, 240V DC185 amp @ 30V DC33V DC3.5"0.5"3.4"LED Power Indicator8299K15000004026N1600000
    524V DC8.53 amp @ 30V DC33V DC3.1"0.2"3.6"LED Power Indicator8299K1400000———0
     
    With Spring-Clamp Terminals
    4120V AC, 120V DC5.52 amp @ 240V AC275V AC3.7"0.2"3"LED Power Indicator4103N101000008262T1900000
    4120V AC, 120V DC5.56 amp @ 24V DC33V DC3.7"0.2"3"LED Power Indicator4103N102000008262T1800000
    424V DC10.52 amp @ 240V AC275V AC3.7"0.2"3"LED Power Indicator4103N103000004799T2200000
    424V DC10.5100 mA @ 48V DC53V DC3.7"0.2"3"LED Power Indicator4103N105000004103N10600000
    424V DC10.56 amp @ 24V DC33V DC3.7"0.2"3"LED Power Indicator4103N104000004799T2300000
     

    Circuit Board Safety Relays

    Image of Product. Front orientation. Contains Annotated. Safety Relays. Circuit Board Safety Relays, 8 Terminals.
    Image of Specification. Front orientation. Contains Annotated. Safety Relays. Circuit Board Safety Relays, 10 Terminals.
    Image of Specification. Front orientation. Contains Annotated. Safety Relays. Circuit Board Safety Relays, 14 Terminals.

    8 Terminals

    10 Terminals

    14

    Terminals

    Reduce connection errors on circuit boards that control machine guards and other safety devices. Also known as force-guided contact relays, they have contact pairs that won’t close at the same time, even if contacts stick or weld shut. These relays take up less space on a board than those with electrical wiring because their solder pin terminals mount directly through circuit board holes. Use them to control high-power components, such as fans and heaters, from a low-power circuit.
    Mechanical Indicator—Relays with a mechanical indicator show you whether they’re switched on or off with a flag. Peek through the window on the side to quickly check the flag’s position.
    Surge Suppression Coverage—Relays with surge suppression coverage protect sensitive electronics from damage and malfunction by eliminating voltage spikes. Switching off a relay can generate surges of 300 to 500 volts, but a diode within these relays suppresses these surges. An LED indicator on these relays lights up when they’re on, so you know at a glance if they’re wired correctly.
    No. of
    Terminals
    Input Voltage,
    V DC
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Mechanical
    Life Cycles
    Ht.
    Wd.
    Dp.
    Pin
    Lg.
    Features
    Surge Suppression
    Coverage
    Each
    2 Circuits Controlled with 2 Off or 2 On—DPDT
    812598 amp @ 240V AC/24V DC250V AC, 125V DC10,000,0001.1"0.5"1"0.2"Interlocked Opposing Contacts—6253N13000000
    824293 amp @ 240V AC/24V DC250V AC, 125V DC10,000,0001.1"0.5"1"0.16"Interlocked Opposing Contacts, Mechanical Indicator—6253N1200000
    824298 amp @ 240V AC250V AC10,000,0001.1"0.5"1"0.2"Interlocked Opposing Contacts—6253N1100000
     
    4 Circuits Controlled with 2 Off and 2 On—4PST-2NO/2NC
    1012306 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts—6253N1500000
    1012326 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N2500000
    1024156 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts—6253N1400000
    1024176 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N2600000
     
    4 Circuits Controlled with 3 Off and 1 On—4PST-3NO/1NC
    1012306 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts—6253N1600000
    1012326 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N2700000
    1024156 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts—6253N1700000
    1024176 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0001.6"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N2800000
     
    6 Circuits Controlled with 3 Off and 3 On—6PST-3NO/3NC
    1412416 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts—6253N1800000
    1412436 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N2900000
    1424206 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts—6253N1900000
    1424226 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N3100000
     
    6 Circuits Controlled with 4 Off and 2 On—6PST-4NO/2NC
    1412416 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts—6253N2100000
    1412436 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N3200000
    1424206 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts—6253N2200000
    1424226 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N3300000
     
    6 Circuits Controlled with 5 Off and 1 On—6PST-5NO/1NC
    1412416 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts—6253N2400000
    1412436 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N3400000
    1424206 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts—6253N2300000
    1424226 amp @ 240V AC/30V DC250V AC, 125V DC10,000,0002"0.5"1"0.14"Interlocked Opposing Contacts, LED IndicatorFull6253N3500000
     

    Multifunction Monitoring Relays

    Image of Attribute. Front orientation. Contains Annotated. Monitoring Relays. Multifunction Monitoring Relays.
    Monitor phase, voltage, and frequency at the same time to protect motors, generators, and other three-phase circuits from burning out or overheating. They'll switch the circuit off if they detect voltage or frequencies outside of the set range or phase loss, imbalance, or reversal. Rated IP20, they have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on a 35 mm DIN rail (also known as DIN 3 rail) for fast installation.
    These relays use IO-Link, so they can be programmed, monitored, and reset remotely by connecting them to a programmable logic controller (PLC), human-machine interface (HMI), or computer. If you want to program them locally, they have a keypad.
    Spring-Clamp-Terminal Wire Connection—Relays with spring-clamp terminals connect and disconnect to wire without screws. Because there’s no screw, these connections are less likely to loosen over time, even in high-vibration environments.
    No. of
    Terminals
    Input Voltage,
    V DC
    Trip Voltage,
    V AC
    Input Freq.,
    Hz
    Trip Freq.,
    Hz
    Trip Time,
    sec.
    Reset
    Type
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Adjustment Mechanism
    Ht.
    Wd.
    Dp.
    Each
    1 Circuit Controlled with 1 Off or 1 On—SPDT
     
    Screw Terminals with IO-Link
    122490 to 76050, 6015 to 700.1 to 30Automatic3 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad3.9"0.9"3.6"8449N120000000
     
    Spring-Clamp Terminals with IO-Link
    122490 to 76050, 6015 to 700.1 to 30Automatic3 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad3.9"0.9"3.6"8449N11000000
     

    I/O Modules

    Image of System. Components Sold Separately. Front orientation. Contains Annotated. I/O Modules.

    Components Sold Separately

    Create a system of sensors and actuators that you can remotely update, view measurements from, and receive error messages in real time. IO-Link systems minimize downtime by locating issues such as cut cables or dirty sensors quickly. They send only digital signals to your PLC, regardless of whether your sensors and actuators send digital or analog signals. Because these systems send digital signals, they’re more reliable and less prone to data error and signal loss than analog signals. It also means you don't have to use expensive shielded cables since they resist EMI.
    When retrofitting an existing system, you'll need to make sure your PLC can incorporate IO-Link. Check with your PLC manufacturer—most have hardware that allows you to upgrade your PLC to run IO-Link.
    Note: Sockets may have extra holes on their face that are not used.
    Expansion Modules
    Image of Product. Front orientation. I/O Modules. Expansion Modules.
    Expansion modules increase the number of inputs and outputs in your IO-Link system, so you can add more sensors and actuators to your network. Connect multiple devices to each expansion module using M12 connectors, without needing to wire your devices inside a control cabinet. They transmit signals from multiple devices with a single cord. Expansion modules are optional, but when used, they must connect to a controller. Mount them on your equipment to save space in your control cabinet.
    IP65 Enclosure Rating—IP65 rated components can be rinsed.
    IP67 Enclosure Rating—IP67 rated components can be temporarily submerged in water.
    IP69K Enclosure Rating—IP69K rated components hold up to high-pressure and high-temperature washdowns.
    Enclosure Rating—IP rated components block out dust and withstand some water, so they do not require an enclosure. Ports that are unused must be capped to maintain their rating.
    Input
    Output
    Expansion Module
    Type
    Communication
    Protocol
    No. of Device
    Ports
    Total No. of
    M12 Connections
    Type
    Signal
    Voltage,
    V DC
    No.
    of
    Type
    Signal
    Current,
    mA, amp
    No.
    of
    Operating
    Voltage, V DC
    Certification
    Each
    Surface Mount
     
    IP65, IP67
    Input, OutputIO-Link810DigitalPNP18 to 3016DigitalPNP3.61618 to 30CE Marked
    		7603N150000000
    OutputIO-Link68————DigitalPNP3.61218 to 30UL Listed, C-UL Listed, CE Marked
    		7603N13000000
    OutputIO-Link1012————DigitalPNP3.62018 to 30UL Listed, C-UL Listed, CE Marked
    		7603N14000000
     
    IP65, IP67, IP69K
    Input, OutputIO-Link810DigitalPNP18 to 3016DigitalPNP3.61618 to 30CE Marked
    		7603N21000000
    OutputIO-Link68————DigitalPNP3.61218 to 30UL Listed, C-UL Listed, CE Marked
    		7603N18000000
    OutputIO-Link1012————DigitalPNP3.62018 to 30UL Listed, C-UL Listed, CE Marked
    		7603N19000000
     
    Converters
    Image of Product. Front orientation. Signal Converters.
    Converters translate analog signals to digital signals, making sensors and actuators IO-Link compatible. They are required to connect analog components to controllers and modules.
    IP67 Enclosure Rating—IP67 rated components can be temporarily submerged in water.
    Input
    Output
    Signal Converter Type
    Total No. of
    M12 Connections
    Signal
    Type
    Digital Input
    Signal Type
    Analog Input
    Signal Type
    No.
    of
    Signal Type
    Digital Output
    Signal Type
    Analog Output
    Signal Type
    No.
    of
    Certification
    Each
    M12 Plug In
     
    Washdown (IP67)
    Analog to Digital2Analog—0 to 10V DC2DigitalPNP—1UL Listed, C-UL Listed, CE Marked
    		7603N520000000
    Analog to Digital to Analog2Analog—4 to 20 mA1Digital, AnalogPNP4 to 20 mA2UL Listed, C-UL Listed, CE Marked
    		7603N51000000
    Digital to Analog2DigitalPNP—1Analog—4 to 20 mA2UL Listed, C-UL Listed, CE Marked
    		7603N54000000
    Digital to Analog2DigitalPNP—1Analog—0 to 10V DC2UL Listed, C-UL Listed, CE Marked
    		7603N53000000
     
    Caps
    Image of Product. Front orientation. Metric Circular Connector Caps. For Plugs.

    For Plugs

    Image of Product. Front orientation. Metric Circular Connector Caps. For Sockets.

    For Sockets

    Protective caps prevent dust and debris from harming M12 connections when they're not in use. They also help maintain IP ratings by covering unused ports.
    Stainless Steel—Stainless steel protective caps have a neoprene gasket, which helps maintain IP69K ratings.
    For
    Thread
    Size
    Location
    Material
    Temp. Range,
    ° F
    Includes
    Each
    For Plugs, For Receptacles
    M12
    		ExternalAnodized Aluminum0 to 220Lanyard6897K73000000
    M12
    		ExternalStainless Steel0 to 220Lanyard6897K7500000
     
    For Receptacles, For Sockets
    M12
    		InternalAnodized Aluminum0 to 220—6897K7400000
    M12
    		InternalStainless Steel0 to 220Lanyard6897K5900000
     

    Circuit Board Relays

    Image of Product. 8 Terminals. Front orientation. Contains Annotated. Relays. Circuit Board Relays, Mechanical Operation.
    Image of Product. 5 Terminals. Front orientation. Contains Annotated. Relays. Circuit Board Relays, Mechanical Operation.
    Image of Product. 6 Terminals. Front orientation. Contains Annotated. Relays. Circuit Board Relays, Mechanical Operation.
    Image of Product. 14 Terminals. Back orientation. Relays. Circuit Board Relays, Mechanical Operation.

    8 Terminals

    5 Terminals

    6 Terminals

    14 Terminals

    Smaller than relays with electrical wiring, these relays fit in compact devices. Mount them through holes on circuit boards with their solder pin terminals. Use them to control heaters, fans, and other high-power components from a low-power circuit.
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    Mechanical
    Life Cycles
    Ht.
    Wd.
    Dp.
    Pin
    Lg.
    Each
    Mechanical Operation
     
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    512V AC, 12V DC146 amp @ 240V AC25010,000,0001.1"0.2"0.6"0.14"8262T1500000
    5120V AC8.410 amp @ 240V AC25010,000,0001.1"0.5"1"0.21"6301N110000
     
    2 Circuits Controlled with 2 Off—DPST-NO
    612V DC14150 amp @ 400V AC4001,000,0002"1.3"2.3"0.18"6301N1300000
    1412V DC240100 amp @ 400V AC4001,000,0002.1"2.1"2.3"0.18"6301N1400000
    1424V DC120100 amp @ 400V AC4001,000,0002.1"2.1"2.3"0.18"6301N1500000
     
    2 Circuits Controlled with 2 Off or 2 On—DPDT
    8120V AC8.48 amp @ 240V AC25010,000,0001.1"0.5"1"0.21"6301N120000
     
    3 Circuits Controlled with 3 Off—3PST-NO
    812V DC22450 amp @ 400V AC4001,000,0002"1.3"2.3"0.18"6301N1600000
    824V DC7150 amp @ 400V AC4001,000,0002"1.3"2.3"0.18"6301N1700000
     

    Ground-Fault Monitoring Relays

    Image of Attribute. Front orientation. Contains Annotated. Monitoring Relays. Ground-Fault Monitoring Relays, Screw Terminals with IO-Link.
    Image of Attribute. Front orientation. Contains Annotated. Monitoring Relays. Ground-Fault Monitoring Relays, Spring-Clamp Terminals with IO-Link.

    Screw Terminals with

    IO-Link

    Spring-Clamp

    Terminals with

    IO-Link

    Detect and mitigate ground faults to prevent harm to equipment, circuits, and people. These relays monitor the differential between incoming and outgoing current, also known as residual current. When the balance is off, they trip and cut power to the circuit. These relays are highly sensitive, so you can trust them to de-energize faulty circuits before a minor issue becomes a major one. Rated IP20, they have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on 35 mm DIN rail (also known as DIN 3 rail) for fast installation.
    These relays require a current-indicating ring (sold separately) to operate. Choose a ring that is large enough for your lines to pass through. Feed the lines of the circuit through the center of the ring and connect the indicating ring output to the relay.
    Spring-Clamp-Terminal Wire Connection—Relays with spring-clamp terminals connect and disconnect to wire without screws. Because they don’t have screws, there’s less of a risk that they will loosen over time, even when they’re under vibration.
    IO-Link Communication Protocol—Relays with IO-Link can be programmed, monitored, and reset remotely by connecting them to a programmable logic controller (PLC), human-machine interface (HMI), or computer. If you want to program them locally, they have a keypad.
    No. of
    Terminals
    Input Voltage,
    V DC
    Trip Current,
    amp
    Trip Time,
    sec.
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Adjustment Mechanism
    Ht.
    Wd.
    Dp.
    Features
    Each
    Screw Terminals with IO-Link
     
    2 Circuits Controlled with 2 Off or 2 On—DPDT
    12240.03 to 400 to 9993 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad4"0.9"3.6"Remote Reset8121N1090000000
     
    Spring-Clamp Terminals with IO-Link
     
    2 Circuits Controlled with 2 Off or 2 On—DPDT
    12240.03 to 400 to 9993 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad4.1"0.9"3.6"Remote Reset8121N111000000
     
    Current Indicating Rings
    Image of ProductInUse. Front orientation. Current Indicating Rings. Ground-Fault Monitoring Relays.
    ID
    Ring
    Thk.
    Ht.
    Wd.
    Dp.
    Each
    1.3"0.8"2.9"2 1/2"1.6"8121N105000000
    1.9"0.8"3.9"3.4"1.6"8121N10600000
    2.7"0.8"4.6"4.1"1.6"8121N10700000
    4.7"0.8"6.7"6.1"1.6"8121N108000000

    Voltage-Monitoring Relays

    Safeguard your equipment against overheating, wear, and malfunction from a spike or dip in voltage. These relays continuously monitor your AC or DC power supply and trip when the voltage is outside a set range. Rated IP20, these relays have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on a 35 mm DIN rail (also known as DIN 3 rail) for fast installation.
    Monitoring Relays with IO-Link
    Image of Attribute. Front orientation. Contains Annotated. Monitoring Relays. Voltage-Monitoring Relays, Monitoring Relays with IO-Link.
    Relays with IO-Link can be programmed, monitored and reset remotely by connecting them to a programmable logic controller (PLC), human-machine interface (HMI), or computer. If you want to program them locally, they have a keypad.
    With Spring-Clamp Terminals—Relays with spring-clamp terminals connect and disconnect to wire without screws. Because there’s no screw, these connections are less likely to loosen over time, even in high-vibration environments.
    No. of
    Terminals
    Input Voltage,
    V DC
    Trip Voltage
    Trip Time,
    sec.
    Reset
    Type
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Adjustment Mechanism
    Ht.
    Wd.
    Dp.
    Digital Display
    Type
    Features
    Each
    1 Circuit Controlled with 1 Off or 1 On—SPDT
     
    With Screw Terminals
    92410V AC to 600V AC, 10V DC to 600V DC0 to 999Automatic3 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad3.6"0.9"3.6"LCDRemote Reset8446N1050000000
     
    With Spring-Clamp Terminals
    92410V AC to 600V AC, 10V DC to 600V DC0 to 999Automatic3 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad3.8"0.9"3.6"LCDRemote Reset8446N106000000
     

    Current-Monitoring Relays

    Image of Product. Front orientation. Contains Annotated. Monitoring Relays. Current-Monitoring Relays, Screw Terminals with IO-Link, Keypad Adjustment.
    Image of Product. Front orientation. Contains Annotated. Monitoring Relays. Current-Monitoring Relays, Spring-Clamp Terminals with IO-Link, Keypad Adjustment.

    Screw Terminals

    with IO-Link,

    Keypad Adjustment

    Spring-Clamp

    Terminals with

    IO-Link, Keypad

    Adjustment

    Protect electrical equipment from overcurrent and undercurrent damage—these relays continuously monitor current flow. When current is outside a set range, they trip and cut power to prevent overheating, fire hazards, and stalling. Rated IP20, these relays have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on a 35 mm DIN rail (also known as DIN 3 rail) for fast installation.
    Spring-Clamp-Terminal Wire Connection—Relays with spring-clamp terminals connect and disconnect to wire without screws. Because there’s no screw, these connections are less likely to loosen over time, even in high-vibration environments.
    IO-Link Communication Protocol—Relays with IO-Link can be programmed, monitored, and reset remotely by connecting them to a programmable logic controller (PLC), human-machine interface (HMI), or computer. If you want to program them locally, they have a keypad.
    No. of
    Terminals
    Input Voltage,
    V DC
    Trip Current,
    amp
    Trip Time,
    sec.
    Reset
    Type
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Adjustment Mechanism
    Ht.
    Wd.
    Dp.
    Digital Display
    Type
    Each
    Screw Terminals with IO-Link
     
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    9240.05 to 100 to 999Automatic3 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad3.6"0.9"3.4"LCD8123N110000000
     
    Spring-Clamp Terminals with IO-Link
     
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    9240.05 to 100 to 999Automatic3 amp @ 240V AC
    1 amp @ 24V DC    		400V AC
    250V DC    		External Controller, Keypad3.8"0.9"3.4"LCD8123N12000000
     
    back to top