McMaster-Carr logo
    Filter by
    System of Measurement
    Switching Current
    Industrial Info Snippet
    Number of Terminals
    Number of Circuits Controlled
    Operation Type
    Switch Designation
    Industrial Info Compare
    Switch Starting Position
    Industrial Info Compare
    Relay Type
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Enclosure Rating
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    UL File Number
    Switch Action
    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

    Hazardous Location Relays

    Image of Product. Front orientation. Contains Annotated. Relays. Hazardous Location Relays, Screw Terminals.
    Image of Product. Front orientation. Relays. Hazardous Location Relays, Spring-Clamp Terminals.

    Screw Terminals

    Spring-Clamp

    Terminals

    Sealed for safety, these relays are a good choice for hazardous locations where combustible or corrosive gases may be present.
    Screw Terminals—Relays with screw terminals are considered interface relays, so they’re placed between your controller and components to isolate the input and output circuits. This means they protect your component from voltage spikes while amplifying the relay’s signal and reducing interference for reliable transmission. They are often used for switching applications, such as small motors and pilot lights. The included relay socket mounts on 35 mm DIN rail (also known as DIN 3 rail).
    Spring-Clamp Terminals—Relays with spring-clamp terminals are considered interface relays, so they’re placed between your controller and components to isolate the input and output circuits. This means they protect your component from voltage spikes while amplifying the relay’s signal and reducing interference for reliable transmission. They are often used for switching applications, such as small motors and pilot lights. The included relay socket mounts on 35 mm DIN rail (also known as DIN 3 rail). Relays with spring-clamp terminals connect and disconnect to wires without needing to turn screws. With no screws to shake loose with vibration, the terminals hold tight over time.
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage
    Ht.
    Wd.
    Dp.
    Enclosure
    Rating
    Hazardous Location Rating
    Each
    Screw Terminals
     
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    5120V AC, 120V DC3.56 amp @ 240V AC/30V DC400V AC/125V DC3.5"0.2"2.9"IP20
    		NEC Class I Division 2 Groups A, B, C, D
    		4190N13000000
    5120V AC, 120V DC3.516 amp @ 240V AC/24V DC400V AC/300V DC3.5"0.6"2.9"IP20
    		NEC Class I Division 2 Groups A, B, C, D
    		4190N1900000
    5240V AC, 240V DC3.56 amp @ 240V AC/30V DC400V AC/125V DC3.5"0.2"2.9"IP20
    		NEC Class I Division 2 Groups A, B, C, D
    		4190N1400000
    5240V AC, 240V DC3.516 amp @ 240V AC/24V DC400V AC/300V DC3.5"0.6"2.9"IP20
    		NEC Class I Division 2 Groups A, B, C, D
    		4190N2200000
     
    2 Circuits Controlled with 2 Off or 2 On—DPDT
    8120V AC, 120V DC3.58 amp @ 240V AC/24V DC400V AC/300V DC3.5"0.6"2.9"IP20
    		NEC Class I Division 2 Groups A, B, C, D
    		4190N2100000
    8240V AC, 240V DC3.58 amp @ 240V AC/24V DC400V AC/300V DC3.5"0.6"2.9"IP20
    		NEC Class I Division 2 Groups A, B, C, D
    		4190N2300000
     
    Spring-Clamp Terminals
     
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    5120V AC, 120V DC3.56 amp @ 240V AC/30V DC400V AC/125V DC2.9"0.2"3.7"IP20
    		NEC Class I Division 2 Groups A, B, C, D
    		8163N1300000
     

    Circuit Board Relays

    Image of Product. 4 Terminals. Front orientation. Contains Annotated. Relays. Circuit Board Relays, Solid-State Operation.

    4 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.
    Solid-State Operation—Solid state relays have no moving parts, so they require less maintenance and last longer, switch faster, and are quieter than mechanical relays.
    No. of
    Terminals
    Input
    Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    Ht.
    Wd.
    Dp.
    Pin
    Lg.
    Each
    Solid-State Operation
     
    1 Circuit Controlled with 1 Off—SPST-NO
    460V DC3.52 amp @ 240V AC2501.1"0.2"0.6"0.14"8262T19000000
     

    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.

    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
    5240V AC3.516 amp @ 240V AC2501/4 hp @ 120V AC3.5"0.6"3"LED Indicator4144N220000004026N1200000
     
    back to top